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3.6V 2000mAh Anti-explosion Lithium Ion Battery Design Solution of Handheld POS Machine

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3.6V 2000mAh Anti-explosion Lithium Ion Battery Design Solution of Handheld POS Machine

April 5, 2021
Latest company case about 3.6V 2000mAh Anti-explosion Lithium Ion Battery Design Solution of Handheld POS Machine


POS (point of sale) is a multi-function terminal assembled in contributing businesses of credit card and its accepting network to connect the computer as network. In this case, it can transfer electronic funds automatically, including the functions of consumption, pre-authorization, balance enquiry and transfer accounts. Its application expands from POS system to the whole supply chain.


application environment place □ indoor ■outdoor
operating temperature/humidity 0~45℃;30~85%RH
storage temperature/humidity 0~45℃;30~85%RH
special performance the requirements of charging and discharging under high-temperature & low-temperature

Charge at 0 ~ 45 ℃;

Discharge at -20 ~ 60 ℃

other requirements expiration date One year
explosive-proof grade Exib iiB T4
waterproof grade IP97
dustproof grade IPxx
dropping frequency /
application features operating voltage 3.0~4.2V
capacity 2000mAh
working hours


2.5 hours (within 50 cycles)

dimension MAX:52.3*49.5*12mm
operating current 800mA
maximum starting current 2.8A starting time 20ms
maximum continuous operating current 2A
frequency and time frequently
capacity management /
certification and environmental requirement of finished products types ■GB31241-2014(CQC) □CE
□UL2054 □CB
□un38.3 □RCM
□component verification □BIS
□RoHS □battery directive
□halogen-free other: explosion-proof certification
schematic design project No. 05BQ1088-03
specification 103443/2000mAh/3.6V
model 103443/2000mAh/3.6V
guard plate and hardware configuration IC bq27541V200+R5402N101KD-TR+LTC4361TSTB
MOS AO8810 *3
other /
encapsulation mode □ fundamental protection □PVC+non-fundamental protection □ housing+fundamental protection ■housing+non-fundamental protection
key parameters nominal voltage 3.7V
nominal capacity 2000mAh
dimension 67.5*37.5*20.5mm
internal resistance ≤150mΩ
weight 80G
charging condition 0.4A
continuous discharge current 0.8A
protective current Discharge 5-8A
short circuit current Discharge 2.9-3.1A (delay time: 10uS)
charging voltage 4.2V
End-off voltage 2.5V
cycle life

Charging and discharging requirements: charge at 0.2c, discharge at 0.2c

When leave 60% capacity, the cycle life is over 300 times.

charging temperature 0~45℃
discharging temperature -20~60℃
storage temperature -15~30℃
temperature protection /
key feature


High energy density and high capacity

2、Exib iiB T4

Explosive-proof grade: Exib iiB T4


Waterproof grade: IP97

Contact Details
Unitech Energy System Limited

Contact Person: Mrs. Olinda

Tel: +86-181 2856 1764

Fax: 86-755-23449332

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