The salesman told me that if you just rub each end of the battery briskly against some rough cloth, like denim, it will remove the corrosion. He also suggested using a pencil eraser to rub down the contacts inside the electronic device. Put it all back together again — and it should work!
How long can I run my car battery?
So, find your reserve capacity, usually at least 125 minutes on most newer car batteries. Then measure the amp draw on the battery with just the radio running. If it’s less than 25 amps then you have at least the reserve capacity amount of time until you run into problems.
What do you do when your car battery is completely dead?
The most common way to deal with a dead battery is by jump-starting it. All you need to jump-start a car is a set of jumper cables and another car (a good Samaritan) with a functional battery. Keep in mind that you should never try to jump-start a car if its battery is cracked and is visibly leaking acid.
How do you bring a dead car battery back to life?
Prepare a mixture of baking soda mixed in distilled water and by use of a funnel pour the solution into the cells of the battery. Once they are full, close the lids and shake the battery for a minute or two. The solution will cleanse the inside of the batteries. Once done empty the solution into another clean bucket.