18650 3 series 11.1V 12V 12.6V lithium battery protection board start drill 20A
3 string of 12.6V 20A lithium battery protection board (with recovery function -AUTO Recovery)
Feature :
Lithium battery with nominal voltage of 3.6V and 3.7V (including 18650, 26650, polymer lithium battery)
- Product size:59x20x3.4mm
- Product weight: 4.3g
- Charging voltage: 12.6V - 13.0V
- Continuous discharge current (upper limit): 20A (If the cooling environment is not good, reduce the load current use)
- Continuous charge current (upper limit): 10A
- Standard Edition: Suitable for electric drills with a starting current of less than 40A and a power of 65W or less.
- Enhanced version: Suitable for electric drills with starting current less than 60A and power less than 100W.
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, 4.2V, 8.4V, and 12.6V according to the diagram strictly. Do not intentionally short circuit.
Note 3: When using a load with a brush motor type, a non-polarity capacitor must be connected in parallel with the positive and negative terminals of the motor (voltage resistance 25V or more, capacity 10uF-100uF) to prevent reverse voltage spikes generated by the motor from interfering with the protection board or Break through the MOS tube.
Note 4: When connecting 3 batteries in series, please make sure that the voltage of each battery is the same. If not, please fill each battery separately and use it in series. . . In the discharge test, the battery with the faster voltage drop is the bad battery.
For some customers with poor electronic foundation, please explain: Don't mix good battery and bad battery together! The capacity/internal resistance of 3 groups of batteries is as close as possible! (The use effect of 2 good batteries + 1 bad battery = 3 battery use effect).