Yes. The voltage and C rating are the most important. I do the same thing with my Parkzone T-28. The largest pack I can fit without a bunch of cutting is a 2600mah pack, I mostly use 2200mah packs, but I have some 1300mah packs that I bought for my HZ supercub that I occasionally use in the T-28. All of these are 3cell packs, but one of the 2200mah packs only has a 20C rating, so it doesn't have as much power as the others, but still gives decent flight time. I get about 15min with the 2600mah pack, about 12min with the 2200mah packs, and 6 to 8min with the 1300mah packs in the T-28.