4S 40A 18V 16.8V Lipo Cell Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance for Drill Motor High Efficiency Module Accessories Accessories

Description

If you have any questions about the product, please contact us in time.

If you have any quality problems, please feel free to contact us and we will provide you with the most satisfactory answer.

Feature:

4 string 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)

Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)

Product Size: 45 * 55 * 3.4mm (Standard Edition / Enhanced), 46 * 60 * 3.4mm (balanced version)

Product weight: 9.3g (standard / enhanced version), 10.3g (balanced version)

Charging voltage: 16.8V – 18.1V

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

Equalization version: suitable for starting current below 80A, power 135W below the drill.

Project Min. Typ. Max. Units

Consuming current 12 18 24 uA

Overcharged protection voltage 4.2 4.25 4.3 V

Balanced starting voltage 4.17 4.2 4.23 V

Equilibrium current 95 100 105 mA

Balanced heating power 1.56 1.72 1.91 W

Overcharge recovery voltage 4.1 4.15 4.2 V

Over-discharge protection voltage 2.4 2.5 2.6 V

Overvoltage protection after over-discharge protection 2.8 3 3.2 V

Overvoltage protection after over-discharge protection 3.2 3.5 3.8 V

Over-discharge recovery voltage 2.9 3.2 3.3 V

Conduction internal resistance 2.5 3 3.5 mQ

Overcurrent protection current C 70 80 90 A

Overcurrent delay time 100 150 200 ms

Continuous operating current 0 40 40 A

Continuous output power 0 672 672 W

Ambient temperature -40 25 85 °C

Troubleshooting:

Fault phenomenon Fault check and cause The solution

Unable to charge Me