The 18650 battery is a rechargeable battery that is 18mm wide and 65mm long. It is used in many things like flashlights, laptops, power tools, e-bikes, and LED lights. This battery has a power of 3.7 volts and can hold up to 2000mAh of energy. That means it can give power for a good amount of time before needing to be charged again.
These batteries are made in China and are often safe to use. Many of them have a built-in protection circuit so they don’t get too full (overcharged) or too empty (over-discharged). They are also safe from short circuits. You can charge them 300 to 500 times, and they last a long time with stable power.
Features
Type: Rechargeable Lithium-ion battery
Size: 18650 (18mm × 65mm)
Voltage: 3.7V (nominal), up to 4.2V when charging
Capacity: 2000mAh
Good for: Flashlights, laptops, e-bikes, power tools, and more
Safety: Built-in protection from overcharging and short circuits
Cycle Life: Can be charged 300–500 times
Low self-discharge: Holds power well over time
Made in: China
