Ok, So I thought I get into R/C Trucks and Cars again.I got all my stuff back out and batteries ready again to get them up to performance. I have a Evader ST with a Sprint ESC and DX2 2.4ghs Transmitter and rec. If I give it full reverse and then smash the forward throttle real quick it doesn't go anywhere, but when one of the two 3300NiMh 7.2V Venom batteries i use in it seems to not have this problem, and if I just smash the forward throttle it with not using the one battery Ijust talked about it doesn't go anywhere, I have 4 batteries and it seems that the three might be the problem, and the one I've been using seems to work it fine. Just wanted to see if that could fully be it. If I left something out just say and I will say what else it's doing or whatever

Batteries- Two 3300mah NiMh 7.2v Venom with Traxxas plugs
and Two epic 3000mah NiMh 7.2v with standard plugs

How long have the batteries been sitting in storage?

could also be the battery connectors. if they are the old tamiya style ones, the can often not connect good enough and cause problems.
if the batteries have been stored for a long time, try cycling them(charge-discharge-charge)

For over a year I think, I've been doing the cycle, but only of them is actually putting out better than the others

My guess is that 3 if them aren't charged. Could it be a charger problem? It's hard to tell w/out some tests or readings.

I've been charging the one battery that seems to work with the same charger as the others, I think they just need to get a few more recycles, they seem to last longer and are making some progress. But I do notice sometimes if I ease on the forward throttle they will go, but If I press on it fast they seem not to go, Ithought about my esc but it doesn't do it with the good battery.

I'm not necessarily saying it is a bad charger , but rather the charger didn't work with that batery (that time)

It should be fairly easy to make sure the batery is actually charged, right? May can simply read what's on the screen during/after the charge. Other's may have to verify the charge x time = capacity delivered. Others can verify by pack temp at end of charge.