Overview
When your high-intensity flashlights, portable fans, custom electronics enclosures, or experimental maker projects require a sturdy cylindrical lithium-ion power source that handles moderate continuous currents easily, standard 18650 cells can sometimes feel too small or under-specified. The 3.7V 2000mAh Cylindrical 26650 Li-Ion Battery Cell offers a larger heavy-duty form factor with robust thermal and physical properties. Delivering a nominal 3.7V output, this versatile cell provides a stable energy baseline for custom builds and replacement applications.
Key Features
Robust 26650 Form Factor: Larger physical footprint (26mm diameter by 65mm length) provides improved heat dissipation and structural durability.
Stable 3.7V Nominal Voltage: Standard lithium-ion voltage profile reaches up to 4.2V when fully charged for reliable device compatibility.
Reliable Discharge Performance: Consistent power delivery suitable for medium-drain motors, LED drivers, and portable tech gadgets.
Rechargeable Ion Chemistry: Supports multiple charge and discharge cycles when used with proper lithium-ion battery management systems.
Technical Specifications
| Feature | Specification |
| Product Type | Cylindrical Lithium-Ion Rechargeable Battery Cell |
| Cell Size | 26650 (26mm Diameter x 65mm Length) |
| Nominal Voltage | 3.7V DC |
| Capacity | 2000mAh |
| Chemistry | Lithium-Ion (Li-ion) |
| Terminals | Flat top / Standard contact points |
Common Applications
High-Intensity Flashlights: Replacement or DIY upgrade power source for heavy-duty LED torches and searchlights.
Portable Gadgets & Fans: Reliable energy storage for handheld USB fans and emergency portable equipment.
Maker & Electronics Projects: Custom power setups for workbench experiments and simple motorized prototypes.
Note to customers: Always use a dedicated 3.7V lithium-ion charger and incorporate a BMS protection circuit to prevent overcharging and deep discharge!
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