New to 21700 batteries

[RIHappyDiver]

I just picked up two lights that came with 21700 batteries, one a flat top, the other a USB charge button top. I want to get backup batteries, but not sure which brands to avoid. I had 18650s relatively down, but I’m not finding any of my go-to brands in this category on Liion Wholesale. Vapcell seems to be their big brand. Any help on this subject is appreciated.

Erik

 

[davehicks]

I looked at that site and those were some low-rent dodgy looking batteries!

I would suggest Nitecore as a reliable brand. You can but them from Battery Junction.

 

[tursiops]

Nitecore is good, also XTAR and Panasonic.
Make sure it is protected.
Avoid anything with Fire in the name....