Skyrc iMax B8+ User manual

BALANCE CHARGER/DISCHARGER
LITHIUM BATTERY
Printed in China 2009 www.skyrc.cn
All specifications and figures are subject to change without notice.
B8

TABLE OF CONTENTS
01
General information..................................................................................02
Exterior of the unit.....................................................................................06
Warning and safety notes...........................................................................07
Program flow chat....................................................................................10
.........................................................11
.....................................................14
Charging of lithium battery.........................................................................14
Balance c
"FAST" charging lithium battery..................................................................16
.........................................................17
....................................................................18
...............................19
......................................................................20
.................................................................21
......22
...................................................23
.............................................................................24
...................................................................................24
...................................................................................26
.....................................................27
......................................................................28
Recommended accessories......................................................................30
Conformity declaration..............................................................................31
...........................................................................................32
Warranty and services...............................................................................32
"STORAGE" control of lithium battery
Discharging of lithium battery
Voltage balancing and monitoring during the discharge
NiMH/NiCd battery program
Discharging NiCd/NiMH battery
Charge-to-discharge & discharge-to-charge cycle of NiMH/NiCd battery
Pb(Lead-sulphuric acid) battery program
Discharging Pb battery
Save data program
Load data program
Various information during the process
Warning and error message
Specifications
Initial parameter set up (Users setup)
Lithium battery (Lilo/LiPo/LiFe) program
harging of lithium battery.............................................................15

02 03
General information
Thank you for purchasing iMAX B8+ charger. You have purchased high quality
product made by SKYRC. Reliable SMD technology, outstanding performance
and flexibility, high level of safety features and last but not least their easy
handling and the new technological features you will have a lot of fun with it.
Optimized user interface
When charging ordischarging, B8+ hasan "AUTO" functionthat sets thefeeding
current automatically.Especially for Lithium batteries, it can prevent the over
charging that canlead to anexplosion by user's fault. Every programin the unit
is controlled withmutual links andcommunication for every possible error for
maximum safety.These can be set at user'soption.
It provides mostconvenient balance chargeport for Lithium batteries, the u
Maximum Safety
Delta-Peak Sensitivity: Theautomatic charge termination program works on the
principle of theDelta-peak voltage detection.
Auto-charge current limit:When charging NiCdor NiMH at "AUTO" current mode,
you can setthe upper limitof charge current to avoid from high current charging.
This is veryuseful when chargingthe low impedance and small capacity
NiMH battery in"AUTO" mode.
Capacity Limit: Thecharging capacity always calculated by multiple of the
charging current andtime. If thecharging capacity exceeds the limit the
process will beterminated automatically whenyou set the maximum value.
TemperatureLimit: The temperatureof the battery on charging willrise by its
internal chemical reaction.If you setthe limit of temperature the process will be
expired forcibly whenthe limit hasreached.
Processing TimeLimit: You can also restrain the maximum process time to pre
vent from anypossible defect.
Input Power Monitor:Toprotect the car battery using asinput power frombeing
damaged the voltageof it alwaysmonitored. If it drops below the lower limit the
process will beended automatically.
High-power and high-performancecircuit
B8+ employs thecircuit that hasmaximum output power of 150W. As aresult it
can charge ordischarge up to27 cells of NiCd/NiMH and 8 series of Lithium
batteries with maximumcurrent of 7.0A.Furthermore the cooling system is so
efficient that canhold such a power without any trouble of runningthe CPU orthe
operating program.
niversal
connector, pitch2.54mm,compatible forAlign XH, Kokam/Graupner/Robbe
Packs from 2cells to 8cells.
General information
Maximum Circuit Power Chart
The actual amount ofcharge current feeding to the battery is automaticallybe limited
to 150 Watts,so not to exceed the charger's maximum ratedcharging power.
The maximum discharge poweris approximately 20 Watts. The discharge current
delivered to the chargeris limited by charger's internal thermal sensor formaxi
mum discharge current. Ifthe internal temperature over 80 Celsius, the charger
will be cut off and "TEMP OVER ERR" will showon the LCD. In this case, please
decrease discharge current.
Please refer following chartfor maximum charging/discharging current.
Maximum Circuit Power Chart
20W20W

General information
20W20W
General information
Individual voltage balancefor Lithium batteriesinside
B8+ has anindividual-cell-voltage balancer inside.This does notrequire any
extra balancer whencharging Lithium batteries(Lilo/LiPo/LiFe) for cellvoltage
balancing.
Balance individual cellson discharge
B8+ also canmonitor and balanceindividual cells ofthe Lithium battery pack during
the discharge process.If the voltageof nay onecell varies abnormally, the pro
cess will bestopped with theerror message.
Suitable for varioustypes of Lithiumbatteries
B8+ can acceptthree types ofLithium batteries-Lilo, LiPoand LiFe. They have
different characteristics by their chemistry. You can selectany one of them that you
are going toprocess before thejob. For theirspecifications, refer "Warnings and
safety notes" section.
Lithium battery "Fast"and "Storage" mode
You can charge Lithium battery for specialpurposes. "Fast" chargereduces
the charging timeof Lithium batteryand "Storage" modecontrols the final volt
age of thebattery to besuit for longtime storage.
Data Store/Load
For users convenienceit can storemaximum 10 dataof different batteries. You
can establish thedata contains programsetting of thebattery to charge or dis
charge continually.These data can be called out at any timeyou need andthe pro
cess can beexecuted without programsetting.
Cyclic charging/discharging
Perform 1 to5 cycles ofcharge? discharge ordischarge? charge continually for
battery refreshing andbalancing.
PC based analysisusing USB communication
For technical expert,B8+ offers PCbased program can analysis the characteristic
of the batteryby USB port.It shows agraph of voltage, current, capacity and
temperature curves. Italso shows theindividual voltage ofeach cell in the
Lithium battery pack.
(*PC analysis softwareand USB Linkwire are notincluded)
04 05

This diagram showsthe correct wayto connect your battery to theB8+ charger while
charging in thebalance charge programmode only.
WARNING:
Failure to connectas shown inthis diagram will damage this charger.
The main batteryleads must beconnected along with the balance leadconnector as
shown before chargingyour battery .
Charging
Lead
Connector
(4mm banana female)
Batt type/stop
To select
main program
To stop
the operation
Dec/inc
To selest
sub program
To alter
the value
LCD screen
(16chr.x2lines)
Universal
Connector
Pitch 2.45mm
Start/enter
To resume
or start
the operation Input Power
Cable(DC11~18V)
USB Port
Temperature
Sensor port
Exterior of the unit
Exterior of theunit
Lithium polymer balancecharge program connection diagram
06 07
Never leave thecharger unsupervised whenit is connected to its powersupply. Ifany
malfunction is observedimmediately terminate theprocess and refer to the operation
manual.
Keep the unitaway from dust,damp, rain, heat, direct sunshine andvibration. Do not
drop it.
The circuit ofthe unit isdesigned to be powered by a11-18 DConly.
This unit andthe battery tocharge or discharge should be setup on aheat-resistant,
non inflammable andnon-conductive surface. Neverplace them on a car seat,carpet or
similar. Keepall the inflammablevolatile materials well away from operatingarea.
Cooling vent ofcharger can notbe covered or closed in orderto keep goodventilation.
Make sure tocompletely understand thefeature of batteries to be chargedor
discharged. If theprogram is setup incorrectly,the battery maybe severely damaged.
Especially for Lithiumbattery, itmay cause fireor explode ifcharged incorrectly or
overcharged.
Voltage level: 1.2V/cell
Voltage level: 3.6V/cell
Max charge voltage: 4.1V/cell
Allowable fast charge current: 1C or less
Min. discharge voltage cut off level: 2.5V/cell or higher
Voltage level: 3.7V/cell
Max charge voltage: 4.2V/cell
Allowable fast charge current: 1C or less
Discharge voltage cut off level: 3.0V/cell or higher
Allowable fast chargecurrent: 1C~2C dependson the
performance of cellDischarge voltage cutoff level: 0.85V/cell
(NiCd), 1.0V/cell(NiMH)
Voltage level:3.3V/cell
Max charge voltage:3.6V/cell
Allowable fast chargecurrent: 4C orless(e.g. A123M1)
Discharge voltage cutoff level: 2.0V/cellor higher
Voltage level:2.0V/cell
Max charge voltage:2.46V/cell
Allowable fast chargecurrent: 0.4C orless
Discharge voltage cutoff level: 1.75V/cellor higher
Warning and safety notes
Warning and safety notes

Toavoid short-circuits betweenthe charge lead, always connect thecharge cable to the
unit first andonly then tothe batter to be charged ordischarged. Reverse the sequence
when disconnecting.
Very Important!
Do not connectmore than onebattery pack to the charge leadat any one time.
The charger isnot suitable for the following battery types
Battery pack, whichconsists of differenttypes of cell (including different manufactures)
Battery which isalready fully chargedor just slightly discharged
Non-rechargeable batteries (Explosionhazard).
Batteries that requirea different chargetechnique from NiCd, NiMH, Lilo, LiPo,LiFe or
Pb.
Faulty or damagedbattery.
Battery fitted withan integral chargecircuit or a protection circuit.
Batteries installed ina device, orwhich are electrically linked to other components.
Batteries that arenot expressly statedby the manufacture to be suitablefor the cur
rents the chargerdelivers during thecharge process.
Please bear inmind of checking the following point before
charge operation:
Did you selectthe appropriate program,which are suitable for the type of battery?
Did you setup adequate currentfor charging or discharging?
Lithium battery packcan be composedwith parallel and series circuits mixed. Youhave
to check thecomposition of thebattery pack carefully before charging
Are all connectionsfirm and safe,or is there an intermittent contact at any pointin the
circuit?
Charging
A specificquantity of electricalenergy is fed into the batteryduring charge process.
The charge quantityis calculated bymultiplying charge current by charge time. The
maximum permissible chargecurrent varies accordingto the battery types or its
performance, and canbe found inthe information provided by the battery manufacture.
It is onlyallowed to chargebatteries at rates higher then thestandard charge currentif
they are expresslystated to becapable of quick-charge.
Connect the batteryto charge tooutput terminal of the charger usingsuitable charge
Warning and safety notes
Warning and safety notes
08 09
Warning and safety notes
Lead. They arered, positive (+) and black, negative (-).Since the chargercannot detect
the difference betweenthe internal resistances of the battery pack, cable resistance and
connector transfer resistance, the first requirement if the chargerto work properlyis that
the charge lead shouldbe of adequate conductorcross-section. And also high-quality
connectors (normally gold-contact type) must be fitted to bothends. Refer tothe
information provided by thebattery manufacture regarding chargingmethods, and verify
the recommended charge current and charge time. Especially forLithium batteries, you
have to follow the charge instruction provided by themanufacturer strictly.
Do not attempt to disassemble the battery pack arbitrarily.
You haveto pay attention to verify the capacity and the voltage of the Lithium battery
pack. It may be composed of parallel and seriesconnection mixed. Inparallel link the
capacity of the battery pack is multiplied by thenumber of cellsbut the voltage remains
the same. Thatkind of voltage imbalance causes a fire or explosion during charge
process. We recommendyou compose the Lithium batter pack in series only.
Discharge
The typical purpose ofdischarge is to determinethe residual capacity ofthe battery,or to
lower the voltage ofbattery to a defined level. When youdischarge the battery youalso
have to pay attention on the process same as charging. To avoid thebattery becoming
deep-charged, set the final discharge voltage correctly. Lithiumbatteries should not be
deep-charged to lower thanthe minimum voltage, asthis leads to arapid loss of capacity
or a total failure. Generally,you do not need to discharge Lithium battery voluntarily.
Some rechargeable batteries are said to have a memory effect. If theyare partly used and
recharged before the whole charge is drawn out, they "remember" this and next time will
only use that part of their capacity. Thisis a 'memory effect' NiCd andNiMH batteries are
said to sufferfrom memory effect.They prefer complete cycles; fully charge then use until
empty, donot recharge before storage-allow them to self-discharge duringstorage. NiMH
batteries have less memory effect thanNiCd. The Lithium battery prefers a partial rather
than a full discharge. Frequent full discharges should be avoided if possible. Instead,
charge the battery more often or use a larger battery.
The brand-new NiCd battery pack is partially useful with its capacity until it has been
subjected to 10 or more charge cycles in any case. The cyclicprocess of charge and
discharge will lead tooptimize the capacity ofbattery pack.
Those warning and safely notes are particularly important.
Please follow the instructions for a maximum safely; otherwise
the charger and the battery can be damaged violently. And also
it can cause a fire to injure a human body or to lose the property.

Program flow chat
10 11
INCDEC
INC
DEC INC
DEC INC
B8+ will beoperated with thedefault value of the essential usersettings when it is
connected to a12V battery forthe first time. The screen displaysthe following
information in sequenceand the user can change the value of parameteron each
screen.
When you arewilling to alterthe parameter value in the program,press start/enter
key to makeit blink thenchange the value with Inc> or <Dec key. The value will be
stored by pressing start/enter key once.
Initial parameter set up(Users set up)
Initial parameter set up (Users set up)
B8+ recognize thecell count oflithium battery
automatically at thebeginning of chargeor
discharge process toavoid from erroneoussetting
by user.But deeply dischargedbattery can be
perceived incorrectly.To prevent the error, you can
set the timeterm to verifythe cell count by the
processor. Normally, 10 minutesare enough to
perceive the cellcount correctly.For the batteryof
larger capacity,you may extend the time term.But if
you set thetime term tolong for the battery of
smaller capacity,the charge or discharge process
can be finishedwithin the timeterm with the
erroneous cell count.This may causethe fatal result.
If the processorrecognizes the cellcount incorrectly
at the beginningof charge ordischarge process, you
may extend thetime. Otherwise, youhad better use
with the defaultvalue.
This informs youof its designation.
The screen displaysthe nominal voltageof lithium
battery. There are threekinds of lithiumbattery:
LiFe(3.3V), Lilo(3.6V) orLiPo(3.7V). This isvery
important so youhave to checkthe battery carefully
and set itup correctly.If it isdifferent from correct
value the batteryexplode during chargeprocess.

Initial parameter set up(Users set up)
12 13
Initial parameter set up(Users set up)
You can set thetrickle charge mode on or off.If it is
on, the chargerwill automatically supplythe trickle
charge current toachieve the fullcharge without
overheating the batteryafter fast charge has been
terminated.
When you starta charge process, the integral safety
timer automatically startsrunning at the same time.
This is programmedto prevent overcharge the battery
if it provesto be faulty, or if the termination circuit
cannot detect the battery full. The value forthe safety
timer should begenerous enough toallow a full charge
of the battery.
This program setsthe maximum charge capacity
that will besupplied to thebattery during charge.
If the delta-peakvoltage is not detected nor the
safety timer expiredby any reason, this feature
will automatically stopthe process at the
selected capacity value.
The beep soundsat every timepressing the but
tons to confirmyour action. The beep or melody
sounded at varioustimes during operationto
alert different modechanges. These audible
sounds can beturned on oroff.
This program monitorsthe voltage of input battery.
If the voltagedrops below the value you set the
operation forcibly terminatedto protect the input
battery.
You can adjust thebrightness of LCD screen at
the charger.
INCDEC
DEC INC
DEC INC DEC INC
INCDEC
DEC INC DEC INC
INCDEC
DEC INC
INCDEC
INCDEC
DEC INC
INCDEC
DEC INC
INCDEC
INCDEC
DEC INC
DEC INC
DEC INC
DEC INC
INCDEC
This shows thetrigger voltage forautomatic charge
termination of NiMHand NiCd battery. The effective
value ranges from5 to 20mVper cell. If the trigger
voltage is sethigher, thereis a danger of over charging
the battery; ifit is set lower, there is a possibilityof
premature termination. Pleaserefer the technical
specification of thebattery. (NiCd default: 12mV,
NiMH default: 7mV)
An optional featureusing temperature probecontacting
the surface ofbattery, thetemperature cut-off canbe on
or off. Ifit is on, set the maximumtemperature at which
the charger shouldallow battery toreach during charge.
Once a batteryreaches this temperatureduring charge,
the process willbe terminated toprotect the battery.
The battery ison the cyclicprocess of charge and
discharge can oftenbecome warm aftercharge or
discharge period. Theprogram can insert a time
delay to occurafter each chargeand discharge pro
cess to allowthe battery adequatetime to cool down
before being subjectedto the nextprocess. The
value ranges from1 to 60minutes.
INCDEC
DEC INC DEC INC

Initial parameter set up(Users set up)
These programs areonly suitable forcharging and discharging Lithium batteries with a
nominal voltage of3.3V,3.6V and 3.7Vper cell. These batteries need toadopt different
charge technique thatis termed aconstant voltage (CV) and constant current (CC)
method. The chargecurrent varies according to the battery capacity and performance.
The final voltageof charge processis also very important; it should be precisely
matched with thecharade voltage ofthe battery. They are 4.2Vfor LiPo, 4.1V for Lilo,
and 3.6V forLiFe. The chargecurrent and nominal voltage as forcell count set on the
charge program mustalways be correctfor the battery to be charged.
When you arewilling to alterthe parameter value in the program, press start/enter key
to make itblink then changethe value with Inc> or <Dec key. The value willbe stored by
pressing start/enter keyonce.
Lithium battery (LiIo/LiPo/LiFe)program
Balance charging lithium battery
14 15
The left sideof the firstline shows the type of battery
you select atthe users setting.The value onthe left
side of secondline sets acharge current and the
value on theright side ofsecond line sets the voltage
of the batterypack.
After setting thecurrent and voltagepress
Start/Enter key for morethan 3 secondsto start the
process. (Charge current:0.1~0.7A, Voltage:1~8
series)
This shows thenumber of cellsyou set up and the
processor detects. "R"shows the numberof cells
found by thecharger and "S"is the number of cells
selected by youat the previousscreen. If both
numbers are identicalyou can startcharging by
pressing Start/Enter button. If notpress Batt
type/Stop button to goback to previousscreen.
Then carefully checkthe number ofcells of the
battery pack tocharge again.
The screen showsthe present situationduring
charge process. To stop chargingpress Batt
type/Stop key once.
DEC INC DEC INC
Batt type
stop
Start
Enter`>3seconds`
Start
Enter
number
of
cells
charging
time
charge
current
battery
voltage
charged
capacity
Charging of lithiumbattery
This charging modeis for charging Li-Po/Ion/Fe battery without balance lead.
The left sideof the first line shows the type of battery
you select atthe users setting. The value onthe left
side of secondline sets a charge current and the
value on theright side ofsecond line sets the voltage
of the batterypack.
After setting thecurrent and voltage press
Start/Enter key for morethan 3 seconds to start the
process. (Charge current:0.1~0.7A, Voltage: 1~8
series)
This shows thenumber of cells you set up and the
processor detects. "R"shows the number of cells
found by thecharger and "S" is the number of cells
selected by youat the previous screen. If both
numbers are identicalyou can start charging by
pressing Start/Enter button. If notpress Batt
type/Stop button to goback to previous screen.
Then carefully checkthe number of cells of the
battery pack tocharge again.
The screen showsthe present situation during
charge process. To stop chargingpress Batt
type/Stop key once.
DEC INC DEC INC
Batt type
stop
Start
Enter`>3seconds`
Start
Enter
number
of
cells
charging
time
charge
current
battery
voltage
charged
capacity
LiPo BALANCE
2.0A 11.1V(3S)
This function is for balancing thevoltage of Lithium-polymerbattery cells while charging.
In the balance mode, the batteryneeds to havea balance leadto connect to the individual
balance port at the right side of the charger. Andyou need to connect the battery's power
lead to the output of charger. Charging inthis mode isdifferent from thenormal modes,
because the built-in processor monitors voltageof individual celland control input current
fed into each cell to equalized voltage of individualcell.
Balance charging oflithium battery

The charging currentis getting smalleras the process goes to thenear end term of
Lithium battery charging.To finish charging processearlier, thisprogram eliminate
certain term ofCV process. The charging current willgoes to 1/5from the initial value
to end theprocess while thenormal charging goes to 1/10 duringCV term. Thecharging
capacity may bea bit smallerthan normal charging but the processtime will be reduced.
You can set upthe charging current and the
voltage of thebattery pack beingcharged. As you
press Start/Enter button the voltageconfirmation
will be displayed.And then,if you confirm the
voltage and current,press Start/Enter button
again to startcharging.
This shows thepresent state of"FAST"charging.
Tostop charging arbitrary, press Batt type/Stop
key once.
DEC INC DEC INC
Batt type
stop
Start
Enter
`>3seconds`
number
of
cells
elapsed
time
charge
current
supplied
capacity
Current
voltage of
battery
‘FAST’ charging lithium battery
"FAST" charging lithium battery
This is forcharging or discharging Lithium battery not to be usedfor the time being. The
program will determineto charge or discharge the battery to the certainvoltage
depending on thevoltage of thebattery at its initial stage. Theyare different fromthe
type of thebatter, 3.75V for Lilo, 3.85V for LiPo and3.3V for LiFe per cell. If the voltage
of battery atits initial stage is over the voltage level tostorage. The program will start to
discharge.
DEC INC DEC INC
Batt type
stop
Start
Enter
`>3seconds`
number
of
cells
elapsed
time
charge
or
discharge
current
supplied
capacity
Current
voltage of
battery
You can set upthe current and the voltage of the
battery pack tobe charged. The current will be
used for chargeor discharge thebattery to reach
the "STORAGE" levelof voltage.
The screen showsthe present situationduring
charge process. To stop chargingpress Batt
type/Stop key once.
‘STORAGE’ control of lithium battery
"STORAGE" control lithium battery
16 17

The value ofdischarge current onthe left side of
screen may notexceed 1C fora maximum safety
and the finalvoltage on theright should not be
under the voltagelevel that isrecommended by
the battery manufactureto avoid deep
discharging.
Tostart to dischargepress Start/Enter key for
more than 3seconds.
(Discharge current:0.1~5.0A)
This shows thepresent state ofdischarge. To
stop discharging pressBatt type/Stop key once.
DEC INC DEC INC
Batt type
stop
Start
Enter
`>3seconds`
elapsed
time
discharge
current
battery
voltage
discharged
capacity
Discharging of lithium battery
Discharging of lithiumbattery
The processor monitorsthe voltage of individual cells during 'storage-mode' and
'discharge' of Lithiumbattery pack. It tries to normalize the voltage tobe equal. For
this feature, theindividual plug of the battery pack should be connectedto the
individual port ofthe charger.
If the voltageof an oneor more cells varies abnormally duringthe procedure, B8+
terminates the processforcibly with the error messages. If this happens, thebattery
pack contains thebad cell, orthe bad connection of the cableor plug. You can easily
know which onecell is badby pressing Inc> button at timeof showing the error
messages.
INC
INC
The processor foundthat the voltageof one of the cell
in the Lithiumbattery pack istoo low.
In this case,the 4th cellis bad. If there happen the
connection-break of thecable or plug,the voltage
value may showzero.
Voltage balancing and monitoringduring the discharge
Voltage balancing and monitoring during the discharge
18 19

These programs arefor charging ordischarging NiMH(Nickel-Metal-Hydride) or
NiCd(Nickel-Cadmium) battery commonlyused for R/C model applications. To alter the
value at thedisplay, pressStart/Enter key to makeit blink thenchange the value using
Inc> or <Dec key. The value willbe stored by pressing Start/Enter key once.
Tostart the process,press Start/Enter button for morethan 3 seconds.
This program simplycharges the batteryusing
the current youset. In Aut mode,Youneed to
set the upperlimit of chargecurrent to avoid from
higher feeding currentthat may damagethe bat
tery. Becausesome batteries of low impedance
and small capacitycan lead tothe higher charge
current by theprocessor at automaticcharge
mode. But in Man mode, it willcharge the bat
tery with thecharge current youset at the display.
Each mode canbe switched bypressing Inc> and
<Dec button simultaneouslywhen the current
field is blinking.
The screen displaysthe current stateof charging.
Tostop the process,press Batt type/Stop key
once. The audiblesound indicated you the end of
process.
DEC INC
Batt type
stop
Start
Enter
`>3seconds`
elapsed
time
charge
current
battery
voltage
discharged
capacity
battery
type
NiMH/NiCd battery program
NiMH/NiCd battery program
Charging NiCd/NiMH battery
Set discharge currenton the leftand final voltage on
the right. Thedischarge current ranges from 0.1 to
5.0A andthe final voltageranges from 0.1 to 30.0V.
to start theprocess, press Start/Enterkey for more
than 3 seconds.
The screen displaysthe current stateof discharge.
You can alter thedischarge current by pressing
Start/Enter key duringthe process. Once you
change the currentvalue, store itby pressing
Start/Enter button again.To stop discharging press
Batt type/Stop keyonce. The audible sound
indicates you atthe end ofprocess.
DEC INC
Batt type
stop
Start
Enter
`>3seconds`
battery
type
elapsed
time
charge
current
battery
voltage
discharged
capacity
DEC INC
Discharging NiCd/NiMH battery
Discharging NiCd/NiMH battery
20 21

Set the sequenceon the leftand the number of
cycle on theright. You can usethis function for
balancing, refreshing andbreak-in the battery. To
avoid rising temperatureof the battery, there will be
a brief cool-offperiod that already fixed at User
setting after each chargeand discharge process.
The cycling numberranges from 1to 5.
Tostop the process,press Batt type/Stop key
once.
You can change thedischarge or charge current by
pressing Start/Enter key once duringthe process.
The audible soundindicates you theend of process.
At the endof the process,you can see charged or
discharged electric capacitiesof the battery at
each cyclic process.By pressing Inc> or <Dec
button, the screenshows the result of each cycle in
order.
DEC INC
Batt type
stop
Start
Enter
`>3seconds`
elapsed
time
discharge
or charge
current
battery
voltage
DEC INC
discharge
or charge
capacity
battery
type
Charge-to-discharge & discharge-to-charge cycleof NiMH/NiCd battery
Charge-to-discharge & discharge-to-
charge cycle ofNiMH/NiCd battery
This is programmedfor charging Pb(lead-acid)battery with nominal voltage from 2 to
36V. Pb batteries aretotally different fromNiCd or NiMH batteries. They canonly
deliver relatively lowercurrent compare totheir capacity, and similar restrictions
definitely apply tocharge. So theoptimal charge current will be 1/10 of the capacity. Pb
batteries must notbe charged rapidly. Always follow the instruction is supplied bythe
manufacture of battery.
When you arewilling to alterthe parameter value in the program, press Start/Enter key
to make itblink then changethe value with Inc> or <Dec key. The value willbe stored by
pressing Start/Enter keyonce.
Set up thecharge current onthe left and the
nominal voltage ofthe battery onthe right. The
charge current rangesfrom 0.1 to7.0A and the
voltage should bematched with thebattery being
charged.
Start the chargeprocess by pressingStart/Enter
key for morethan 3 seconds.
The screen displaysthe state ofcharging process.
Tostop charging forcibly, press Batt type/Stop key
once. The audiblesound indicates you at the end
of process.
DEC INC
Batt type
stop
Start
Enter
`>3seconds`
DEC INC
elapsed
time
charge
current
battery
voltage
charge
capacity
Pb(Lead-sulphuric acid) battery program
Pb(Lead-sulphuric acid) battery program
Charging Pb battery
22 23

Set discharge currenton the left and final voltage
on the right.The discharge currentranges from
0.1 to 5.0A.Tostart the process,press
Start/Enter key for morethan 3 seconds.
The screen displaysthe current stateof
discharge. You can alterthe discharge current by
pressing Start/Enter key during theprocess.
Once you changethe current value,store it by
pressing Start/Enter button again.
Tostop discharging pressBatt type/Stop key
once. The audiblesound indicates you at the end
of process.
DEC INC
Batt type
stop
Start
Enter
`>3seconds`
DEC INC
battery
type
elapsed
time
discharge
current
battery
voltage
discharge
capacity
B8+ has adata storage andload program for your convenience. Thisfeature can store
up to 10battery data bynumber that represent the individual specification of batteries
you are using.They can becalled back for the process ofcharging or discharging
without setting upthe program again.To set up theparameter value in the program,
press Start/Enter key to makeit blink thenchange the value with Inc> or <Dec key.
Discharging Pb battery
Discharging Pb battery
Save data program
13-1415-1617-1819-2021-2223-2425-2627-2829-3031-3233-3435-36
The parameter valuesetting up in this screen does
not affect chargeor discharge process. They only
represent the specificationof the battery. The
following screens willautomatically be displayed
exactly matched withthe battery type you set up.
The example showsthe battery pack of NiMH, 12
cells and 3000mAhof capacity.
Set up thecharge current formanual charge mode,
or the currentlimit for automatic charge mode. Each
mode can beswitched by pressingInc> and <Dec
button at thesame time when the current field is
blinking.
Setting up dischargecurrent and final voltage
Setting up thesequence of charge and discharge,
and the cyclingnumber
Saving the data
Start
Enter
Type of
batterycapacity
voltage date
number
Batt type
stop
Start
Enter
`>3seconds`
DEC INC DEC INC
DEC INC DEC INC
DEC INC
DEC INC DEC INC
Start
Enter
`>3seconds`
Save data program
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This program callsback the datathat was stored at "Save Data"program.
Toload the data,press Start/Enter key once toblink the data number field andselect
the number usingInc> or <Deckey then press Start/Enter key formore than 3seconds.
Select the datanumber to becalled back.
The data matchedwith the numberwill be displayed
at this time.
Loading the data.
You can inquire variousinformation on LCDdisplay during charging or discharging
process. When youpress<Dec button the chargershows the establishment of user
settings. Andalso you canmonitor the voltage of individual cell by pressing Inc> button
when the individualconnection cable islinked to the Lithium battery being processed.
Start
Enter
Start
Enter
`>3seconds`
Load data program
Load data program
Various information during the process
The final voltagewill be reachedat the end of
process.
The internal temperatureof the charger and the
temperature of batterybeing charged.
(The external temperatureonly will be displayed
when using thethermal probe.)
The present voltageof input DCpower.
DEC
DEC
DEC
DEC
DEC
INC
Using the individualconnection cable tothe
battery, youcan check the individual voltages of
each cell inthe battery pack.When connect the
cable to theport on theright side of the charger
the program showsthem for maximum8 cells in
sequence. To utilize thisfeature, the battery pack
must have outputconnector that linkedto each
cells.
Various information during theprocess
26 27

The output is connected to a battery with
incorrect polarity
This will be displayed in case of detecting an
interruption of the connection between battery
and output or voluntarily disconnecting the
charge lead during the operation of charge or
discharge on output.
A short-circuit at output. Please check the
charging leads.
The voltage of input power drops below the limit.
The voltage of Lithium battery pack was
selected incorrectly. Verify the voltage of
battery back carefully.
There happens the malfunction at the charger
circuit by any reason.
B8+ incorporates avarious functions ofprotective and monitoring the system to verify
functions and thestate of itselectronics. In any case of occurring error, thescreen
displays the causeof error thatis self explanatory with audible sound.
Warning and error messages
Warning and error messages
The processor detects the voltage is lower
than you set at Lithium program. Please check
the cell count of the battery pack.
The processor detects the voltage is higher
than you set at Lithium program. Please check
the cell count of the battery pack.
The voltage ofone of thecell in the Lithium
battery pack istoo low.Please check the
voltage of thecell one byone.
The voltage ofone of thecell in the Lithium
battery pack istoo high. Pleasecheck the
voltage of thecell one byone.
There is badconnection at theindividual
connector. Pleasecheck the connectorand
cables carefully.
The internal temperature of the unit goes too
high. Cool down the unit.
The processor can not continue to control the
feeding current by any reason. The unit needs
to be repaired.
Warning and error messages
28 29

EH Adaptor XH Adaptor HP/PQ Adaptor
TP/FP Adaptor
30A DC
Power Supply
Software Kit Temperature
Sensor Cable
Recommended accessories
Dean charging cable Tamiyacharging cable
TRAXXAS charging cable Glow charging cable Bullet charging cable
EC3 charging cable Crocodile clip
charging cable
Futaba RX
charging cable
Conformity declaration
IMAX B8+ satisfyall relevant andmandatory EC directives and
.
For EC directives:
The product hasbeen tested tomeet the following technical standards:
FCC Part 15Subpart B: 2008
This symbol means that you must dispose of electrical from the
General household wastewhen it reachesthe end of its useful life.
Take your chargerto your localwaste collection pointor recycling centre.
This applies toall countries ofthe European Union, and to other European
countries with aseparate waste collectionsystem.
30 31

Operating voltage range:10.0~18.0Volt
Circuit power: max.150 Watts
Charge current range:0.1~7.0A
Discharge current range:0.1~5.0A
Discharge circuit power:max 20 Watts
Current drain forbalancing Li-Po: 300mA/cell
NiCd/NiMH battery cellcount: 1~27 cells
Lithium battery cellcount: 1~8 Series
Pb battery voltage:2 to 36V
Weight: 480g(Net Weight)
Dimensions: 163.8X106.2X45.6mm
Specifications
Specifications
Warranty and services
We warrant thisproduct for a period of one year(12 months) fromthe date of
purchase. The guaranteeapplies only tosuch material or operational defects,
which are presentat the timeof purchasing the product. During that period, we
will repair orreplace without servicecharge any product deemed defective due
to those causes.
You willbe required to present proof of purchase (invoice orreceipt). This
warranty does notcover the damagedue to wear, overloading, incompetent
handling or usingof incorrect accessories.
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