A cylindrical rechargeable lithium-ion cell (size 18650) offering a balance of capacity and compactness. With a typical capacity of 1800 mAh and a nominal voltage of 3.7 V, this cell is ideal for flashlights, power banks, portable electronics, and DIY battery packs.
Key Features
Standard 18650 size with steel casing (18.4 mm × 65 mm)
High-energy-density chemistry, nominal 3.7 V output
Moderate capacity (1800 mAh) for reliable runtime
Designed for over 500 charge cycles
Rated for safe operation between –20 °C and 60 °C
Can handle up to 1C charge/discharge rates (~1.8 A)
Lightweight (~44 g each) and easy to install
