Buy And Sell Car Batteries -

A healthy battery should read about 12.6V when fully charged.

Check Facebook Marketplace, Craigslist, or Nextdoor for "parting out" posts or people cleaning out garages. Many will give them away just to have them hauled off.

Many "dead" batteries are just heavily sulfated. Using a smart charger with a "repair" or "desulfation" mode can sometimes bring them back to 80-90% health. buy and sell car batteries

To make a profit, you need to source batteries at little to no cost or buy used ones that still have life left.

If you want to sell a battery for (higher profit) rather than scrap (lower profit), you must ensure it’s functional. A healthy battery should read about 12

People on a budget, DIYers, or those with "beater" cars.

Some states have limits on how many "hazardous waste" items you can transport without a permit. Check your local EPA guidelines if you plan to move dozens at a time. Many "dead" batteries are just heavily sulfated

Use a battery load tester to see if it holds voltage under stress. If it drops below 9V during a 10-second crank test, it’s likely bad.