3pcs 2S 7.4V 4A 18650 Lithium Battery Protection Board Double String Protection Chip With Over-Charge Over-Discharge Ove

Features:1. Built-in high-precision voltage detection circuit;2. The terminals which are connected with the charger adopt high voltage devices;3. Built-in three over-current detection circuits (over-current 1, over-current 2, load short-circuit);4. Can control the battery charge and discharge through the MOS tube;5. Wide operating temperature range: -40C to + 85C;6. Low current consumption.7. The protection board uses lithium-ion polymer rechargeable battery to protect IC.8. Charging voltage: DC 9V (12V Max)9. Maximum continuous discharge current: 4A10. With over-charge protection, over-discharge protection, over-current protection and short circuit protection function.11. 2pcs 18650 lithium batteries in series, can also be used for polymer lithium battery.12. Size: 34.45 x 16.22 x 1.47mm (L x W x H)Package included:3 x 18650 lithium battery protection board