Review on TELESIN AllinBox Function Waterproof Batteries by Marcus Trevino

According to my EXPERIENCE with these batteries, i have found them to be unreliable when used in wet conditions despite claims of being waterproof. The build quality of the batteries feels cheap and fragile, and they have failed to hold a charge for very long. On the positive side, the overall design of the batteries is convenient for use with multiple camera brands. Unfortunately, the lack of durability and inconsistency in performance make these batteries a poor investment in electronics for serious photographers. .