5S 15A 18650 Lithium Battery Protection Board


In stock

SKU: 618348
  1. Continuous discharge current: 15A(max)
  2. Instantaneous discharge current: 25A
  3. Charge voltage: 21V
  4. Charging current: 15A(max)
  5. Overcharge Protect:
  6. Over-charge detect: 4.28±0.05V
  7. Protect delay: 0.5s
  8. Over-charge release: 4.28±0.05V
  9. Working current: ≤30uA
  10. Sleep current: (when over-charge)≤10uA
  11. Working Temperature Range: -30-+80


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Brand: Generic
Category: Battery Protection Board
Tags: 5S 25A BMS

5S 15A 18650 Lithium Battery Protection Board is designed to monitor the status of batteries, control the process of charging/discharging the battery etc.

Five batteries (18650) can be connected simultaneously to this charge-discharge controller module. The module has protection against short circuit, overcharge and over-discharge. One of the functions of the charge controller is to turn off the power supply for the batteries when the maximum capacity of at least one battery is reached. This BMS controller is designed for more than 30,000 hours of operation. The maximum allowable current is 25 A.

If the maximum permissible value of the supply voltage is exceeded, the charge controller activates the “protection” mode. In order to restore the module, it is necessary to re-apply voltage to the input of the BMS board or wait a while until the charge controller automatically disables protection.


  1. Small size designed for a four-cell battery pack.
  2. Simple and  convenient circuit for easy connections
  3. Over-charge/Over-discharge Protection.

Package Includes:

1 x 5S 15A 18650 Lithium Battery Protection Board

SKU: 618348 Category: Tag:
Charge voltage


Charging current


Continuous Discharge Current


Instantaneous discharge current


Over-charge detect


Protect delay


Over-charge release


Over-discharge Protect

Over-discharge detect: 2.55±0.08V
Over-discharge detect delay: 0.1s
Release voltage: 2.9±0.1V

Short-circuit Protect

Protect condition: Cut load
Detect delay: 250uS
Release condition: Cut load

Over-current Protect

Detect voltage: 150mV
Detect delay: 9MS
Current detect: 30±3A
Release condition: Cut load
Inner Resistance: ≤20mΩ


Working current: ≤30uA
Sleep current: (when over-charge)≤10uA
Working Temperature Range: -30-+80

Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.02 kg
Shipping Dimensions 10 × 3 × 2 cm

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5S 15A 18650 Lithium Battery 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