4S 40A 18650 Li-ion BMS Protection Board 14.8V-16.8V with Balance
Prices updated: 14 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 MicroohmCheapest | 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module | 110 EGP170 | View in store |
 Most Electronics | BMS 4S 18650 Lithium Battery Protection Board (40A-14.8v) | 150 EGP203 | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 110 EGP
About this product
This 4S protection board (BMS) is built for four-series 18650, 26650 or polymer lithium cell packs rated 14.8V to 16.8V. It provides 40A continuous discharge, 100mA cell balancing and automatic recovery, and is aimed at power tools, sprayers, LED lights and low-power inverters. Ensure good cooling, and reduce the load current if the board runs hot.
Specifications
- Configuration
- 4S (4 series)
- Voltage range
- 14.8V-16.8V
- Continuous discharge current
- 40A
- Balance current
- 100mA
- Charge voltage range
- 16.8V-18.1V
- Max continuous charge current
- 20A
- Cell types
- 3.6V/3.7V Li-ion (18650, 26650, polymer)
Frequently asked questions
What is the price of 4S 40A 18650 Li-ion BMS Protection Board 14.8V-16.8V with Balance in Egypt?
4S 40A 18650 Li-ion BMS Protection Board 14.8V-16.8V with Balance currently costs between 110 and 150 EGP across 2 offers in Egypt.
Where can I buy 4S 40A 18650 Li-ion BMS Protection Board 14.8V-16.8V with Balance in Egypt?
4S 40A 18650 Li-ion BMS Protection Board 14.8V-16.8V with Balance is available from Microohm and Most Electronics. Compare the offers above to find the best price.
How do I connect the balance leads?
Connect the balance wires in order, from the negative terminal of the first cell up to the positive terminal of the last cell, following the labels on the board. Connect the pack to the marked battery and load terminals, and check each cell voltage before powering the load.
Can this board charge the battery pack?
The board supports a charge voltage range of 16.8V to 18.1V with a 20A upper limit, but you still need a 4S Li-ion charger, normally set to 16.8V, to charge the pack safely.
