is this a good race revo setup?

[jnev]

They are lipo's. But they can take a lot more abuse, so they are a lot less likely to blow up, fry, etc. They are also just a lot better overall, from what I hear from everyone using them on this forum.

[zeropointbug]

The TrakPower's from what I have seen, they are almost a constant voltage power supply for your R/C. They have very good voltage sag, like 3.5v at 100amps constant load (4900mah pack)