Active Battery Balancer

4S Active Balancer

Compatible with different cell counts, it supports continuous or timed balancing and delivers stable, durable performance.

check_circle High Voltage BMS
check_circle Cascaded BMS
check_circle 256S BMS
check_circle 900A BMS
  • verified CE / FCC / RoHS
  • support_agent Engineering Support

Product Specifications

Parameter Value
Supported Series LiFePO4 /NMC / NCA   4S / 4-13S / 4-24S
Models 504 / 804 / 513 / 813 / 524 / 824
Peak Balancing Current 5A / 8A
4S Models 504 (5A) / 804 (8A)
4-13S Models 513 (5A) / 813 (8A)
4-24S Models 524 (5A) / 824 (8A)
4S Size Without Enclosure 58 × 88 mm
4S Size With Enclosure 75 × 110 × 22 mm
4-13S Size Without Enclosure 155 × 100 mm
4-13S Size With Enclosure 120 × 120 × 22 mm
4-24S Size Without Enclosure 155 × 100 mm
4-24S Size With Enclosure 180 × 120 × 22 mm


Key Features

  • High-current battery balancing with 5A or 8A peak balancing current
  • Supports battery packs from 4S to 24S
  • Multiple models available for different battery configurations
  • Available with or without protective enclosure
  • Dedicated models available for LTO battery packs
  • Battery packs above 24S can use multiple balancing boards in cascade for whole-pack balancing

Core Technology

Monitor, protect, balance and estimate — closed-loop pack control.

  1. 01 · Monitor

    Cell voltage, pack current and temperature sampled continuously for live protection and SOC.

  2. 02 · Protect

    OV / UV / OC / OT and short-circuit cutoffs isolate the pack before runaway risk.

  3. 03 · Balance

    Passive balancing reduces cell drift and recovers usable capacity on series strings.

  4. 04 · Estimate

    SOC/SOH maps remaining energy for vehicle, inverter or App — optional event logs.

Ready to integrate this BMS?

Share pack config, chemistry and duty cycle — reply within 24h.

Request Quote