UTL S8 User manual

SHENZHEN UTILITY POWER SOURCE CO., LTD
SPECIFICATION FOR APPROVAL
Customer：Digibras Indústria do Brasil S/A
Customer Model: S8
UTL Model: BatteryUTL-4B （3.7V/650mAh）
Samples QTY: 10PCS UUU
Approval of Customer Approval of Company BY TECHNOLOGY DEPT FROM UTL
PACK
No. U-2012062603
Dept. Dept.
Last Version A0
Effective Date 2012-06-26
Page 14
Prepared Zhi Guang Liu
Checked
Valid Date Valid
Date Approved Zheng Jiao Luo
Add.: Floor 3rd, Building 9 and Building 5, Huiye Technology Park Zone, Guanguang Road, Gongming town,
Bao'an District, Shenzhen.
Tel ：[phone]
Fax:：+ 86-755-29891897
Http: www.www.szutl.com.cn
1

SHENZHEN UTILITY POWER SOURCE CO., LTD
( History Of UTL-4B Project Version Update)
Version No. Main Update Description Editor Valid Date
A0 The First Version Zhi Guang Liu 2012-06-26
2

SHENZHEN UTILITY POWER SOURCE CO., LTD
Content
1. The Scope of Application …….……………….….………….………….……….……….…4
2. Test condition………….………….……………………….………….…….……………… …..4
3. Finished Product …………..…………….……….…….………………………..….….…….…4
Description………….…………….…………. ….…….…….…….………...…………………..4
Main technical parameters…….………….…………….…….….………........….…………….4
General performance……….………….………….……….…….…………… ….…….………5
Safety performance……….………….………….………………………….….………………. 5
Environmental suitability………….……………….…………………………………..…………6
4. Parts and accessories ………………….…………. ……….……………………..…….…..7
Main parts list …………….……………………………………………………..………………7
PCBA………….…….…………………………………………………………….….……...…….7
Case, structure and size ………….………….………………..……………….….…………….9
5. Packing and transportation…………….…….……………………………….….……………..12
6. Storage and Warranty Period …………….………………...………….…………….….….14
7. Third Party Certification…………….…………………………………………….……..…….…14
8. Instructions and Warnings ……………….……….…………………………………….…….…15
3

SHENZHEN UTILITY POWER SOURCE CO., LTD
1、Scope of Application
This specification applies to UTL-4B, compatible with cellular phone battery, referring to GB/T
18287—2000 《Generic specification of cellular phones applying li-ion battery》.
2、Test condition
2.1 Environmental test condition
Unless otherwise specified, every experiment in this specification should be run in standard atmosphere
conditions :：
Temperature:-20℃～+45℃
Relative humidity：45%～75%
Atmospheric pressure:86kPa～106kPa
2.2 Measuring instrument and equipment requirement
2.2.1 The precision of voltage measuring instrument should not be less than level 0.5, internal
resistance should not be less than 10KΩ/V.
2.2.2 The precision of
current measuring instrument should not be less than level 0.5,
2.2.3 The accuracy of time measuring instrument should not be less than ±0.1%.
2.2.4 The accuracy of temperature measuring instrument should not be less than ±0.5 .℃
3、Finished Product
3.1 Description
Battery Model：BL-4B
3.2 Main technical parameters
Item Parameter Note
Rated capacity 650mAh 0.2C5A
Rated voltage 3.7V
Internal resistance ≤150mΩRadiocomm .tester
Charging mode CC/CV constant current to constant
voltage(4.2v)
Normal charge 0.2C5A 130 mA
Quick charge 1C5A 650mA
4

SHENZHEN UTILITY POWER SOURCE CO., LTD
Charging cut off voltage 4.20V
Discharging cut off voltage 2.75V
Maximum discharge current 1C5A 650mA
Ex-factory voltage 3.75～3.95V
Load voltage ＞3.65V
Size （46.0±0.15)*（34±0.15)*（5.10±0.15)mm (refer to Size figure)
Weight 16.0g
Charge temperature 0℃～+ 45 .℃
Discharge temperature –20℃～+ 45℃
3.3 Generic performance
Item Test approach Judge standard
Normal Charge
At the environmental temperature of (20±5) ,charge the battery by 0.2C5A℃
current, when the voltage reach to 4.2v,then turn to use 4.2v constant voltage to
charge, stop charging when charging current is less than 0.01C5A,charging
time≤8h
Quick charge
At the environmental temperature of (20±5) ,charge the battery by 1C5A current,℃
when the voltage reach to 4.2v,then turn to use 4.2v constant voltage to charge,
stop charging when charging current is less than 0.01C5A,charging time≤3h
Rated capacity At the environmental temperature of (20±5) , wait 0.5h after normal charging℃
finished, and then discharge to 2.75V by 0.2C5A constant current.
（Discharge
time）≥300min
1C capacity At the environmental temperature of (20±5) , wait 0.5h after normal charging℃
finished, discharge to 2.75V by 1C5A constant current.
（Discharge
time）≥51min
Resistance Using AC 1kHz for Inspection ≤150mΩ
Ability of holding
electricity
After normal charge being finished, at the environmental temperature of (20±5) ,℃
open loop of the battery for 28 days, 0.2C5A discharge to 2.75v
（Discharge
time）≥255min
Circulation Life
At the environmental temperature of (20±5) , wait 0.5h after 1C5A charging℃
finished, then discharge by 1C5A constant current to 2.75V. Wait 0.5h after
discharge finished, then go to next charge-discharge circulation until two
successive discharge time are less than 36mins.
Circulation time
≥300 cycles
3.4 Safety performance
5

SHENZHEN UTILITY POWER SOURCE CO., LTD
item test approach Note
Over-charge
protection
performance
After charging being finished, use constant current and voltage source
to load the battery for 8 hours, set voltage of the constant current and
voltage source to 2 times of nominal voltage (3.7V*2),and set the
current to 2C5A of external impressed current.
Battery may not
explode, flame up or
leakage
Over-discharge
protection
performance
At the environmental temperature of ((20±5) ), discharge the battery℃
by using 0.2C5A to the end voltage, and link it to 30Ωresistance to
discharge for 24 hours.
Battery may not
explode, flame up or
leakage
Short-circuit protection
performance
After fully charged, short circuit the battery by 0.1Ωresistance for 1
hour, observe the appearance of the battery, then cut off the circuit.
Use 0.2C5A current to discharge shortly for 5 seconds, then measure
the battery voltage by voltmeter.
If the battery voltage
≥3.7V ,the battery
may not explode,
flame up, fume or
leakage.
Shock test Put the battery on shock test machine, let a 10kg hammer freely drop
from 1m high, to strike the battery fixed on the machine.
The battery can be
allowed for being
deformed, but may
not flame up or
explode.
Over charge
This should be carried out after the outer protection circuit has been
removed. Put the battery linked with thermocouple in fume hood, then
link the two poles to a constant current and voltage source, turn the
current to 3C5A,voltage to 4.6v until the battery voltage lowered to
4.6v and battery current lowered to 0A. Observe the battery
temperature's change,end the experiment when the battery
temperature decrease to 10 lower than the peak value.℃
The battery may not
explode or flame up.
Short circuit
Put the battery linked with thermocouple in fume hood, short circuit
the two poles by copper wire(total resistance of the circuit should not
larger than 50mΩ). Observe the battery temperature's change, end
the experiment when the battery temperature decrease to 10 lower℃
than the peak value.
.
The battery may not
explode or flame up,
the surface
temperature of the
battery may not be
higher than 150℃
Thermal shock Put the battery in the thermobank, heighten the temperature at the
rate of （5±2℃℃）/min to 130 ±2 then keep it for 30mins.℃℃
The battery may not
explode or flame up.
3.5 Environmental suitability
item test approach Note
High temperature
discharging performance
。
At the environmental temperature of ((20±5) ), after quick℃
Discharge time
≥51min,no deforming,
6

SHENZHEN UTILITY POWER SOURCE CO., LTD
charging finished, put the battery to（55±2）high℃-temperature box
for 2 hours, then discharge it to 2.75V by 1C5A constant current.
leaking, or explosion
Low temperature
discharging performance
At the environmental temperature of ((20±5) ), after quick℃
charging finished, put the battery to（-20±2）low℃-temperature box
for 16-24 hours, then discharge it to 2.75V by 0.2C5A constant
current.
Discharge time
≥180min,no
deforming, leaking, or
explosion
Stability to wet heat
After normal charging finished, put the battery in constant temp
and humidity box with temperature of（40±2）,relative humidity of℃
90%-95% for 48 hours. Then put out the battery in the environment
of （20±5）for 2 hours.℃Observe the appearance of the battery,
then discharge it to 2.75V by 1C5A constant current.
Discharge time
≥36min,no deforming,
leaking, or explosion
Vibration
After the battery fully charged, fix it onto the vibration machine, urn
the vibration frequency and amplitude by following: X,Y,Z 3
directions for each directions doing 10Hz～55Hz cycle vibration for
30 minutes, rate of sweep frequency is 1oct/min.
Vibration frequency:10Hz～30Hz Displacement amplitude:0.38mm
Vibration frequency:30Hz～55Hz Displacement amplitude:0.19mm
After the vibration, observe the appearance of the battery, inspect
the battery voltage.
Battery
voltage≥3.7V,no
apparent damage,
leakage, fuming or
explosion
Free fall
After quick charging, put the battery sample on a 650mm high
place then let it freely fall onto a 18mm-20mm thick hard wood
board on concrete floor. From each of X,Y,Z, positive, negative(six
directions) to drop the battery, observe the appearance of the
battery, discharge it to 2.75V by 1C5A constant current. Then by
the way of 1C5A to run no less than 3 charge-discharge circles.
Discharge time
≥51min,no leakage,
or explosion, it can
normally work when
applied into cellular
phone, the catch lock
can normally work.
Bumping test
Respectively according to X,Y,Z three perpendicular axes, fix the
battery on the vibration machine by holder, turn the acceleration
speed by following, doing bumping test during pulse time; pulse
peak acceleration speed:100m/s2,bumping time per minute :40～
80;pulse duration :16ms, Collision times: 650±10
No apparent damage,
leakage, fuming or
explosion. Voltage no
less than 3.6v
7

SHENZHEN UTILITY POWER SOURCE CO., LTD
4、Parts and accessories
4.1 Main parts list
4.2 Mainly used parts and accessories: battery cell, PCBA, outer case, refer to main parts list
4.3 Battery cells
Model：U473441AR 规格 type：3.7V/650mAh
4.3.1 Outer size
Sequence
number
Detail Type
1 Thickness 4.70+0.30mm
2 Width 34.0-0.5mm
3 Length 41.0-0.5mm
4.3.2 Main technical parameter
Item Type Note
Rated capacity 650mAh 0.2C5A
Rated voltage 3.7 V
Resistance ≤60 mΩAC
Charging current 0.2C5 0 ~ 45°C
Charging voltage 4.2±0.04V
Charging cut off current 0.02C5
Discharging cut off
Voltage
2.75V
Charging time ≤8.0 hours
Cell weight 14.0g
4.4 PCBA
Top
8

SHENZHEN UTILITY POWER SOURCE CO., LTD
Bottom
4.4.1 Main technical details of PCBA
Item Min value Classic value Max value Note
Over-charge protection voltage 4.30V 4.325V 4.35V
Over-charge protection lag time 0.96s 1.2s 1.4s
Over-discharge protection voltage 2.40V 2.50V 2.60V
Over-discharge protection lag time 115ms 144ms 173ms
Over-current protection lag time 7.2ms 9ms 11ms
Over-current protection current 2.0A / 6.0A
Short circuit protection time 220us 320μs 380 μs
Quiescent current drain / / 6 μA
resistance 48 mΩ65mΩ
4.4.2 PCBA electric circuit diagram
D1
1
S1
2
S1
3
G1
4G2 5
S2 6
S2 7
D2 8
U2
R1
R2
R3
C1
DO
1
CO
3
VM 2 TD
4
VCC
5
VSS
6U1
B+
B- P-
ID
P+
Ouput terminal
Lead-out terminal use golden finger output approach, it requires that there's no scratch, oxidation,
rust on the surface, thickness of gold plated layer greater than 0.04um,nickel plated layer greater than
9

SHENZHEN UTILITY POWER SOURCE CO., LTD
4um. Details refer to the PCBA structure diagram for details.
4.4.3 Main Components
Position Num Component name Component type Wrap Quantity Brand
U1 IC MM3280H02NRH SOT-23-6 1 MITSUMI
U2 MOSFET AO8830 TSSOP-8 1 AO
R1 SMD resistor 330R±5% 0603 1 HUA XIN
R2 SMD resistor 2.2K±5% 0603 1 HUA XIN
R3 SMD resistor 68K±5% 0603 1 HUA XIN
C1 SMD capacitance 0.1u 25V 0603 1 HUA XIN
/ PCB BL-5K / 1 LT
4.5 Outer case and structure size
4.5.1 Appearance requirement
Item Inspection item Test approach and judgement standard
Serious flaw
No apparent shrinkage, craze, deformation, Delamination and burr, no big
difference of color by comparing with colour swatch. No confusion of
model and num, disconformity between silkscreen artwork and sample
model, and miss printing
1 Appearance
Light flaw
No scratch, Silver streaks, color spot, greasy dirt, unknown object, pit,
whitening, bubbles, oil, lack of oil, shade, lack of brightness of color; inner
surface with no Delamination, incorrect printing, damage, overlapped,
slur.
2 Size
Refer to outer case engineering print, key control size and tolerance
conforms to the print's requirement.
fix in PCBA, cells etc. assembled with no interference .
3 Assembling
falling Conforms to battery
Falling test requirement.
4 Installing
Installed with right position, no obvious resistance in installing the battery.
No obvious gap, position deviation, and uniformed assembling gap
4.5.2 SIZE
Battery size and label
10

SHENZHEN UTILITY POWER SOURCE CO., LTD
Label:
5、Packing and transportation
5.1 packing figure
Every battery should be packed by anti-static bag. Every package with battery should be stored in the
dry , anti-dust and anti-moisture packing carton. Every packing carton outside should be indicated
product name , type, quantity , gross weight, manufacturer and contact address , also should show
'handle with care' , 'keep dry' and 'up' and other necessary signs. The packing and storage figure should
be in accord with GB191--2000 Requirement. Every battery instruction should have the following
Chinese signs : product name , model , rated voltage, rated capacity , limited charging voltage ,standard
implementation code, positive and negative pole , trademark , warning instruction , manufacturing date ,
lot number and manufacturer name (serial number including the above data ).
5.2 Shipment
Battery should be packed in cartons and shipped under the state of half capacity 30%-50% .The
excessive vibration , impaction or squeezing , and exposing in the sun or rain should be prevented in the
11

SHENZHEN UTILITY POWER SOURCE CO., LTD
transportation process . The batteries should be transported by the normal vehicle such as by
automobile , by train , by sea or by air .
6、storage and guarantee period
The batteries should be stored in the clean, dry and ventilated room at the temperature of -20℃～45 ,℃
and the relative humidity is not more than 75% . The battery should avoid touching the corrosive
substance , and keep far away fire and heat .
Battery should be charged every six months during storage , and the voltage keep 3.7V～4.0V after
charging . Using the stored cells and delivering batteries should follow ' first in , first out ' .
The storage time limit of battery is 12 months from the beginning day of storing .The expired batteries
must be inspected completely , only the qualified batteries can deliver to the purchaser . The unqualified
ones should be checked again . If they are still unqualified , the purchaser have right to deal with the
bad ones .
7、End product certificated by third party, parts and accessories all conform to the requirements of
RoHs .
8、Instructions and Warnings
Instructions
1) Before use ,please carefully read the manual and outer label of the battery.
2) Please use the battery in normal indoor environment .temp:-20～+45℃，relative humidity：55±20%。
3) While using the battery, stay away from heat source and hight pressure, don't let children play the
battery. Only using specified charger for charging. Don't charge the battery over 24 hours.
4) Don't short circuit two poles of the battery. Don't dismantle the battery yourself. Keep the battery from
moisture to avoid danger.
5) If the battery would out of use for a long time, please keep the battery in save place. Make the battery
in the state of half-charged. Don't wrap the battery by conductive material to avoid the danger of the
direct contact of metal materials. Keep the battery in cool dry place.
6) Properly handle the waste batteries, don't not dump them to fire or liquid.
Cautions:
1) Don't use the battery under strong sunshine.
12

SHENZHEN UTILITY POWER SOURCE CO., LTD
Don't use the battery under strong sunshine environment, to avoid heating, deformation and fuming,
at least to avoid the lowering of the performance and longevity of the battery.
2) Anti-static
The battery with protection circiut can avoid various accidents . Do not use batteries in the
electrostatic field , because the high pressure and electrostatic is easy to damage the PCBA ,
causing the battery to be abnormal , heating, deformed , fuming or firing .
3) Charging Temperature Range
Recommended charging temperature range is 0--35 . If the charging temperature beyonds the℃
the range , it may cause lowering of the battery performance and life .
4) Manual
Before use, please read carefully the manual and read it in need.
5) Charge Way
Please use specific and recommended charge way, charge battery in recommended environment.
6) First use
If you find any abnormal situation occurred during your first use, such as unclean or odour etc, stop
useing it, then return the battery to its franchiser.
7) Use by Child
Before child use, parents should conduct them and monitor them whether the use is appropriate and
correct.
8) Be care of the leakage.
If skin or clothes contact to the battery electrolyte, please wash them in water to avoid skin discomfort.
9) Consultancy
While purchasing battery, please note the contact way of franchiser so that you can promptly contact
the franchiser to consult when you are in need.
10) Warranty period
Warranty period is from the ex-factory date for 12 months, the warranty longevity is 300
charge-discharge circles. If the malfunction is caused by abnormal use but not the quality problem,
even in the warranty period ,the manufacturer would not replace new one for free.
11) Assurance for Safety
If apply the battery to other devices, please contact the supplier for its protection function integrity.
13

SHENZHEN UTILITY POWER SOURCE CO., LTD
At lease you should consult for the questions of large current ,quick charging, special apply etc.
warning
1) Don't use with other batteries.
Don't use with other batteries, or it can cause heating, fuming, deformation or firing of the battery.
2) Keep the battery away from children.
Put the battery to a place where a child can not reach for avoiding them biting or swallowing the
battery. If the battery has been swallowed by him, promptly send him to hospital.
3) Don't charge for long time.
Stop charging the battery if it has been charged for much longer time than normal charging time.
Abnormal charging can cause heating, fuming, deformation or fir.
4) Don't transiently heat the battery in microwave oven or other pressure vessel. Corrupted structure
can cause heating, fuming, deformation or firing
5) Leaking battery can not be close to fire.
If leaking or smelly battery are found, it should be away from fire. Otherwise, the leaked electrolyte can
cause fire or even further damages.
6) Don't use abnormal battery
If there is any odour, deformation or distort, take off the battery from cellphone or charger and never
use it anymore. Using abnormal batteries can cause heating, fuming, deformation or fire
This li-ion battery type conforms to "Environmental material control standard" requirement.
14