The 6S 24V 10A Lithium Battery BMS with Balanced Charging is a compact, high-performance safety module designed to protect 6-cell (6S) lithium-ion battery packs from overcharge, over-discharge, and overcurrent conditions. With balanced charging and an integrated protection board, this BMS is engineered for moderate-drain applications including power tools, solar lighting systems, e-bikes, and energy storage systems where reliable battery safety and cell equalization are essential.
At the heart of the board is a BMS protection circuit that continuously monitors the voltage of each cell and the total pack current, disconnecting the load or charger if any parameter exceeds safe limits. This protects both the battery pack and your connected devices from damage, extending battery lifespan and ensuring safe operation.
The board provides three critical protection functions:
-
Overcharge protection — Disconnects the charger when any cell voltage reaches approximately 4.25V to 4.3V, preventing damage from excessive charging.
-
Over-discharge protection — Disconnects the load when any cell voltage drops to approximately 2.5V to 3.0V, preventing deep discharge that can permanently damage the battery.
-
Overcurrent protection — Disconnects the output when current exceeds 10A, protecting against short circuits and excessive loads.
The 6S configuration means the board manages six cells in series, balancing the voltage across all six cells to ensure they charge and discharge evenly. This cell balancing function is critical for maintaining pack health and maximizing lifespan. Without proper balancing, one cell can become overcharged or over-discharged, leading to premature failure or safety hazards.
The 6S configuration provides a nominal voltage of 22.2V and a full charge voltage of 25.2V, commonly referred to as 24V systems. This voltage range is ideal for power tools, solar lighting systems, e-bikes, and other applications requiring higher voltage than 5S packs.
The 10A continuous rating makes this board suitable for moderate-drain applications such as power tools, solar lighting, portable power stations, and e-bikes with lower current requirements. This provides reliable performance for a wide range of 6S applications where high current is not the primary requirement.
The board features a solder pad design that supports both direct soldering and spot welding. The exposed pads allow you to solder wires directly to the board, while also being compatible with spot-welded nickel strips for professional battery pack assembly. The board includes B+, B-, BM1 through BM5 (mid-points), P+, and P- pads for battery and output connections.
The wide application range includes:
-
Power tools — Moderate-current protection for drills, saws, and other tools
-
Solar lighting systems — Reliable power for solar street lights and garden lights
-
E-bikes — Protection for electric bicycles with lower current requirements
-
Energy storage systems — Protect 6S battery packs in solar storage
-
Portable power stations — Moderate-current protection for portable power
-
LED lighting — Reliable power for high-power LED lighting systems
Important Note: This BMS is designed for 6S (6-cell) 24V lithium battery packs with a maximum continuous current of 10A. For higher-current applications, a BMS with a higher current rating should be used. Always verify the voltage and current ratings match your application before installation. Ensure all wiring and connections are rated for the maximum current your application will draw.
Whether you are building a 6S battery pack for a power tool, assembling a solar lighting system, or adding safety protection to an energy storage system, the 6S 24V 10A Lithium Battery BMS provides a reliable solution. It is suitable for individual makers, students, and businesses purchasing in bulk for product development or educational programs.
Features
-
6S six-cell protection — Manages six cells in series with balanced charging
-
10A continuous discharge — Moderate-current capability for power tools and solar lighting
-
Balanced charging — Ensures even charge and discharge across all six cells
-
Comprehensive protection — Overcharge, over-discharge, and overcurrent protection
-
Integrated protection board — Compact, self-contained BMS solution
-
Wide voltage range — 22.2V nominal / 25.2V full charge (24V systems)
-
Solder pad design — Supports both direct soldering and spot welding
-
Wide application range — Power tools, solar lighting, e-bikes, LED lighting
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Compatible Battery | 6S 22.2V lithium-ion |
| 2 | Full Charge Voltage | 25.2V |
| 3 | Continuous Discharge Current | 10A |
| 4 | Overcharge Protection Voltage | ~4.25V – 4.3V per cell |
| 5 | Over-discharge Protection Voltage | ~2.5V – 3.0V per cell |
| 6 | Balanced Charging | Yes |
| 7 | Connection Type | Solder pads (spot welding supported) |
| 8 | Module Dimensions | Compact PCB for 6S packs |
