OOOERRRR!
I bought a new charger a couple weeks ago but it never came with a mains power pack, just a plug with two car battery clips on it.
Anyway got around to thinking I would give the NIMHs a charge (its a multi type charger) read the instructions on how to select NIMH and not LIPO or lead acid or NiCd, then went through mt stash of mains power packs to find one to fit the charger -hmmm not one to fit. So re-read the instructions, it needs a mains psu between 12 and 18volts but heres the clanger, at least 6amp output

Checked Ebay and to get such a high amperage they cost a fortune, so it looks like attaching to the car battery for now.