18650 rechargeable battery, the 18650 has 3200MAH, the internal loss is small, the charging performance is stable, lasts for a long time and is effective, can be used for repeated charging cycle. It can be charged up to 1,000 times. Nickel-metal hydride batteries have a certain amount of memory, charging the best to wait for the last charge of the discharge. Rechargeable batteries can be used repeatedly, so it is a fresh power in the battery industry, the future is bright, it is generally used in strong light flashlight, police equipment, high-end electrical appliances and other products supporting.