Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Test: Alternator vs. no alternator = 10% MPG gain @ 70 km/h

brucepick · 01-02-2012, 06:28 PM

Aha. So a big enough Li battery could possibly enable you to run without the alt for some considerable time/distance, if you can charge it up from AC when not driving.

This site: LithiumMoto
offers a 11.5 AH 12V* battery for $300. Unless there are much more economically priced Li batteries available, it looks like you'd need $900 for ~34 AH of 12V, and more $$ for more AH.

*I think a Li cell pack isn't really 12V, right? This raises more questions on cell voltage and charging. Is all that already covered somewhere else on this forum?

Oh, I got it. It's on this page: http://ecomodder.com/forum/showthrea...ies-18547.html

01-02-2012, 06:28 PM	#152 (permalink)
brucepick OCD Master EcoModder Join Date: Dec 2007 Location: Eastern CT, USA Posts: 1,936 Outasight - '00 Honda Insight Team Honda Gen-1 Insights 90 day: 54.18 mpg (US) Thanks: 431 Thanked 396 Times in 264 Posts	Aha. So a big enough Li battery could possibly enable you to run without the alt for some considerable time/distance, if you can charge it up from AC when not driving. This site: LithiumMoto offers a 11.5 AH 12V* battery for $300. Unless there are much more economically priced Li batteries available, it looks like you'd need $900 for ~34 AH of 12V, and more $$ for more AH. I think a Li cell pack isn't really 12V, right? This raises more questions on cell voltage and charging. Is all that already covered somewhere else on this forum? Oh, I got it. It's on this page: http://ecomodder.com/forum/showthrea...ies-18547.html __________________ Coast long and prosper.* Driving '00 Honda Insight, acquired Feb 2016. Last edited by brucepick; 01-02-2012 at 06:37 PM..