So, why go to the trouble of refurbishing your old batteries if it's easier and more convenient to just throw them out or shove them in a drawer somewhere? Well, as it turns out, there are plenty of valid reasons why you should consider refurbishing your batteries. Let's go over some of them now. It's Better for the. If you refurbish your batteries properly, there's little risk of danger. However, batteries can certainly be dangerous when not handled properly. Now that you know why it's a good idea in general to try and refurbish your old batteries, let's go over some of the methods you can actually use to refurbish them. I'll be going over. Dead batteries don't have to stay dead forever. With the proper refurbishing techniques, you can easily revive pretty much any dead battery. My goal with this article was to give you a quick guide to refurbishing batteries on your own. However, if you're in need of a more in-depth guide to.