HX-4S-A01 4S 10A Li-ion 18650 Battery Protection BMS Board
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Prices updated: 13 Oct 2026
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About this product
A 4-series (4S) lithium-ion battery protection board rated at 10A, designed for 18650 cell packs. It uses a precision integrated circuit to provide overcharge, over-discharge and short-circuit protection for a four-cell pack.
Specifications
- Cell configuration
- 4S (4 series Li-ion cells)
- Rated current
- 10A
- Cell type
- Li-ion 18650
- Nominal pack voltage
- 14.8V
- Full charge voltage
- 16.8V
- Protections
- Overcharge, over-discharge, short circuit
- Model
- HX-4S-A01
Frequently asked questions
How should the balance leads be connected?
Connect the balance leads in order, from the negative end of the pack to the positive end, matching each lead to the cell junction labelled on the board. Check each cell voltage before connecting the board to avoid damage.
Can it be used with LiFePO4 cells?
The board is designed for 4-series lithium-ion cells. LiFePO4 cells have different voltage limits, so a board made for LiFePO4 should be used instead.
