So many batteries are on the market, and you don't know what to choose.
We only work with trusted brands, and all 21700 batteries are authentic.
Excellent internal safety protection: PTC cathodic block protection in the front, separate microporous protection in the middle, and pressure relief valve protection in the bottom, so our batteries are very safe for daily usage.
Excellent 3 sets of external safety protection: thermal overheat protection at the top, nickel-plated S.S protectors at both ends to ensure high impact resistance and an injection-molded protection circuit to ensure high usage security. The durable metallic film ensures it is highly resistant to abrasion. One of the best 21700 batteries is the Imren 21700 3750mAh.
