Are Nickel Metal Hydride packs better than Nicads?
*A: The answer depends on the application. NiMH in some cell types can have higher internal impedance, this means the voltage drop under significant current loads can be noticeable; particularly in electric flight motor pack applications. In most smaller sized aircraft (up to .60 sized using ‘AA’ sized cells) normal servo current loads seldom impact system security. Even in aerobatic environments most control systems don’t threaten a modern 4 cell Sanyo NiMH ‘A’ or ‘Sub-C’ sized packs voltage stability while under normal aerobatic flight loads. Nonetheless, I prefer to be very safe instead of very sorry! Years of experience with both Nicad and NiMH discharge curves under demanding or spiking, erratic loads leads me to strongly recommend using a 5 cell 6v pack or a parallel pack system in overly aggressive flight circumstances and particularly in 3-D, IMAC and Giant Scale type applications no matter which cell technology or servos you choose to fly with.*As far as I’m aware, I’m the onl
