Amazon.com: Kastar 15-Pack Nickel Metal Hydride (Ni-MH) Rechargeable Paper Wrapped Sub C SC Cell 1.2V 2200mAh Battery Flat Top Replacement for Any of 1000mAh ~ 2500mAh Ni-CD & Ni-MH Sub C SC
Batteries4pro - Comparison of Ni-Cd, Ni-MH, Li-ion batteries
Blog - RC Batteries: LiPo Vs NiHM - Why LiPos are Better