3S Li-Ion 18650 BMS Protection Board 12V 10A | 11.1V–12.6V

3S Li-Ion 18650 Battery Management & Protection Board – 12V 10A BMS

Keep your 3-cell lithium-ion battery packs running safely and efficiently with this compact 3S BMS (Battery Management System) Protection Board. Designed for 18650 Li-ion cells configured in a 3-series arrangement, this board handles charging voltages of 12.6V–13V and is compatible with both 11.1V nominal and 12.6V fully charged battery packs. Rated at 10A continuous discharge, it is an ideal solution for DIY power banks, alarm systems, e-bike packs, solar storage, and other lithium battery projects.

Made in Mainland China.

Key Features

• 3S Configuration: Designed for three 18650 Li-ion cells in series (11.1V nominal / 12.6V fully charged)
• 10A BMS Included: Handles up to 10A continuous discharge current with built-in protection circuitry
• Charging Voltage: Compatible with 12V chargers; charge input range 12.6V–13V
• Wide Operating Temperature: Functions reliably from -40°C to +85°C
• SMD Package: Surface-mount design for a compact, low-profile footprint
• Overcharge, Over-discharge & Short-circuit Protection: Safeguards your cells and connected devices
• Condition: Brand new, customizable configuration available
• Application: Alarm systems, DIY battery packs, power tools, solar storage, RC vehicles, and more

Specifications

What's Included

• 1 × 3S Li-Ion BMS Protection Board (10A)

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Frequently Asked Questions

Q: What battery configuration is this 3S BMS protection board designed for?

A: This board is designed for a 3-series (3S) lithium-ion 18650 battery configuration, giving a nominal voltage of 11.1V and a fully charged voltage of 12.6V. It works with a charger output in the 12.6V–13V range.

Q: What current rating does this BMS board support?

A: The BMS protection board supports up to 10A of continuous discharge current, making it suitable for a wide range of DIY electronics, alarm systems, power tools, and portable battery projects.

Q: Does this board protect against overcharge and short circuits?

A: Yes. The integrated protection circuitry guards against overcharge, over-discharge, and short-circuit events, helping to extend battery life and protect connected devices.

Q: Is this BMS board suitable for outdoor or harsh environments?

A: With an operating temperature range of -40°C to +85°C, this board is well-suited for demanding environments, including outdoor and industrial applications.