Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Lithium-ion 12v Battery Replacement

serialk11r · 09-12-2019, 01:47 AM

If you use caps, go small and pair with a battery, unless you're plugging your car in everyday. Caps self-discharge much faster than batteries do, so you really want to just use the minimum amount to boost the starting capability if you absolutely have to.

Honestly, LTO has made the typical activated charcoal EDLC pretty obsolete. LTOs have absurdly high power density and cycle endurance. If you want to save a few bucks, you can get vanilla LiFePO4 and pair it with supercaps, but that combo will self-discharge faster and the battery can't go below freezing.

Maybe someday we'll have carbon nanotube EDLCs that can completely replace starter batteries, but for now a battery is still good to have.

09-12-2019, 01:47 AM	#259 (permalink)
serialk11r Master EcoModder Join Date: Jan 2012 Location: United States Posts: 1,756 spyder2 - '00 Toyota MR2 Spyder Thanks: 104 Thanked 407 Times in 312 Posts	If you use caps, go small and pair with a battery, unless you're plugging your car in everyday. Caps self-discharge much faster than batteries do, so you really want to just use the minimum amount to boost the starting capability if you absolutely have to. Honestly, LTO has made the typical activated charcoal EDLC pretty obsolete. LTOs have absurdly high power density and cycle endurance. If you want to save a few bucks, you can get vanilla LiFePO4 and pair it with supercaps, but that combo will self-discharge faster and the battery can't go below freezing. Maybe someday we'll have carbon nanotube EDLCs that can completely replace starter batteries, but for now a battery is still good to have. Last edited by serialk11r; 09-12-2019 at 01:53 AM..