
Polymer Li-Ion Battery 3.7V 50mAh 401020 (20x10x4mm, 2-Wire)
Prices updated: 14 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
Microohm | Polymer Li-Ion Single Cell Battery 3.7V 50mAh 20*10*4mm 401020 2 wire | 80 EGP100 | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 80 EGP
About this product
A single-cell Polymer Li-Ion battery rated 3.7V and 50mAh, in a thin 20x10x4 mm pouch format with two wire leads. It suits small DIY, wearable and IoT projects where space is very limited and low capacity is enough.
Specifications
- Nominal voltage
- 3.7V
- Capacity
- 50mAh
- Dimensions
- 20x10x4 mm
- Chemistry
- Li-Ion Polymer (single cell)
- Leads
- 2 wire
Frequently asked questions
What is the price of Polymer Li-Ion Battery 3.7V 50mAh 401020 (20x10x4mm, 2-Wire) in Egypt?
Polymer Li-Ion Battery 3.7V 50mAh 401020 (20x10x4mm, 2-Wire) currently costs 80 EGP in Egypt.
Where can I buy Polymer Li-Ion Battery 3.7V 50mAh 401020 (20x10x4mm, 2-Wire) in Egypt?
Polymer Li-Ion Battery 3.7V 50mAh 401020 (20x10x4mm, 2-Wire) is available from Microohm. Compare the offers above to find the best price.
How should I charge this battery?
Use a 1S Li-Po / Li-Ion charger with a 4.2V CC/CV charging profile. Do not connect it directly to a 5V USB or any higher voltage source.
Does it need a protection board?
Yes, it is strongly recommended to use a protection or BMS board to prevent overcharge, over-discharge and short circuits, especially in projects that will run unattended.






