Imax B5 User manual

li-ion/Polymer
Balance Charger
Manual
B5B5
RoHs Certification
ROHS

Thank you for purchasing the
imax B5.You get a rapid
charger that is computerized
with a high performance
microprocessor and
specialized operating
software. It can maintain your
battery at its best condition
and also control them safely.
Please read this entire
operating manual completely
and attentively as it contains a
wide of information youneed
to keep this manual in a safe
placeand be sure topass it on
to the new ownerif you ever
dispose of yours imax B5
B5B5

Maximum safety
Special features:
Delta-peak sensitivity:The automatic charge
termination program workson the principleof
the Delta-peak voltagedetection.
Capacity limit:The charging capacityalways
calculated by multipleof the chargingcurrent
and time.If thecharging capacity exceedsthe
limit the processwill be terminated automatically
when you setthe maximum value.
Processing time limit:youcan also restrainthe
maximum process timeto prevent from any
possible defect.
Input power monitor:To protect the car battery
using as inputpower from being damaged the
voltage of italways monitored. lf it drops below
the lower limitthe process will be ended
automatically.
li-ion/Polymer BalanceCharger
Voltage balancer for Li-polymer battery inside
B5 has anindividual-cell-voltage balancer inside.
So it doesnot need any balancer separately when
charging Lipo batteryfor cell balancing.
High-power and high-performance circuit
B5 employs thecircuit that has maximum output
power of 50w. As aresult it can charge up to14
cells of Nicd/NiMHand 5 series of Li-poly
batteries with maximumcurrent of 5.0A
LCD screen
(16chr.x2lines)
Charging lead
connector
(4mm banana female)
Input power
cable
(DC11-18V)
B5
START/ENTER
To resumeor start
the operation
DEC/INC
To setect sub program
To alterthe value
BATT TYPE/STOP
To select main program
To stop the operation
li-ion/Polymer BalanceCharger

Warning and safety notes
Never leave thecharge unsupervised when it is
connected to itspower supply.lf any malfunction
is observed immediately terminate the process
and refer tothe operation manual.
Keep awaythe unit fromdust,damp,rain,heat
direct sunshine andvibration.Do not drop it.
The circuit ofthe unit is designed to bepowered
by 12V DConly.
This unit andthe battery to charge should beset
up on ahead-resistant,non-inflammable and non-
condu-ctive surface. Neverplace them on a car
seat,carpet or similarsituation.
keep all theinflammable volatile materials well
away fom operatingarea.
Be sure tounderstand the information of the
battery to be charged accuraltely. lf theprogram
is set upincorrectly the battery to be charged.
Reverse the sequencewhen disconnecting.
Toavoid short-circuits between the charge lead.
always connect thecharge cable tothe unit first.
Reverse the sequencewhen disconnecting.
Do not connectmore than one battery pack to
the charge leadat any one time.
Do not attemptto charge or discharge the
following types of battery.
--Battery pack which consists of differenttypes of
cell(including
different manufacturers)
--Battery is already fully charged or just slightly
discharged.
--Non-rechargeable batteries (Explosionhazard).
--Batteries that requirea different charge
technique from Nicd,NIMH,Li-Poly or Pb.
--Faultyor damaged battery.
--Battery fitted with an integral chargecircuit or a
protection circuit.
--Batteries installed ina device or which are
electrically linked toother components.
--Batteries that arenot expressly stated by the
manufacturer to besuitable for the currents the
charger delivers duringthe charge process.
Please bear inmind of checking the following
point before chargeoperation.
--Did you selectthe appropriate program which
are suitable forthe type of battery?
B5 li-ion/Polymer BalanceCharger

--Did you setup adequate current for charging or
discharging?
--Lithium battery pack can be composedwith
parallel and seriescircuits mixed.You have to
check the compositionof the battery pack
carefully before charging.
--Are all connectionsfirm and safe,oris there an
intermittent contact atany point in the circuit?
Those warnings and safety notes are
particularly important! Please followthe
instructions for a maximum safety;otherwise
the charger andthe battery can be damaged
violently.And also it can cause a fireto injure a
human body orto lose the property.
Program flow chart
Li-poly charge
program
Li-poly
Balance charge
program
NIMH
Charge
Program
NICd
Charge
Program
Pb
Charge
program
User
Setting
Li-poly
balancing
charging
NiMH
charging
Nicd
charging
Pb
charging
Temperature
cut-off
Safety timer
limit
Capacity
cut-off
Back-light
brightness
Beep/Buzzer
sound
Batt type stop
Low
input voltage
cut-off
li-ion/poly
charging
Start
enter
Batt type stop
Batt type stop
Batt type stop
Batt type stop
INC
DEC
INC
DEC
INC
DEC
INC DEC
INC DEC
Start
enter
Start
enter
Start
enter
Start
enter
Start
enter
B5 li-ion/Polymer BalanceCharger

INPUT POWER LOW
CUT OFF 10.7V
Initial parameter set up
USER SET
PROGRAM
TEMP CUT OFF
ON 20C
SAFETY TIMER
ON 10min
CAPACITY CUT OFF
ON 5000mAh
BACK LIGHT
64%
Start Enter
This informs you ofits designation
B5 will be
operated with the
default value of
the essential user
settings when itis
connected to a
12V battery for the
first time. The
screen displays
the following
information in
sequence and the
user can change
the value of
parameter on each
screen. When you
are willing toalter
the parameter
value in the
program, press
start enter keyto
make it blinkthen
change the value
with DEC orINC
key. The value will
be stored by
pressing start
enter key once.
An optional feature usingtemperature probe contacting the
surface of battery, the temperature cut-offcan be on oroff. If itis
on, set the maximumtemperature at which thecharger should
allow battery to reachduring charger.Once a battery reahesthis
temperature during charger,the process will beterminated .
When you start acharge process, the integralsafety timer
automatically starts running atthe same time. Thisis programmed
to prevent over charge the battery ifit proves to befaulty, orif the
termination circuit cannot detectthe battery full. Thevalue for the
safety timer should begenerous enough to allowa full chargeof
the battery.
This program sets themaximum charge capacity thatwill be
supplied to the batteryduring charge. Ifthe delta peak voltageis
not detected nor thesafety timer expired byany reason, this
feature will automatically stopthe process at theselected
capacity value.
The beep sounds atevery time pressing thebuttons to confirm
your action. The beepor melody sounded atvarious times during
operation to alert differentmode changes. These audiblesounds
can be on oroff.
This program monitors thevoltage of input battery. If the voltage
drops below the valueyou set the operationforcibly terminated to
protect the input battery.
You canadjust the brightness ofLCD screen at thecharger.
INC DEC
INC DEC
KEY BEEP ON
ON
BUZZER
INC DEC
INC DEC
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
B5 li-ion/Polymer BalanceCharger

Lithium polymer battery program
These programs areonly suitable for
charging and discharging Lithium-polymer
batteries with anominal voltage of 3.7V/cell.
These batteries needto adopt different
charge technique istermed a constant
voltage (CV) andconstant current (CC)
method. The chargecurrent varies
according to thebattery capacity,and is
usually C/2 rate(half capacity as a charge
current). The finalvoltage of charge
process is alsovery important;it should be
4.2V/cell for thenominal voltage of
3.7V/cell. If thefinal voltage exceeds by
more than 1%during charge atany reason
the battery will explode. The charge
current and nominal voltage as for cell
count set onthe charge program must
always be correct for the battery tobe
charged.
When you arewilling to alter the parameter
value in theprogram, press start/enter key
to make itblink then change the value with
DEC of INC key. The value willbe stored by
pressing start/enter keyonce.
LiPo CHARGE
2.OA 11.1V(3S)
This shows the numberof cells
you set up andthe processor
detects. `R`shows the number
of cells found bythe charger
and `S`is the numberof cells
selected by you atthe previous
screen. If both numbersare
identical you can startcharging
by press start enterbutton. If
not, press batt typestop button
to go back toprevious
screen.Then carefully check
the number of cellsof the
battery pack to chargeagain.
The screen shows thepresent
situation during charge process.
To stopcharging press batt
type stop key once.
The value on theleft side of
second line sets acharge
current and the valueon the
right side of secondline sets
the voltage of thebattery
pack.After setting the current
and voltage press startenter
key for more than3 seconds to
start the process.(Charge
current: 0.1---5.0A, Voltage: 1---
5 series)
-
+
INC DEC
-
+
INC DEC
Batt type stop
Start Enter
S:3SER R:3SER
CONFIRM(ENTER)
Start Enter
BL3S 1.2A 12.59V
CHG 022:43 00682
Number
of
cells
Charging
time
Charging
current
Battery
voltage
Charged
capacity
B5
Charging li-ion/poly battery.
li-ion/Polymer BalanceCharger

Charging Li-Poly battery at balancing mode
This is forbalancing the voltages of
Lithium batteries ofthe battery pack
to be charged.Todo this, the battery
pack being chargedshould have the
individual cell connector. And
connect it tothe individual port at the
right side ofcharger. You do not need
connect the battery output jack tothe
output of chargerat this program.
In this mode,the charging process
will be differentfrom ordinary
charging mode. Theinternal
processor of thecharge will monitor
the voltages ofeach cell of the
battery pack and control the
charging current feedingto each cell
to normalize thevoltage.
LiPo CHARGE
2.OA 11.1V(3S)
-
+
INC DEC
-
+
INC DEC
Batt type stop
Start Enter
BL3S 1.2A 12.59V
CHG 022:43 00682
Number
of
cells
Charging
time
Charging
current
Battery
voltage
Charged
capacity
S:3SER R:3SER
CONFIRM(ENTER)
Start Enter
Inquiry the voltage of individual cells
Youcan monitor the present voltage
of individual cellby pressing DEC of
INC button duringthe process.
4.17V 4.17V 4.19V
0.4A 0.00V 0.00V
B5
This shows the numberof cells you
set up and theprocessor detects.
`R`shows the number ofcells
found by the chargerand `S`is the
number of cells selectedby you at
the previous screen. Ifboth
numbers are identical youcan
start charging by pressstart enter
button. If not, pressbatt type stop
button to go backto previous
screen.Then carefully check the
number of cells ofthe battery pack
to charge again.
The screen shows thepresent
situation during charge process.
To stopcharging press batt type
stop key once.
The value on theleft side of
second line sets acharge current
and the value onthe right side of
second line sets thevoltage of the
battery pack.After setting the
current and voltage pressstart
enter key for morethan 3 seconds
to start the process.(Charge
current: 0.1---5.0A, Voltage: 1---5
series)
The first line ofdisplay shows the
voltage of NO.1cell, 2 cell and
NO.3 cell fromthe left. And the left
of Second line showsthe charging
current. The next showsthe
voltage of NO.4and NO.5 cell.
Charging li-ion/poly battery.
li-ion/Polymer BalanceCharger

NiMH/NiCd battery charging program
These programs arefor charging NiMH
(Nickel-Metal-Hydride) or NiCd
(Nicdel-Cadmium) battery commonly
used for R/Cmodel applications.
Tochange the chargingcurrent, press
start enter keyto make it blink then
change the valueusing DEC or INC key.
The value willbe stored by pressing start
enter key once.
Tostart charging, pressstart enter button
for more than3
NIMH CHARGE
CURRENT
NIMH 2.0A 7.42A
CHG 022:45 00890
2.0A
Battery
type
This program simply charges
the battery using thecurrent
you set. The charge current
ranges from 0.1 to5.0A.
Pb (lead-sulphuric acid) battery
charging program
This is programmedfor charging Pb
(lead-acid) battery with nominal voltage
from 2 to12V. Pb batteries are totally
different from NiCdor NiMH batteries.
They can onlydeliver relatively lower
current compare totheir capacity, and
similar restrictions definitelyapply to
charge. So theoptimal charge current
will be 1/10of the capacity. Pb batteries
must not becharged rapidly. Always
follow the instructionis supplied by the
manufacturer of battery.
Pb6s 4.0A 12.59V
CHG 022:43 00682
Pb6s CHARGE
4.OA
12.0A
Charging
time
Battery
voltage
Charged
capacity
Charging
current
Set up the charge current on the
left and the nominalvoltage of
the battery on theright. The
charge current rangesfrom 0.1
to 5.0A. and thevoltage should
match with the batterybeing
charged. Start the charge
process by pressing startenter
key for more than3 seconds.
Charging
time
Charging
current
Battery
voltage
Charged
capacity
The screen displays thecurrent
state of charging.To stopthe
process, press batt typestop
key once.
The audible sound indicates
you the end ofprocess
The screen displays thestate of
charging process. To stop
charging forcibly,press batt
type stop key once.The audible
sound indicates you theend of
process.
-
+
INC DEC
-
+
INC DEC
Batt type stop
Start Enter
B5 li-ion/Polymer BalanceCharger
-
+
INC DEC
Batt type stop
Start Enter

Warning and error messages
The output is connectedto a battery
with incorrect polarity.
This will be displayed in case ofdetect-
ing an interruption of the connection
between battery and output or volun-
tarily disconnection the charge lead dur-
ing the operation of charge ordis-
charge on output.
There was a short-circuitat OUTPUT.
The voltage of inputpower lowers the
limit.
The voltage of lithiumbattery pack
was selected incorrectly. Verifythe
voltage of battery pack
B5 incorporates avarious functions of protective
and monitoring thesystem to verify functions and
the state ofits electronics. In any case of
occurring error,the screen displaysthe cause of
error that isself-explanatory with audible Sound.
There happens malfunction atthe unit
byany reason.
The processor detects thevoltage
difference during charging.
The processor detects thevoltage
difference during charging.
Reversed polarity
Connection break
SHOT ERR
IN VOLTAGE ERR
VOL SELECT ERR
BREAK DOWN
BATTERY CHECK
LOW VOLTAGE
BATTERY CHECK
OVER VOL TAGE
BATTERY VOL ERR
Specifications
Operating voltage range: 10.0~18.0 Volt
Circuit power:
max.50W
Charge current range: 0.1~5.0A
Current drain for balancing Li-po: 200mAh/cell
NiCd/NiMH battery cell count:
1~14cell
li-ion/Polymer cell count:
15 series
Pb battery
voltage: 6V, 12V
Weight:
280g
Dimensions: 130*80*23mm
Warranty and service
We warrant this product for a period of one year
(12 months) from the date ofpurchase. The
guarantee applies only to such material or
operational defects, which are present at the time
of purchasing the product. During thatperiod, we
will repair or replace without servicecharge any
product deemed defective due to thosecauses.
You will be required to present proofof purchase
(invoice or receipt). This warranty doesnot cover
the damage due to wear, overloading, incompe-
tent handling or using of incorrectaccessories.
The voltage of oneof the cell inthe Li-
poly battery pack raisedover the limit.
B5 li-ion/Polymer BalanceCharger

li-ion/Polymer
Balance Charger
B5B5
IMAX B5
IMAX B5

IMAX B5 ,
,.
Delta-peak sensitivity
11-18 DC
(4mm banana female)
(16chr.x2lines)
DEC/INC
BATT TYPE/STOP
(DC11-18V)
B5 li-ion/Polymer BalanceCharger

Li-poly charge
Li-poly
NIMH
NICd
Pb
Li-poly
NiMH
Nicd
Pb
Batt type stop
li-ion/poly
Batt type stop
Batt type stop
Batt type stop
Batt type stop
INC
DEC
INC
DEC
INC
DEC
INC DEC
INC DEC
B5 li-ion/Polymer BalanceCharger

IMAX B5
START/ENTER
DES INC
START/ENTER
LCD
(IMAX B5
INPUT POWER LOW
CUT OFF 10.7V
USER SET
PROGRAM
TEMP CUT OFF
ON 20C
SAFETY TIMER
ON 10min
CAPACITY CUT OFF
ON 5000mAh
BACK LIGHT
64%
Start Enter
INC DEC
INC DEC
KEY BEEP ON
ON
BUZZER
INC DEC
INC DEC
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
-
+
INC DEC
B5 li-ion/Polymer BalanceCharger

3.7v
C/2
3.7 v
4.2v
1%
START/ENTER
DES INC
START/ENTER
LiPo CHARGE
2.OA 11.1V(3S)
-
+
INC DEC
-
+
INC DEC
Batt type stop
S:3SER R:3SER
CONFIRM(ENTER)
BL3S 1.2A 12.59V
CHG 022:43 00682
START/ENTER 3
0.1--5.0A
1--5
"R":
"S":
start/enter
BATTERY
TYPE/STOP
BATTERY
TYPE/STOP
B5 li-ion/Polymer BalanceCharger

NIMH CHARGE
CURRENT 2.0A
-
+
INC DEC
-
+
INC DEC
Batt type stop
S:3SER R:3SER
CONFIRM(ENTER)
BL3S 1.2A 12.59V
CHG 022:43 00682
,
, Star/Enter
3
.( : 0.1-5.0
A, : 1-5 V )
"R":
"S":
START/ENTER
BATTERY
TYPE/STOP
BATTERY
TYPE/STOP
B5 li-ion/Polymer BalanceCharger

, DEC/INC
.
(NiMH)
(NiCd)
START/ENTER
DES INC
START/ENTER
4.17V 4.17V 4.19V
0.4A 0.00V 0.00V
NIMH 2.0A 7.42A
CHG 022:45 00890
-
+
INC DEC
NIMH CHARGE
CURRENT
2.0A
Batt type
stop
0.1--
5.0A
BATTERY
TYPE/STOP
6 12v
(NiMH) (NiCd)
(NiMH)
(NiCd)
1/10
0.1--5.0A
.
start/enter 3
BATTERY TYPE/STOP
Pb6s 4.0A 12.59V
CHG 022:43 00682
Pb6s CHARGE
4.OA 12.0A
-
+
INC DEC
-
+
INC DEC
Batt type stop
B5 li-ion/Polymer BalanceCharger

Reversed polarity
Connection break
SHOT ERR
IN VOLTAGE ERR
VOL SELECT ERR
BREAK DOWN
BATTERY CHECK
LOW VOLTAGE
BATTERY CHECK
OVER VOL TAGE
BATTERY VOL ERR
IMAX B5
Li-poly
12
B5 li-ion/Polymer BalanceCharger