Qualified 18650 batteries will not explode due to over discharge. People who say this usually say such things because their own batteries are not qualified or they don't understand batteries.
For ordinary 18650 batteries, do not look at the battery capacity listed on household batteries, because it is just a number. In fact, home batteries marked 2800 or even 3000 MAH or more actually use 1200 or more. 1500. When you drive a 3W LED with high current, let alone 3 hours, it would be good if it can last 2 hours. Generally, it can only be used for more than an hour. To extend the duration, either use a battery with a larger actual capacity or reduce the current and use a small current drive. The duration can be extended, but the brightness will also be reduced.
Sanyo batteries are the bestlleurs among the batteries for flashlights. However, imported Sanyo batteries are not protected. Those with skid plates must be treated separately and a skid plate added.
The usage time of the Ocean King flashlight depends on the number of batteries it uses and the discharge current of the flashlight. Strictly speaking, the Ocean King flashlight is an explosion-proof flashlight and has relatively good reliability. , the appearance and irradiation performance are not the best, because the explosion-proof flashlight is used on special occasions and has strict structural requirements, that's all.
Commonly used tactical flashlights or outdoor flashlights require more performance such as waterproof, brightness, beauty and ruggedness.
If you have any questions about flashlights, you can ask me or check the album photo to take a look.
The battery cannot be charged. Generally, the battery life is expired and the normal battery needs to be disposed of. Battery life (lithium-ion) is calculated 1000 times per day. Battery life is almost 2-3 years. It is expired.
Buy a new one directly for more than 300 yuan, the national toll-free number is 8008306199