2 S Li - Ion 18650 ที่ชาร์จ 7 . 4 V Overcurrent Overcharge Overdischarge 4a 2 Series Bms 2S Li-ion 8650 7.4V 4A

2S Li-ion 18650 Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection 4A 2 Series BMS

Features:
1.High-precision voltage detection function for each battery;
2.3 overcurrent detection function;
3.Wide operating temperature range: -40 ° C ~ +85 ° C;
4.Low current consumption
5.Through the MOS tube can control the battery charge and discharge;

Specifications:

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

2. Current ：Single current consumption (consumption) ≤6uA
Maximum sustained discharge current:4A

3. Overcharge protection
Overcharge detection voltage:4.29V Accuracy ≤±0.025V
Overcharge detection delay time:1s
Overcharge recovery voltage:4.05V Accuracy ≤±0.025V

4. Over-discharge protection
Over-discharge detection voltage:3V Accuracy ≤±0.1V
Over-discharge detection delay time:128ms
Over discharge recovery voltage:3.2V Accuracy ≤±0.1V

5. Over-current protection
Overcurrent detection voltage:200mV
Overcurrent detection current:9.8A
Overcurrent delay time:12ms
Recovery Status: Auto Recovery

6. Short-circuit protection
Detection status:external short circuit
Detection delay time:≤ 50us
Recovery Status:Auto Recovery

7. Internal resistance:protection circuit:(MOSPET) ≤ 21mΩ

8. Temperature
Operating temperature range:-40 ° ~ +80 °
Storage temperature range:-40 ° ~ +125 °

Product size: about 3.50*1.70cm/1.38"*0.67"

Wiring:

· B+ is connected to the positive pole of the battery;

· MB connects to the contacts in battery 1 and battery 2;

· B- Connect the negative pole of the battery;

· P+ is connected to the positive electrode of the charge/discharge terminal (the charge terminal/discharge terminal is shared);

· P- connect to the negative pole of the charge/discharge terminal (shared with the charge terminal/discharge terminal).

Precautions:

1. Please pay attention to the use conditions of input and output voltage and load current, so that the power consumption in the protection board does not exceed the allowable power consumption of the specification;

2. When the battery is connected, it may not be able to discharge. In this case, it can be restored to normal working status after connecting and charging;

3. When the overcharged battery and the overdischarged battery are mixed together, it becomes the charged state and the overdischarged state, and it is impossible to charge and discharge;

4. Although this protection board has a built-in anti-static protection circuit, please do not apply excessive static electricity to the protection board that exceeds the circuit performance of the protection board.

Package Included:
1pcs * 2S Li-ion 18650 Lithium Battery Charger Protection Board





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