ITEM NAME:2X(4S 6A 14.8V Lithium Li-Ion 18650 Battery Bms Packs Circuit Protection PcI6U4) 2X(4S 6A 14.8V Lithium Li-Ion 18650 Battery Bms Packs Circuit Protection PcI6U4) 2X(This protection board can not be used for lithium iron phosphate battery, hernia lamp, hand electric drill battery group, electric fish battery group, electric bicycle battery group, children's car battery, 775 (4A) motor and 1W fish eye LED lamp. Application:Low power converter, massager battery pack, LED lamp backup power, electronic products, solar street lamp battery, monitoring standby power supply, and other products. Note: the discharge rate of 3A is higher than 3C.Rate formula: 1C multiplying battery, 2000 capacity equal to 2AH * 1=2A upper limit working current. 3C multiplying battery, 2000 capacity equals to 2AH * 3=6A upper limit working current. If The battery rate is not applicable when use, the battery will be heated,This