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Originally Posted by zeropointbug
Whow, sounds crazy man. Why did you mill the section out of the case? Why did you break the side off too? You didn't have to rape the poor Quark. :005:
That really sounds bad that sparks came from the Quark when you first hooked it up... sounds like you shorted something out? I honestly can't think of anything that the Alumina would have done it, that's weird.
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well the humidity annoyed me, and that's enough for me to mention it :)
the shim I have is thinner than the stock aluminum shim + heat pads. if I didn't mill that out, the caps would hit the case, before the FETs.. if I hadn't trimmed the edges of the case, they would have "locked" into the channel's in the case, and the copper shim wouldn't have touched the bottom of the case at all. can tell it's lower in the case, by the feel of the button as well.. pressing the button in to what would normally supress the button, is only touching the button now. I have to press in twice as far as before.
What makes me wonder about the Quark, is I had run it for about a minute at up to say 1/4 throttle on my bench last night.. and ran it for about 5 minutes in the parkinglot, before racing started, and it worked fine.. turned it off, unplugged it. then when I went to plug it in to race, the sparks and smells.. Makes me wonder if it was just a freak accident, that would have happened even if I hadn't done any mods on the controller.. just a component, that finally decided to fail? odd that it happened when I plugged the pack in too.. wasn't an overheating issue..
but, one question I'm extremely confused about..
I ran today, and had no problems as far as batteries.. I've only run these packs in parallel. I usually charge the packs till they peak, then balance them, then run em in parallel.. rinse repeat.
I charged one pack, and it was 42min, and 1.836Ah in.
The second pack just finished, and it took 1 hour, 20min, and 3.336Ah in..
I have no idea why these are soo off.. the only time I havn't run them in parallel, is for programing the controller. I'll try and find a DMM at work tommorow, and check the voltages again. both packs peaked with 21V. if both packs are at 21V, they should both be fully charged correct? any other way to check if everything's in check? charging was at 4amps on both packs.