Description

It is important to be aware that the 18650 6800mAh 3.7V battery is not a legitimate product, and its stated capacity is physically impossible.

Technical Impossibility: The 18650 form factor (18mm diameter by 65mm length) is limited by current lithium-ion technology to a maximum capacity of approximately 3,500mAh to 3,600mAh. Any 18650 battery claiming a capacity significantly higher than this—such as 6800mAh—is mislabeled.
Performance: Batteries labeled as “6800mAh” are typically low-quality, “hobby-grade” knockoffs. Testing often reveals their actual capacity to be significantly lower, frequently ranging from 400mAh to 2,000mAh.
Safety Risks: These cells are often unbranded or counterfeit versions of reputable batteries. They may lack proper protection circuitry, leading to risks such as overheating, high internal resistance, or potential fire hazards if used in high-drain devices.

Avoid High-Drain Use: Do not use these batteries in devices that require high current, such as high-power flashlights, power tools, or vaping devices.
Authentic Alternatives: If you need reliable 18650 batteries, look for established brands such as LG (e.g., MJ1), Sanyo (e.g., GA), or Samsung (e.g., 35E), which offer verified capacities up to 3,500mAh.
Disposal: Because these mislabeled batteries are frequently found to be low-quality or potentially unstable, it is generally recommended to replace them and dispose of them properly at a designated lithium-ion recycling or collection center.

QHTC 18650 6800mAh 3.7V