This 3.7 V 6000 mAh 26650 lithium battery (COM65, R33) delivers high-capacity power in a compact cylindrical form factor, ideal for demanding portable and embedded projects. Engineered with premium lithium‑ion chemistry, it provides a stable voltage output and long cycle life, ensuring reliable performance for Arduino‑based and other microcontroller applications.

Specifications

• Nominal Voltage: 3.7 V


• Capacity: 6000 mAh


• Cell Size: 26 mm × 65 mm (26650)


• Chemistry: Lithium‑Ion (Li‑ion)


• Maximum Continuous Discharge Current: 15 A (typical)


• Maximum Pulse Discharge Current: 30 A (10 s)


• Charge Voltage: 4.20 V ± 0.05 V


• Charge Current: 3 A (0.5 C) recommended


• Operating Temperature: –20 °C to 60 °C (discharge)


• Storage Temperature: –20 °C to 45 °C


• Cycle Life: ≥500 full cycles at 80 % depth of discharge


• Safety Features: Built‑in protection circuit (over‑charge, over‑discharge, short‑circuit)

Typical Applications

• Arduino and Raspberry Pi portable power packs


• DIY flashlight and high‑output LED projects


• Electric scooters, e‑bikes, and small power tools


• Remote sensor nodes and IoT devices requiring extended runtime


• Battery‑powered robotics and UAVs


• Portable medical and emergency equipment


• Custom battery packs for hobbyist and professional prototypes