Quote:
Originally Posted by 1maxdude
I gotta ask, why so much hate on maxamps? I have one of their packs and it seems to be a terrific performing pack. Everyone always seems to dog on them, unless I have an exceptionally good pack from them. I don't have any graphs or anything like that but in a 5.15 lb rustler with a mamba max 6900 geared extremely high (28/83) it provides every bit of torque it needs to flip the car backwards at any speed, be it take off, mid, or top end with a pull of the trigger. Or maybe my system doesn't draw as many amps as I thought, I don't know. Its a 20c 2s2p 6000hv pack, the only other pack I can compare it to is a 10c 8000 true rc pack, but that isn't a fair comparison. I've had it since February and its as good as ever, I did do a full charge on it the other day and it took 6655 mah. Not to sound like a maxamps thumper, but I've no regrets buying the battery and it satisfies my needs. Are there that many failures out there?
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I like to question the validity of such outrageous claims. Especially when it can mean the difference between great performance for the dollar, or a big smoking heap of burnt plastic from an underrated and overstressed battery...
I ALWAYS question claims like this (may not be openly, but I always remain skeptical). Especially when it comes to RC stuff. It's nice to shed some light on how a product really performs. Plus, as a consumer, it's always in your best interest to question things. It certainly doesn't hurt.
hoober- I saw the updated graphs. Looks ok, but for about a 14C discharge, I'm not impressed with pack temperatures. Seems to me that pack resistance is higher than what a true 35C cell would be. Like you say though...many people in real life won't be pulling 60 amps continuous for approximately 8 minutes anyways, so it's a pretty invalid test as far as real world performance goes.
I asked for voltage of a single cell under a 120 amp load on another forum, so we'll see if he gets back to me with that. I want to see what the voltage looks like under such a "spike" (flipping the CBA on and off with that 120 amp load on the single cell). I figure this test is a bit more applicable to the RC world since acceleration and braking generate some decent current spikes, and it's these spikes that can hurt a pack if voltage drops far enough and often enough.