ive got an 808 Ego and a vv ego. the vv's charger has a higher output (420mAh) so i would like to use that for the 808 ego. so i bought an adapter. the adapter screws on just fine, but the batt wont charge. i tried folding a staple in half and placing it between the batt threads and the adapter to see if maybe the batt wasnt connecting to the adapter. didnt work. anyone got any advice?