I have two race packs that are 3300's. I built them and they arnt radioshacks. I have a pirahana digital peak charger. I dont know what charge settings to charge them at. They never used to get this hot. Here are the choises.

1) Nimh or nicad: -obviosly nimh
2) Amps to be charged at: -Im using 4.5 (IS this bad?)
3) Batteries mah rating: -I put 3350 it goes by 50's and this way it gets full charge.
4) Peak sencitivity rating: - Its from 1-20 1 being the highest peak senscitivity I chose 9.


Thanks.
Also how hot should these batteries get??