Mini USB BMS 5V 1A 18650 Lithium Battery Charger Board with Protection Functions (10002984)
100% brand new and high quality
Charge module: Linear charging.
Current: 1A not adjustable.
Charge precision: 1.5%.
Input voltage: 4.5V-5.5V.
Full charge voltage: 4.2V ± 1%
Led indicator: red is charging Green is full charged.
Input interface: Mini USB
Work temperature: -10° to +85°.
Reversed polarity: NO.
Protection About Mini USB module:
The battery overcharge protection voltage: 4.28 V
Battery overcharge lifting voltage: 4.00 V
The battery discharge protection voltage: 3.0 V
Battery discharge termination voltage: 3.2 V
Battery: over-current protection current 3 a
1. Ampere meter can only be connected to 5v input end of the module.
2. It is better that the charging current is 37% of the battery capacity. If you charge to the battery of 1000mAH, current of 400 is enough.
3. The connection wire should not be too thick.
4. Make sure the connect point is good.
5. If the input voltage is too high, like 5.2v, the current will be less than 1000mA, it is normal. It is protection function, auto-substract the charging current to avoid burn damage to chip.
6. NO Reverse polarity.
1 pc Lithium Battery Charger