You can use any 24v charger that charges at 29.4v up to 3 amps, You can get any connector in Maplin. You only have to put it on the right way round. If you can't solder yourself, I'm sure your wife, next door neighour, you brother or the bloke down the road will do it for you. Just be aware that the brown wire is normally the negative and the blue the positive, but always check.