The breath-activated Vape Battery has a 340 mAh capacity, an approximate lifespan of 300 charging cycles. The battery contains a Li-ion cell and comes with a 510 thread USB charger. This battery can be used in combination with any HEXO 510 thread cannabis cartridge sold separately. All vape batteries sold on meet disposable/rechargeable standard CAN/CSA-E62133 or equivalent and transportation standard UN/DOT38.3. This product is final sale.