I have a hypothetical question. If I decide to run two 2s or 3s Traxxas LiPo packs in my E-Maxx which has a Tekin RX-8 system, and despite very careful monitoring, gearing, discharging, and balancing the packs still puff within a year, would Traxxas cover that? My SPC packs have been gradually expanding over a couple months now and I decided they were no longer safe and I would love to just go Traxxas and not worry about anything.
Traxxas does NOT warrant against puffing.
Alt-248 on the number pad = °
I asked Traxxas, and the guy told me that if my truck is all stock, and my batteries are nothing less than Traxxas 5000mah 25c, my batteries are warrentied for a year. After a year, I can get a new battery for half price. He did tell me though, they are not under warrenty if the batteries are over discharged.
I know packs should not swell, period, if properly maintained and used, but I don't know what else I could have done. I balance-charged immediately after use and never ran them to voltage cut-off. The only thing I can consider is the setup I was running was too aggressive for 6s use. I've since dropped from a 2200 kV to a 2000 kV motor, and think I'll drop down to 4s packs and see how it goes.
Lastly, LiPo packs can swell as they near the end of their useful operating life.
Many times a person will forget about a situation or incident that may have an impact on battery pack life:
Maybe you didn't have the voltage cutoff right on the rx8? You have it for 6s right? Our how many cells you were running?
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I never run more than 20 minutes with my 2 6s 5000 mAh packs, always with the appropriate cutoff setting applied.
Jakey, my Emax came with a Castle 2200kv motor, a Mamba 1, a 68 tooth spur, and a 17 tooth pinion. Now, I have a Mamba 2. I have that, because my original Mamba went out a few months ago. I really don't stray from factory set ups with my RC stuff unless it's of a structural nature.