Note on most cheap chargers: Typical cheap chargers use a timer and do not charge individual cells evenly, or at all, or have no timer and will damage them if left in too long. They typically will only charge 2 batteries at a time and they must have the same charge, use a bulky wall adaptor, or plug directly into the wall, requiring you to stoop down and remove all other plugs from the socket and usually will only accept local power (120v).