I just switched to NiMH batteries and I did some research on charging. Everything I read say not to use a quick charger that is for Nicad batteries. However, you can use a regular slow charger that comes with your radio system. There are a few NiMH battery chargers on the market that will handle a quick field charge. In fact, I just ordered one today for my NiMH batteries. I ordered the Hobbico Quick Field Charger MKII. It cost $49.99 and it can charge Li-lon and LiPo packs. Good luck.