How to Repair a Car Battery Cell

A car has many technical aspects and it is inevitable that parts will malfunction.


You might not know where to look when trouble arises. Looking under the hood can seem scary, even if you think the problem is with the battery.


A common complaint regarding the battery cell is that it is dead or is not holding enough of a charge to power your vehicle. Instead of rushing to mechanic, it may be a good idea to try and fix the problem yourself.

Things You'll Need

  • Flathead screwdriver
  • Water
  • Baking soda
  • 12-volt car battery charger
  • Open the car's hood using the lever under the steering wheel on the left side. Use the propping mechanism provided to ensure the hood stays open and you can work on the battery cell.

  • Use a flathead screwdriver to pry the lids off the cells on the top of the battery.

  • Buy distilled water and fill these cells about a half an inch from the top and replace the cell lids in the same way that you opened them.

  • Remove the battery cables from the positive and negative battery posts on your battery using a wrench or a pair of pliers.

  • Mix a couple of teaspoons of baking soda into a cup of water and slowly pour the mixture onto the battery posts and the connectors of the battery cables.

  • Reconnect the battery cables to the battery. Now plug a 12-volt car battery charger into a standard 110-volt outlet in order to charge your battery. Remember that the red clamp is for the positive terminal and the black clamp is for the negative terminal.