12.6V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)Scope: Nominal voltage of 3.7V lithium battery (including 18650,26650, polymer lithium battery)Product Size: 41 * 55 * 3.4mm (Enhanced Version)Charging voltage: 12.6V - 13.6VContinuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current )Continuous charge current (upper limit): 20AColor: greenMaterial: PC + metalEnhanced version:Suitable for electric drill with starting current below 80A and below 130W .(without balanced function)Note 1: To successful starting the drill requires three 15C-20C batteries, or six 10C-15C batteries (ordinary can not start the drill ).Note 2: When you wiring 0V, 4.2V, 8.4V, 12.6V, please do it strictly according to the wiring diagram.Do not deliberately make it short circuit.Note 3: When the battery is charging,the "430" heating is normal,it means the balance circuit is working.If the "430" is also heating without charging,please check if the wrong wire is connected.Note 4: Do not use a mix of good battery and poor battery,please make each battery is the same in capacity and internal .For some of the poor basis of electronic customers to explain: balanced charge is only auxiliary functions, try not to put a good battery and poor battery mixed together 3 sets of battery capacity / closer to the better (2 good battery +1 Poor battery use effect = 3 poor battery use effect).Package Include:1* Enhanced version PCBOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.