Leapy your totally right but the charger that came with mine was naff and i didnt want them to swap it for another naff charger, so i did it myself and paid a tenner for a better quality charger, i just havent got the time to P-ss around if you know what i mean!
the chargers are such good quality that come with it you actually have no idea when it it charged, no light or indicator!!
if its a 4 hour round trip to the store,is it ever worth it £35 in fuel??
go on line a get a bloody 500mah 12v trickle charger!!
Do not connect a car battery to it , it will blow it up!! actually it would be quite entertaining really