6S 5A Lithium Battery Balancer

SKU: PH-BB-6S5A

$80.89

● 6S 5A battery balancer can function as a small battery management system (BMS) to balance the voltage of battery cells. ● Provides all-weather and uninterrupted protection, offering continuous and active balancing of the battery pack. ● Suitable for power lithium batteries and energy storage lithium batteries, with wide applicability in different configurations. ● Adopts a lightweight and user-friendly design, equipped with pre-drilled mounting holes for quick installation.

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Overview
Specs
Application
FAQ
Reviews

Overview

Tired of worrying about battery imbalance? Our 6S 5A lithium active balancer is your solution. While others are passive, our system actively monitors and manages every cell in real-time, transferring energy from high to low voltage cells. This not only prevents overcharging and deep discharging but also extends your battery pack's overall lifespan and ensures safety—giving you peace of mind with every use.

Feature

Continuous Smart Balancing: Operates automatically during charge, discharge, and rest.
Efficient Energy Transfer: Low energy consumption and heat, ideal for permanent installation.
Premium Components: High-grade capacitors and insulated base ensure safe, reliable performance.

Details

Designed for Quick Installation: Integrated pre-drilled and tapped holes allow for fast, secure mounting.
Error-Proof Connection: Features a keyed, reverse-polarity harness to prevent misconnection and guarantee a reliable fit.

6S 5A Battery Balancer Dimension

6S 5A Active Battery Balancer Dimension

6S 5A Battery Balancer Structure

6S 5A Active Battery Balancer Structure

6S 5A Battery Balancer Wiring Diagram

6S 5A Active Battery Balancer Wiring Diagram

Notes: Please solder and inspect the cable harness independently first. Only after confirming there are no errors should you plug in the balancing module.

Solder the Cable Harness: Start connecting the cable harness from the main negative terminal B-. Then, connect the second black wire (first red wire) to the positive terminal of the first battery string, and continue connecting to the positive terminals of each subsequent battery string in sequence, until the last red wire is connected to the main positive terminal B+.
Measure the Voltage: After connecting the entire cable harness, use a multimeter to check that the voltage of each string and the total voltage are within the normal range (3.0~4.15V for ternary lithium batteries, 2.5~3.6V for LiFePO4 batteries). If the voltage is abnormal, check for soldering issues such as cold solder joints, false soldering, or uneven solder points. Only after confirming the voltage is normal can you plug in the active balancing module.
Start Using: Active balancing module will activate automatically when powered on. If the cable harness becomes disconnected, you will need to power it off and on again to reactivate. The module will automatically start balancing when the voltage of any battery string is ≥3.1+0.1V and stop when it drops to ≤3.0+0.1V. The green indicator light will be on when balancing is active and off when it is inactive.

Specs

Model	PH-J06-5A
Battery Pack Type	Ternary, Iron Lithium
Number of Battery Pack Strings	6S (6 Batteries Connected in Series)
Balance Current	≤ 5A
Balance Mode	Active Equilibrium
Balance On Condition	First Single String Voltage: ≥3.1±0.1V
Balance Off Condition	Flat First Single String Voltage: ≤3.0±0.1V
Working Power Consumption	＜1mA
Sleep Current	＜100uA
Balance Accuracy	±mV
Working Temperature	-20℃~60℃
Harness	Compatible with BMS
Balance Indication Light	Bright: Balance On, OFF: Balance Not On or Fault
Dimension	976521mm

Application

Batteries of Energy Storage Cabinet

Batteries of RV

Lightweight Lithium Batteries

Power Lithium Batteries

FAQ

Q1: How to maintain your lithium battery balancer?

Regular maintenance preserves the battery balancer's accuracy and service life. Wipe the casing and clean connection terminals/connectors with a dry soft cloth to prevent dust, oxidation and poor contact. Inspect wires and connectors frequently for looseness, cracks or damage, and replace faulty parts promptly. Operate the balancer within its rated specs to avoid overheating, and store it in a dry, ventilated, dust-free area away from high temp, humidity and strong vibration. Power off the device when not in use to prevent internal part aging.

Q2: How to troubleshoot issues with lithium battery balancer?

Start by checking all connections for tightness and inspecting wires for looseness or damage, as poor wiring often disrupts balancing performance. Confirm the balancer is fully compatible with your battery type and voltage, then use a multimeter to test individual cell voltages and ensure they fall within the rated range. Next, verify the balancer's programming matches your battery pack specs, check for error codes or indicator light anomalies and refer to the user manual for solutions. If possible, test the balancer with a functional battery pack to eliminate device malfunction as a cause; if problems persist, please contact technical support, and replace faulty components or the entire unit if troubleshooting fails.

1 review(s)

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From: jcorrell | Date: 5/7/2026 1:18 AM

Best Battery Balancer

This 6S 5A active balancer is impressive! The 5A high-current balancing speed is super fast, quickly eliminating voltage gaps in my lithium battery pack. It’s compact, easy to install, and provides 24/7 active protection. Since adding it, my battery performance has significantly improved. A must-have for any DIY power or storage project!

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