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1S BMS 18650 Li-ion Lithium Battery Charging Protection Board 3.7V 2A/3A/4.5A/6A/7.5A/9A 1/2/3/4/5/6 Mos

SKU: ML2272

In stock

1S BMS 18650 Li-ion Lithium Battery Charging Protection Board



Long-lasting discharge current: 2A-9A
Single-cell consumption battery (self-consumption): ≤3uA
Charging voltage: 3.7V
Charging current: 2A-9A
Overcharge protection:
Overcharge detection voltage: 3.7±0.05V
Overcharge protection delay: IS
Overcharge release voltage: 3.7±0.05V
Power balance:
Battery balance detection voltage: /
Battery balance release voltage: /
Battery equalization current: i
Over discharge protection:
Over-discharge detection voltage: 2.0-2.1V
Over-discharge detection delay: lO0mS
Over discharge release voltage: 2.3±2.1V
Overcurrent protection:
Overcurrent detection voltage: 200±25mV
Overcurrent detection delay: 10mS
Overcurrent detection current: 2A-9A
Overcurrent protection release condition: automatic recovery
Short circuit protection:
Short circuit protection condition: External load
short circuit Short circuit detection delay: 250uS
Short circuit protection release condition: Disconnect load
Temperature protection:
Temperature protection: / Internal resistance: main circuit
conduction internal resistance: ≤20 Self-consumption: Working
current: ≤20 Sleep current (current over discharge): ≤20
Operating temperature: Temperature range: -20 -40 °C
Precautions: Before installing the protection board, the battery should be matched well (the voltage difference between each
battery should not be 0.05V, the internal resistance difference is not more than 5mQ, and the tolerance difference is less than 30mAh). The smaller the battery voltage difference is, the better the protection board will work. The batteries are connected in parallel and then connected in series, and the welding is correct (18650 battery nickel spot welding, other batteries are soldered), do not screw, easy to burn the protection board IC. If it is an old battery change board, please pay attention: Please confirm whether the battery is normal before buying. When installing, use a multimeter to check whether each string of battery voltage is the same? The performance failures with a difference of more than 1.0V are: running not far, starting and powering off, charging time is short, basically the battery core problem is more. The failure of the protection board is as follows: the battery cannot be charged, and the battery has a voltage and cannot be discharged.

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