4S 20A 16.8V Li-Ion BMS Protection Module
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | Lithium Battery Charger Protection Module (BMS) 4S 20A 16.8V | 100 EGP | View in store |
 Most Electronics | BMS 4S (16.8V 20A ) Lithium Battery Protection Module | 111 EGP127 | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 100 EGP
About this product
A protection board (BMS) for a four-cell Li-Ion pack (4S, 16.8V) with high-accuracy voltage detection, three-stage over-current detection and control of charging and over-discharge. The listed working current is 10A, with a 20A instantaneous limit and 45mΩ internal resistance.
Specifications
- Cell configuration
- 4S (4 cells in series)
- Maximum voltage
- 16.8V (charging 16.8V to 17V)
- Working current
- 10A
- Instantaneous current
- 20A
- Overcharge voltage
- 4.25V to 4.35V ±0.05V
- Over-discharge voltage
- 2.3V to 3.0V ±0.05V
- Quiescent current
- Below 30µA
- Internal resistance
- 45mΩ
Frequently asked questions
What is the price of 4S 20A 16.8V Li-Ion BMS Protection Module in Egypt?
4S 20A 16.8V Li-Ion BMS Protection Module currently costs between 100 and 111 EGP across 2 offers in Egypt.
Where can I buy 4S 20A 16.8V Li-Ion BMS Protection Module in Egypt?
4S 20A 16.8V Li-Ion BMS Protection Module is available from Makers Electronics and Most Electronics. Compare the offers above to find the best price.
What is the difference between working current and instantaneous current?
The working current (10A) is the continuous limit listed for the board. The instantaneous current (20A) is the short-term peak it can handle before its over-current protection acts.
Can I use it with a 3.7V single cell or a pack with fewer cells?
No. This is a 4S module for four Li-Ion cells in series. For one, two or three cells, use a protection module built for that series count.
