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.
