Features: Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit); Low standby current consumption. MOS transistor can control the battery charge and discharge; 100% brand new and high quality 3S 25A11.1Vlipo lithium Polymer BMS/PCM/PCB battery protection board for 3 Packs 18650 Li-ion Battery Cell with balance function3S 25A 12.6v li-ion BMS PCM battery protection board bms for lithium LicoO2 Limn2O4 18650 li batterywith balance functionthis board with balance function, battery should have good consistency, if not sure, please use new brand battery. This board not suit electric tools, because over current is too small,if your application is high current application, like screwdriver and drill, please do not buy, should select our other high current BMS. With high-accuracy voltage detection circuit; terminal of the charger using high voltage device; Package Includes: 1 PC x Battery Protection Board 1 PC x Manual Specifications: Model:HX-3S-FL25A-A Over Discharge: 2.3V-3.0V Over Charge : 4.25V-4.35V Continous Current: 25A Over Current: 38A Balance Voltage: 4.2V Balance Current: 50mA Size: approx 56mmx45mmx4mm/2.2x1.77x0.16in note: Please pay attention to the use condition of input and output voltage and load current , make the protective plate within the power consumption of no more than specification allows power consumption; Connect the battery will happen cannot discharge status, in this case, connect the charge can be restored to normal working state; If a set of batteries with over-discharge and over-charge cells, the bms cannot be charge and discharge.