4S 30A Li-ion BMS Protection Board 14.8V with Balancing
Prices updated: 13 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Makers Electronics | Li-ion Battery Charger Protection Module (BMS) 4S 30A 14.8V Common Port with Balancing | 375 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 375 EGP
About this product
A 4S 30A Li-ion BMS protection board for 14.8V nominal battery packs, with cell balancing and a common charge/discharge port. Its 62×45mm PCB suits e-bike, power tool and DIY battery pack builds that need overcharge, over-discharge and over-current protection.
Specifications
- Cells
- 4S
- Chemistry
- Li-ion
- Max current
- 30A
- Nominal voltage
- 14.8V
- Balancing
- Yes
- Port type
- Common port (charge/discharge)
- Dimensions
- 62 x 45 mm
Frequently asked questions
What is the price of 4S 30A Li-ion BMS Protection Board 14.8V with Balancing in Egypt?
4S 30A Li-ion BMS Protection Board 14.8V with Balancing currently costs 375 EGP in Egypt.
Where can I buy 4S 30A Li-ion BMS Protection Board 14.8V with Balancing in Egypt?
4S 30A Li-ion BMS Protection Board 14.8V with Balancing is available from Makers Electronics. Compare the offers above to find the best price.
How do I wire the balance leads?
Connect B- to the negative terminal of cell 1, then B1 to the junction of cell 1 and cell 2, B2 to the junction of cell 2 and cell 3, B3 to the junction of cell 3 and cell 4, and B4 to the positive terminal of cell 4. Check the labels on the board and confirm the sequence before connecting the pack.
What full-charge voltage should I use with this board?
A 4S Li-ion pack is fully charged at 16.8V (4.2V per cell). Use a charger rated for 4S Li-ion at this voltage. The 14.8V figure is the nominal pack voltage, not the charging voltage.
