To verify the factory AH rating you would measure at the same rate the factory does. That's probably the 20 hour rate (C20; that is, current at which they'll be flat in 20 hours).
But you really don't (or shouldn't) care what the C20 capacity is. All that matters is how many AH (or WH) they'll deliver at the current your vehicle actually requires. I'm far from a lithium expert, but as I understand it, generally lithium batteries' capacity holds up better at higher currents, compared to lead batteries'. But IIRC you're looking at cheapies, so who knows. BTW, watch out for recycled (used) cells in those cheap batteries. As anyone who does business in China regularly will tell you, it's still mostly true that anything-goes-profit-above-all unrestricted capitalism and stifling authoritarianism pick each others' fleas there. Many Chinese businesses will cut any and every corner to sell cheaply with the highest possible profit. Especially with no US quality control, there's no telling what you'll get. You might get lucky. You might waste your money. You don't always get what you pay for, but you very seldom get what you DON'T pay for, and that goes triple for shady direct-import ¢r@p from China. Good luck. David Roden - Akron, Ohio, USA EVDL Administrator = = = = = = = = = = = = = = = = = = = = = = = = = = = = = EVDL Information: http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Note: mail sent to "evpost" and "etpost" addresses will not reach me. To send a private message, please obtain my email address from the webpage http://www.evdl.org/help/ . = = = = = = = = = = = = = = = = = = = = = = = = = = = = = _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
