We now carry authentic CCELL 510 batteries in stainless steel, which fit all standard cannabis cartridges. Did you know most of the high-quality canna cart hardware on the market today is made by CCELL? These batteries are their true mates. They are inhale activated, have an LED indicator light, are robustly built, are charged using a standard USB outlet, and are engineered to last. There are a gazillion knock-offs, but there's only one CCELL, and we have them for the same price as the knock-offs. Cheers!