ORIGINAL: Candre23
Just be aware of the physical dimensions of 5000mAh+ batteries. NiMH packs use standard sized sub-C cells, but lipos come in all shapes and sizes. The high capacity packs are physically larger than the lower capacity packs, and won't necessarily fit in all vehicles. I got a pair of turnigy 5000mAh hardcase lipos for my evader, and was more than a little bummed out that they were a hair too tall to fit under the ESC shelf (which is part of the frame and cannot be adjusted).
yep my 5200mah 2S hardcases can't fit in my Tamiya DF-02 no matter what I do.
Also take into consideration where the wire is for power. In my case my DF-02's battery post is right where the wire goes into the case, and I'd have to cut the tub side off to fit the width of the lipo(+ I'd need a new way to clamp it down seeing its taller than the hold down).