Dual-string protection Chip Overcurrent protection Overvoltage protection 4A 7.4V 2string 18650 Lithium Battery protection Board

Product Description:

1. Product Features:

1. Each battery voltage detection function is of high precision;

2. Overcurrent detection function;

3. The battery charging and discharging can be controlled through MOSFET;

4. The operating temperature range is wide: 40°C - 85°C;

5. Low current consumption.

II. Product Specifications:

1. Charging voltage: DC 9V CC / CV (maximum: 12V)

2. Current

Single current consumption (consumption) ≤ 6uA

Maximum continuous discharge current: 4A

3. Overcharge protection

Overcharge detection voltage: 4.29V with an accuracy of ≤ ±0.025V

Overcharge detection delay time: 1 second

Overcharge recovery voltage: 4.05V with an accuracy of ≤ ±0.025V

4. Overdischarge protection

Overdischarge detection voltage: 3V with an accuracy of ≤ ±0.1V

Overdischarge detection delay time: 128ms

Overdischarge recovery voltage: 3.2V with an accuracy of ≤ ±0.1V

5. Overcurrent protection

Overcurrent detection voltage: 200mV

Overcurrent detection current: 9.8A

Overcurrent delay time: 12ms

Recovery state: Automatic recovery

6. Short circuit protection

Detection state: External short circuit

Detection time: ≤ 50us

Recovery state: Automatic recovery

7. Internal resistance: Protection circuit: (MOSFET) ≤ 21m

8. Temperature

Operating temperature range: 40°C ~ 80°C

Storage temperature range: 40°C ~ 125°C

Product size: 3.50×1.70cm / 1.38"×0.67"