Guys 'n' Gals, calling those of you who use these batteries. Kanger tech evod 650Mah. I don't want to start an epic thing here & i understand that battery life is dependent upon usage amount o.k. I'm more investigating than anything because i bought a kit in the u.k which is U.S marked rather than E.U & the charge time is much shorter than the book states it should be. Really the relevant thing is how much i get out of them before they need a charge again & if they are performing o.k then the quick charge time is a bonus. Just asking though that's all , curious as to how long a full charge should go on say vaping fairly heavily. My last charge gave me a day & a half & i was caning it. Blessings all.