The only conclusion that I can come to is that the 4S2P 6Ah packs that I got from maxamps suck big time. They don't even come close to being able to put out 20C, not if what you guys are telling me is true about the demands of my system. My track consists of mostly technical parts with lots of twists and turns, whoops and table tops, with two 160' straights. It really isn't anything that should put a strain on a true 6Ah 20C battery. When I run these packs fresh off of the charger and run them until the esc cuts out, they temp around 140-150, which tells me that I'm running them to their capability. After tonight's running, one of my packs won't even balance. It's been on the balancer for about four hours now. Cells 1, 3, and 4 are reading that they are discharging at the maximum rate of 300ma. I think that cell two might be dead. The pack isn't even two weeks old. I also have a 4S 4Ah pack and it's a joke. The first time I ran it, I couldn't even hold it when I tried to pull it out to switch packs.

We did order a 4S2P 8Ah pack, maybe that will fare better, but I'm going to have to re-do my battery tray and hold down to accomodate it. Unfortunately, I ordered the pack on Feb. 12, and it hasn't even shipped yet. I keep hearing all of the great stuff about maxamps' customer service, but I'm still waiting to see it. I mean, the guys are really nice on the phone. I've been recommending them to everyone that asks me about brushless and lipos. I think I'm going to stop doing that. Disappointing performance and some hard crashes have led me to seek a more cost efficient source of lipo packs.

Since it's clear to me that the maxamps packs are over rated, I think I'll try the truerc packs. I figure that a true 10C pack should be able to deliver all of the current that my setup could need.

Oddly enough, I have a "Hi-Po" Twenty 4400mAh pack. I probably paid too much for it at $160, but that thing kicks butt. I run it until the esc cuts out and it's barely warm. When I put it on the balancer, it balances almost immediately. With the Maxamps packs that I have, I usually have to wait for them to finish balancing EVERYTIME I charge them.

OK, I'll give truerc a try. I just hope that he ships his batteries a bit quicker than he ships his becs. Man, I don't mean to sound like a whiner, but all of this waiting is making getting setup a PITA. I'll tell you who has good customer service, it's RC Monster. Mike ships within a day or two of your order. Amain is quick too. If I order in the morning, it either ships the same day or the next morning.