Polymer Li-Ion 3.7V 4000mAh Single Cell Battery 65x40x12mm
Prices updated: 13 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 RAM Electronics | Polymer Li-Ion 3.7V 4000mAh Single Cell Battery | 375 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 375 EGP
About this product
A single-cell polymer lithium-ion battery with a nominal voltage of 3.7V and a capacity of 4000mAh, measuring 65 x 40 x 12 mm. Its flat format suits portable projects that need a high-capacity cell, such as handheld devices and power bank builds. Use a charger or protection circuit designed for single-cell Li-Po.
Specifications
- Chemistry
- Li-ion polymer / ليثيوم بوليمر
- Nominal voltage
- 3.7 V / 3.7 فولت
- Capacity
- 4000 mAh
- Dimensions
- 65 × 40 × 12 mm / 65 × 40 × 12 مم
Frequently asked questions
What is the price of Polymer Li-Ion 3.7V 4000mAh Single Cell Battery 65x40x12mm in Egypt?
Polymer Li-Ion 3.7V 4000mAh Single Cell Battery 65x40x12mm currently costs 375 EGP in Egypt.
Where can I buy Polymer Li-Ion 3.7V 4000mAh Single Cell Battery 65x40x12mm in Egypt?
Polymer Li-Ion 3.7V 4000mAh Single Cell Battery 65x40x12mm is available from RAM Electronics. Compare the offers above to find the best price.
What charge voltage should I use?
A single Li-Po cell is fully charged at 4.2V and must not be charged above that. Use a 1-cell Li-Po charger with protection.
Can I connect it directly to a 5V supply?
No. 5V exceeds the 4.2V maximum of a Li-Po cell. Use a proper charger and protection circuit, and a regulator when you need a 5V rail.
