The traffic police law enforcement recorder is the law enforcement equipment for the public officials to record the on-site activities of the accident.There are many functions such as communication, speaking, photographing, positioning, recording and recording, etc. The multi-function equipment greatly improves the efficiency of law enforcement personnel.Police law enforcement recorder backup lithium battery needs to provide safe, stable and reliable continuous power supply.

In the application of environmental applications, it is outdoors in a room.

Working temperature/humidity - 30 ~ 70 ℃;40 ~ 60% RH

Storage temperature/humidity - 20 ~ 60 ℃;50 ~ 90% RH

Special performance charging high charge and discharge in low temperature 0 ~ 50 ℃;- 30 ~ 70 ℃ discharge

Shelf life 1 year.

Explosion-proof grade Ex(/ explosion-proof type)/equipment group/gas group/temperature group.

Waterproof class IP96.

Dust level /

Fall times /

Operating voltage range of power voltage is 3.2 ~ 4.2V.

Battery capacity: 4000mAh.

The working time is 180 minutes.

Battery size: 80.5 x 49.5 x 10.75mm.

Normal working current 1.0a.

Maximum starting current 6-8a starting time 10ms.

Maximum continuous working current 1.5a.

Frequent use of electricity frequency and time.

Electric quantity management communication mode.

Product certification and environmental protection requirements gb31241-2014 (CQC), RoHS.

The project design

The battery specification 954674 p / 1 s1p / 4000 mah / 3.7 V

Electric core model 954674P/4000mAh/3.7V.

Protection board and hardware configuration IC s-8252aah.

MOS AO8820

PTC without

The NTC has no

other

Encapsulation form: basic protection class, PVC+ non-basic protection class, shell + basic protection class, shell + non-basic protection class.

The main parameter is nominal voltage 3.7v.

Nominal capacity of 4000mAh.

Battery size: 80.5 x 49.5 x 10.75mm.

Battery internal resistance ? 180 m or less

Battery weight 95g

Charging current

Continuous discharge current: 0.8a.

Protective current 6-8a.

Charging voltage 4.2V

Discharge cut-off voltage 3.0v.

The charging and discharging conditions of the service life are 0.5C and 0.5C, or more than 300 times.

Charging temperature 0 ~ 45 ℃

Discharge temperature - 30 ~ 70 ℃

Storage temperature - 20 ~ 30 ℃ (less than 6 months)

To protect / + / ℃ temperature

The main features

1. Low temperature -30 degree 0.2C discharge capacity retention rate of over 60%.

2. Support normal work under high temperature 70 degrees.

3. IP96 waterproof grade.