AS18650-2000 3.7V 2000mAh 18650 Battery
3.7V 2000mAh 18650 rechargeable lithium-ion battery with low internal resistance (≤40mΩ). Ideal for flashlights, Bluetooth speakers, and low-power IoT devices. OEM customization available.
Description
Model AS18650-2000 – High Capacity 18650 Li-ion Battery
Voltage: 3.7V | Capacity: 2000mAh (7.4Wh) | Size: 18.4mm (D) × 65.0mm (H)
The AS18650-2000 is a reliable cylindrical lithium-ion battery designed for applications requiring stable power delivery and long cycle life. With a nominal voltage of 3.7V and a typical capacity of 2000mAh, this cell offers an excellent balance between energy density and cost‑effectiveness.
Ideal for consumer electronics, portable lighting, and low‑power IoT devices, the AS18650-2000 features low internal resistance (≤40mΩ) and supports standard 0.2C charging, ensuring safe and consistent performance over hundreds of cycles.
Technical Specifications
| Battery Type | Lithium-ion Battery |
| Part Number | AS18650-2000 |
| Nominal Voltage | 3.70V |
| Typical Capacity | 2000mAh (7.4Wh) @ 0.2C discharge |
| AC Impedance (Internal Resistance) | ≤40mΩ |
| Charge Voltage | 4.20V (Max. 4.23V) |
| Standard Charge Current | 400mA (0.2C) |
| Max. Charge Current | 2000mA (1.0C) |
| Max. Discharge Current | 2000mA (1.0C) |
| Discharge Cut-off Voltage | 2.50V |
| Weight | Approx. 45g ±1.0g |
| Operating Temperature | Charge: 0~+45℃ / Discharge: -10~+50℃ |
| Storage Temperature | -10°C to +45°C |
| Protection Circuit | No PCM (Optional upon request) |
Core Advantages
- ✔
High Energy Density: Delivers 7.4Wh of power in a compact cylindrical form factor, ideal for space‑constrained designs. - ✔
Low Internal Resistance: ≤40mΩ ensures efficient power transfer and reduced heat generation during high‑rate discharges. - ✔
Wide Operating Temperature: Reliable from -10°C to +50°C, suitable for both indoor and outdoor applications. - ✔
Long Cycle Life: Optimized chemistry supports hundreds of charge‑discharge cycles with minimal capacity fade.
Perfect For Applications
Flashlights, headlamps, camping lanterns, emergency lights.
Bluetooth speakers, portable radios, voice recorders.
Wireless sensors, alarm panels, smart meters, GPS trackers.
Handheld fans, electric toothbrushes, shavers, remote controls.
Customization Services (OEM/ODM)
We offer full flexibility to adapt the AS18650-2000 to your project requirements:
- Protection Circuit: Add PCM with over‑charge, over‑discharge, and short‑circuit protection.
- Lead Wires & Connectors: Solder wires or attach JST/Molex connectors per your assembly.
- Insulation & Labeling: Custom shrink‑wrap with your logo or specific markings.
- Multi‑cell Packs: Combine multiple cells to create higher voltage (7.4V, 11.1V) or capacity packs.
