I have many NiMH batteries and fast charge them all with this http://www.siriuselectronics.com/ind...roducts_id=346 and have no problems at all. I always do a slow charge and recycle a few times first and then I'm good to go.

I have not had good luck with Nimh batteries used as ignition packs ( something about too much internal resistance ) so I have returned to nicads ( and maybe lipo's ) for this purpose.