No! Don’t buy any batteries with Fire in the name. That means no UltraFire, TrustFire, SuperFire, SureFire, UranusFire… They’re just bad news.
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Who knows what could be inside!“:Have you seen this type of counterfeit 18650 battery before? UltraFire
Pick up some real brand name batteries, eg Samsung, Panasonic, LG, Sony, etc.