Go Back   EcoRenovator > Improvements > Energy Storage
Advanced Search

Blog 60+ Home Energy Saving Tips Recent Posts Search Today's Posts Mark Forums Read

Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 12-30-18, 06:58 AM   #1
Super Moderator
Piwoslaw's Avatar
Join Date: May 2009
Location: Warsaw, Poland
Posts: 961
Thanks: 188
Thanked 110 Times in 86 Posts
Default What to do with a lead-acid car battery?

I recently bought a new car, but it came with a cheap, undersized battery. For the engine Start-Stop function to work, I had to get a larger AGM battery. Now I have the old one as a spare.

What can I use a 12V, 510A, 62Ah lead-acid battery for?
  • I could keep it in the car, wired parallel, and delete the alternator, but the alternator doubles as a starter. And the ECU already turns off the alt field when the battery is topped off.
  • I would love to use it to catch solar or wind, but our house is shaded year-round under tall trees.
  • I could charge it at off-peak hours and power the house at peak hours, but our utility does not offer such a tariff, only flat rate.
  • I could just leave it in the garage, topping it off every weekend with a trickle charger, and use it for testing random electronics projects, but that seems like a waste of a nearly new battery.
Any other ideas?

EDIT: One more idea would be some kind of e-assist project for a bicycle or bike trailer.

Ecorenovation - the bottomless piggy bank that tries to tame the energy hog.

Last edited by Piwoslaw; 12-31-18 at 04:27 AM..
Piwoslaw is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 07:59 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Ad Management by RedTyger
Inactive Reminders By Icora Web Design