Yeah, most quick chargers are set up to use 12VDC or 120VAC. There's too many to name, lots of features available. Most are compatible with NiCad and NiMH, some will do LiPo's also. Prices run from $50-$200, depending on just what you want. Look for something that will read your packs and allow you options on charge rate; some will charge multiple packs of different voltages at one time, some have capability to discharge packs also. Tower catalog has a comparison page.

Quick chargers will recharge a std Rx pack of 700 mAh in about 10 -15 minutes, Tx pack in about the same time.