Product Description :
3S 40A 9.6V 10.8V 18650 LiFePO4 BMS/iron lithium battery protection board with equalizing startable drill Standard/balance
3 S10.8V 40A lithium iron battery protection board (with recovery function -AUTO Recovery)
Scope of application: Suitable for nominal voltage 3.2V, full-voltage 3.6V iron-lithium batteries (including 18650, 26650, lithium polymer batteries, there is no limit on the size)
Product Size: 41*55*3.4mm (Standard Edition), 41*60*3.4mm (Balanced Edition)
Product Weight: 8.6g (Standard Edition), 9.4g (Balanced Edition)
Charging voltage: 10.8V - 12V
Continuous discharge current (upper limit): 40A (If the cooling environment is not good, reduce the load current use)
Continuous charge current (upper limit): 20A
Standard Version: Suitable for electric drills with a starting current of 80A or less and power of 150W or less.
Balanced Version: Suitable for electric drills with a starting current of 80A or less and power of 150W or less, with a balanced charging function.
Note 1: The successful start of electric drill requires three 15C-20C power batteries, or six 10C-15C power batteries (ordinary 18650 can not start drill! ! !).
Note 2: Connect 0V, 3.6V, 7.2V, and 10.8V according to the diagram strictly. Do not intentionally short circuit.
Note 3: When the battery is charged, the "360" resistance heating is normal, indicating that the equalizing circuit is working; if the "360" resistance is also heating in the non-charging state, please check whether the wrong wiring is connected.
For some customers with poor electronic foundation, please explain: Don't mix good battery and bad battery together! The capacity/internal resistance of the 3 groups of batteries is as close as possible! (2 good batteries + 1 bad battery use effect = 3 battery use effect).
The conditions for successfully starting the drill:
1, need three 15C-20C power batteries or six 10C-15C power batteries (ordinary 18650 can not start drill)
2. The distance between the battery pack and the protection board should be as short as possible and the core should be as thick as possible.
3, When welding the battery for the first time, do not connect any output and equipment to the output.
4. If you still cannot start, please contact us first.
Brand Name: Heltec Automation