I bought a 65mm volt battery. The kit I got didn't have a charger so I used a charger for an old 808 I had while waiting for my new kit in the mail. Once the charger came I used it on my battery I used the 3rd party charger for and the volt charger has the blue light turn on to show it's fully charged but the ash led doesn't turn off. It still works and charges, but the light won't go out however the new battery's ash light will go out when fully charged.