The blu original starter kit sucks in my opinion, neither me nor my wife liked it and we took it back and got a refund. I switched to 510 stuff and never looked back. I like the 510 setup and its good when your out in public, I have a PCC for the batts and I'll be getting a couple spares in case its a long day out and the PCC does not charge the batt fast enough, but I don't think it will be an issue. At home I have a 510 USB passthrough so I dont have to worry about batteries and I can save them. The blu carts I got from walgreens were stale and probably dried up because they didn't even last a day. However I did save them, clean them out and put my own liquid in them, well they worked way better on my 510 then those punny batteries from the starter kit. blu original kit fail. blu 100 kit I have not tried because I did not want to give them another chance after the huge disappointment.