3S 40A Battery Management System BMS – Enhanced Version

Description

Enhanced version: for starting current below 80A, power 135W below the drill.
3S 12.6V 40A lithium battery protection board
Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
Product Size: 42 * 55 * 3.4mm (Standard Version / Enhanced Version), 42 * 60 * 3.4mm (Balanced version)
Product weight: 8.8g (standard / enhanced version), 9.8g (balanced version)
Charging voltage: 12.6V – 13.6V
Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)

Continuous charge current (upper limit): 20A

Note 2: strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, do not deliberately short circuit.
Note 3: When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above 25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.

Note 4: 3 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. The The Discharge test, the voltage drop faster battery that group is poor battery.

Note: balanced charge is only auxiliary functions, try not to put a good battery and bad battery mixed together! 3 sets of battery capacity / resistance closer to the better! (2 good battery 1 Poor battery use effect = 3 poor battery use effect).