90 ah batts for 542 shipped...

Should have waited until next week. They will be tweeting the C rating on them. Their supplier has said 20c but they have not confirmed. If they really are 20c (hard to believe) they are a great deal.
We asked that owner of full tilt last weekend what the C rating was and it was like 15c or 20c I forget exactly but it was up there. I was sure to check because I have a few buddies with large builds looking for batteries and I think they are going with full tilt... another thing is u gotta look at warranty. Some batteries for lithium are only warranty for 2years, I think full tilt said 3year warranty and the batt should last 3-5years. So that's better then some companies that rated their batts to last two years. The convo with full tilt is on my buddies phone so I don't have it exactly but I do know I was happy with full tilt awnsers to our questions .

 
Based on what? If you have large enough AH you will achieve the same amperage output at 3C versus lower AH higher C.
Based on cell volatility. 40ah 3c is inherently going to have a harder time with a continuous 120a draw than 40ah 15c. You can argue that 300ah 3c will sustain a 900a draw longer than a 100ah 9c battery but when the cost is almost equal (300ah 3c vs 300ah 20c) why wouldn't you go with the one that will handle more demanding current draw?

 
Based on cell volatility. 40ah 3c is inherently going to have a harder time with a continuous 120a draw than 40ah 15c. You can argue that 300ah 3c will sustain a 900a draw longer than a 100ah 9c battery but when the cost is almost equal (300ah 3c vs 300ah 20c) why wouldn't you go with the one that will handle more demanding current draw?
cost is not equal. the 90 ah winston is still cheaper than a 40 ah juicebox/xs power etc.. you can do 270 ah worth of winston for 60 ah of the other stuff.

 
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