A 3.7V 6800mAh rechargeable lithium-ion battery typically features a nominal voltage of 3.7V (charging up to 4.2V) and is commonly found in form factors like 18650 or 26650 cells used for high-drain devices like flashlights and headlamps.
Technical Specifications
Nominal Voltage: 3.7V (fully V, discharge cut-off around 2.5V–2.75V)
Rated Capacity: 6800mAh (Note: true physical capacity for standard 18650 cells is often lower; 6800mAh labels frequently appear on larger 26650 or multi-wrapped consumer cells)
Battery Chemistry: Lithium-ion (Li-ion)
Cycle Life: Varies widely by brand and quality, ranging from 500 up to 1,000+ recharge cycles (some consumer listings claim up to 2000 cycles) ]
Physical Dimensions (Common Form Factors):