The 3.7V 2000mAh 18650 Li-Ion Rechargeable Cell from EASTAR® is a cylindrical lithium-ion cell in the 18650 form factor 18mm diameter and 65mm length the most widely used rechargeable cell size in portable electronics, DIY power banks, and custom battery pack. The name 18650 directly encodes the dimensions: 18mm diameter and 65mm length, with the trailing zero a historical format convention. At 3.7V nominal and 2000mAh capacity, each cell stores 7.4Wh of energy.
The 18650 rechargeable battery connects directly into any 18650 compatible cell holder, spring-contact battery carrier, or spot-welded pack configuration. A single cell at 200mA continuous draw runs for approximately 10 hours before reaching the safe discharge cutoff voltage. The lithium ion battery 2000mah cell connects in series with other cells for higher voltage two cells produce 7.4V for 2S and three produce 11.1V for 3S with each cell needing individual voltage monitoring through a BMS or balance charger during charging to prevent any single cell from overcharging above 4.2V.
The lithium ion battery 3.7 v 2000mah suits power bank, torch and flashlight, and custom multi-cell Li-Ion pack construction. EASTAR® branding provides consistent physical dimensions and capacity labelling across cells from the same batch, which matters when building matched multi-cell series packs where capacity imbalance between cells reduces overall pack runtime. The 3.7V 2000mAh battery suits single-cell and multi-cell portable power across a wide range of DIY electronics projects. This cell is working on Li-Ion battery and portable power projects. Available on StemVolt.
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Features:
- 3.7V 2000mAh 18650 li-ion rechargeable cell with consistent capacity & dimensional specifications
- 2000mAh per cell stores 7.4Wh for single-cell and multi-cell pack
- 18 x 65 mm standard body seats into all 18650-compatible holders and carriers
- Series connection gives 7.4V at 2S and 11.1V at 3S multi-cell configurations
- Li-Ion chemistry provides higher energy density than NiMH at same cell size
Technical Specifications:
Applications:
- 3.7V 2000mAh 18650 li-ion rechargeable cell makes DIY power bank with TP4056 and boost converter
- 18650 rechargeable battery powers portable ESP32 sensor node in remote outdoor field
- Lithium ion battery 2000mAh 3S 11.1V robot chassis drive battery pack
- Rechargeable cell powers high-brightness LED torch in custom handheld lighting
- 2000mAh battery matched 2S LiPo replacement pack for RC transmitter power
Package Includes:
- 1 × 3.7V 2000mAh 18650 Li-Ion Rechargeable Cell
Kanwarjit Dhillon –
Professional packaging and multiple payment options ensured a smooth and satisfying purchase experience.
Aditya Bhatia –
Best store for students provides speedy dispatch and delivery
Sridhar Swamy –
Highly recommended lithium ion battery cell
Parminder Singh –
Excellent quality and after-sales support made this battery ideal for final year projects.
Anand Khandelwal –
3.7V 2000mAh Li-Ion cell delivered reliable backup and stable performance in electronics projects.
Narendra Rathore –
No complaints with quality