5S 40A 18650 Li-ion Lithium Battery Charger Protection Board


In stock

SKU: 618351
  1. Charging current: 25A
  2. Discharging Current: 25A
  3. Charging voltage: 21V
  4. Single Cell overcharge protect voltage: 4.23 – 4.28V
  5. Overcharge Protect Delay: 0.5 – 1.5S
  6. Single Cell over-discharge protect voltage: 2.72 – 2.88V
  7. Single Cell over-discharge protect recover voltage: 2.9 – 3.1V
  8. Overcharge/Discharge Protect Current: 60A


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Brand: Generic
Category: 5S Li-ion BMS
Tags: 5S 40A BMS

This Battery protection board can be used for high current applications as a lithium battery protection board, which is suitable for large current draining equipment up to 40A at pick such as electric tools, motors, electric drills, etc.

Connection Diagram:

Generic 3S 4S 5S Bms Connection Diagram

Note: The Circuit/Connection Diagram is for illustration purpose, may differ from actual product

Package Includes:

1 x 5S 40A 18650 Li-ion Lithium Battery Charger Protection Board

SKU: 618351 Category: Tag:
Charging voltage (V)


Single Cell overcharge protect voltage

4.23 – 4.28V

Overcharge Protect Delay

0.5 – 1.5S

Single Cell over-discharge protect voltage:

2.72 – 2.88V

Single Cell over-discharge rotect recover voltage

2.9 – 3.1V

Overcharge Protect Current


Over-discharge Protect Current:


Charging current


Discharging Current:


Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.005 kg
Shipping Dimensions 6 × 6 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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5S 40A 18650 Li-ion Lithium Battery Charger Protection Board

What is Battery Management System? – BMS Building Blocks, Working & Functions

A Battery Management System AKA BMS ensures the safety of the battery pack by continuously monitoring and regulating parameters like temperature & voltage.

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Country Of Origin: China