Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Looking for tester for new lightweight battery

MetroMPG · 11-10-2008, 10:18 PM

Hi Tony -

I'd be interested in finding out more, and possibly testing. I've been doing alternatorless driving for three years, off and on (mostly in the summer, when electrical loads are lower, and PbA capacity is better).

See: Plug-in Blackfly: going alternator optional nets +10% mpg - MetroMPG.com

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

I was thinking about an "ideal" battery recently, actually. It would have a nominal voltage of around 13.5-14v - approximately where the car's electronics are designed to run when the alternator is on.

With the alternator disabled, my car runs at between approximately 12.3v - 11.5v under load, which really isn't ideal.

I'm ScanGauge and MPGuino equipped (for measuring fuel consumption), and reasonably knowledgeable about batteries (built/own an EV conversion - PbA).

Darin

11-10-2008, 10:18 PM	#2 (permalink)
MetroMPG Batman Junior Join Date: Nov 2007 Location: 1000 Islands, Ontario, Canada Posts: 22,537 Blackfly - '98 Geo Metro Team Metro Last 3: 70.09 mpg (US) MPGiata - '90 Mazda Miata 90 day: 54.46 mpg (US) Appliance car Mirage - '14 Mitsubishi Mirage ES (base) 90 day: 51.82 mpg (US) Thanks: 4,082 Thanked 6,986 Times in 3,616 Posts	Hi Tony - I'd be interested in finding out more, and possibly testing. I've been doing alternatorless driving for three years, off and on (mostly in the summer, when electrical loads are lower, and PbA capacity is better). See: Plug-in Blackfly: going alternator optional nets +10% mpg - MetroMPG.com And: Test: Alternator vs. no alternator = 10% gain @ 70 km/h - Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com I was thinking about an "ideal" battery recently, actually. It would have a nominal voltage of around 13.5-14v - approximately where the car's electronics are designed to run when the alternator is on. With the alternator disabled, my car runs at between approximately 12.3v - 11.5v under load, which really isn't ideal. I'm ScanGauge and MPGuino equipped (for measuring fuel consumption), and reasonably knowledgeable about batteries (built/own an EV conversion - PbA). Darin __________________ Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata Honda mods: Ecomodding my $800 Honda Fit 5-speed beater Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage. Ecodriving test: Manual vs. automatic transmission MPG showdown EcoModder has launched a forum for the efficient new Mitsubishi Mirage www.MetroMPG.com - fuel efficiency info for Geo Metro owners www.ForkenSwift.com - electric car conversion on a beer budget