ElectronicsEgypt
Polymer Li-Ion Battery 3.7V 50mAh 401020 (20x10x4mm, 2-Wire)

Polymer Li-Ion Battery 3.7V 50mAh 401020 (20x10x4mm, 2-Wire)

Part number: 401020Batteries & Holders

Lowest price now

80 EGP

1 offer · 1 stores

View in store: Microohm

Prices updated: 14 Oct 2026

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Price history

Lowest daily price, last 90 days

81.28078.812 Oct 202614 Oct 2026

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.