Hi vees,

It does charge via USB and data transfer at the same time.

I do not know anything about voltage.

The pin is the same size as the N800 pin. Also I use it on my nokia phone and
it's a 6102i.

The best part about this charger is that it's very small and handy.

Wanted to add: I went to the Nokia site and E62 and N800 use the same
charger

Nash