BMS 5S 21V 15A Li-ion Protection Board (Balanced)
Prices updated: 13 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Most Electronics | BMS 5S (21V 15A ) Lithium Battery Protection Module ( Balanced ) | 125 EGP189 | View in store |
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Lowest price recorded: 125 EGP
About this product
A 5-cell (5S) Li-ion battery protection and balancing board for 18650 packs, rated for a 21V charge voltage and 15A continuous discharge. It protects the pack against overcharge, over-discharge and overcurrent, and balances the cells during charging. Typical uses include DIY battery packs for power tools and portable electronics.
Specifications
- Cell configuration
- 5S (5 Li-ion cells in series)
- Charging voltage
- 21 V
- Continuous discharge current
- 15 A
- Over-current protection
- 50/55/60 A
- Over-current protection delay
- 20/25/30 ms
- Charge MOS voltage rating
- 35 V
- Power consumption per cell section
- 30 µA
- Size
- approx. 60 x 23 mm
Frequently asked questions
What is the price of BMS 5S 21V 15A Li-ion Protection Board (Balanced) in Egypt?
BMS 5S 21V 15A Li-ion Protection Board (Balanced) currently costs 125 EGP in Egypt.
Where can I buy BMS 5S 21V 15A Li-ion Protection Board (Balanced) in Egypt?
BMS 5S 21V 15A Li-ion Protection Board (Balanced) is available from Most Electronics. Compare the offers above to find the best price.
What battery type is this BMS for?
It is designed for 5-cell series Li-ion packs (5S), such as 18650 cells. Do not use it with a different cell count, because its voltage thresholds are set for 5S.
How is it wired to the cells?
Connect each balance lead to the junction between two cells, in order from the negative end, and connect the main B- terminal to the pack negative, following the markings on the board. Check the wiring before connecting the charger, since wrong balance wiring can damage the board or the cells.
