2S 5A 8.4V BMS Protection Board for 18650 Li-ion Battery Packs
Prices updated: 14 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Most Electronics | BMS 2S (7.4V -5A ) Lithium Battery Protection Module | 39.9 EGP47.42 | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 39.9 EGP
About this product
A 2-series battery management system board for 18650 Li-ion packs, rated for 5A maximum working current and 7A transient current. It monitors the cells and protects the pack from overcharge and over-discharge, with detection voltages of 4.25 to 4.35V and 2.3 to 3.0V. Use it to protect 2S packs in DIY battery builds and portable electronics.
Specifications
- Cell configuration
- 2S
- Input voltage
- 8.4 – 9V
- Overcharge detection voltage
- 4.25-4.35V ±0.05V
- Over-discharge detection voltage
- 2.3-3.0V ±0.05V
- Max working current
- 5A
- Transient current
- 7A
Frequently asked questions
What is the price of 2S 5A 8.4V BMS Protection Board for 18650 Li-ion Battery Packs in Egypt?
2S 5A 8.4V BMS Protection Board for 18650 Li-ion Battery Packs currently costs 39.9 EGP in Egypt.
Where can I buy 2S 5A 8.4V BMS Protection Board for 18650 Li-ion Battery Packs in Egypt?
2S 5A 8.4V BMS Protection Board for 18650 Li-ion Battery Packs is available from Most Electronics. Compare the offers above to find the best price.
How do I connect a 2S pack to the board?
Connect the pack's negative terminal to B-, the junction between the two cells to the middle balance pad, and the positive terminal to B+. Connect the load or charger to the output terminals marked on the board.
What charging voltage should I use?
A 2S Li-ion pack is fully charged at 8.4V (4.2V per cell). The listed input range of 8.4 to 9V means the charger must not exceed about 8.4V on the pack. Use a constant-voltage Li-ion charger.
