3.7V 4000mAh Wide Temperature Lithium Ion Battery Design Scheme of Traffic Police Law Enforcement Recorder

APR 19, 2019   Pageview:403

Traffic police law enforcement recorder is the law enforcement facility for government functionary to record the activities on the scene of accidents. It has multi-function of communication, intercom, photography, positioning, video recording, etc. which greatly improves the work efficiency of law enforcement officer. Spare lithium ion battery of traffic police law enforcement recorder has safe, stable, reliable and continuous power supply.


application vironment


 ■indoor    ■outdoor

 operating temperature/humidity

-30~70℃;40~60%RH

storage temperature/humidity

-20~60℃;50~90%RH

special performance

 

the requirements of charging and discharging under high-temperature & low-temperature

0~50℃;-30~70℃

Charge at 0~50℃;

Discharge at -30~70℃

expiration date

 One year

explosive-proof grade

 ( Ex Type)/group of equipment/group of gas/ group of temperature

waterproof grade

                IP96

dustproof grade

                /

dropping frequency

                /

application features

 

operating voltage

                3.2~4.2V

capacity

                4000mAh

working hours

                180mins

dimension

80.5×49.5×10.75mm

operating current

                1.0A

maximum starting current

6-8A10ms

6-8A starting time:10ms

maximum continuous operating

                1.5A

frequency and time

frequently

capacity management

communication mode□SMBUS□I2C□HDQ

certification and environmental requirement of finished products

                GB31241-2014(CQC),RoHS

                schematic design

battery specification

                954674P/1S1P/4000mAh/3.7V

cell model

                954674P/4000mAh/3.7V

guard plate and hardware configuration

                IC

                S-8252AAH

                MOS

                AO8820

                PTC

                no

                NTC

                no

                other


encapsulation mode

fundamental protection□PVC+non-fundamental protectionhousing+fundamental protectionhousing+non-fundamental protection

key parameters

 

nominal voltage

       3.7V

nominal capacity

       4000mAh

dimension

      80.5×49.5×10.75mm

internal resistance

                ≤180mΩ

weight

                95g

charging current

                0.8A

continuous discharge current

                0.8A

protective current

                6-8A

charging voltage

                4.2V

End-off voltage

                3.0V

cycle life

0.5C,≥300次

Charging and discharging requirements: charge at 0.5c, discharge at 0.5c

over 300 cycles

charging temperature

         0~45℃ 

discharging temperature

        -30~70℃ 

storage temperature

  -20~30℃(less than six months)

temperature protection

           /±/℃

key features

1、Discharge 0.2C at -30℃, and capacity retention ratio is over 30%

2、Can work at 70℃ as usual

3、IP96 waterproofing grade

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