You can restore car, truck boat and solar batteries at home with this simple device that you can make for free. I have been using this homemade device for about ten years now with great results.
Under normal use a lead acid battery will built up lead sulfate crystals on the plates. These crystals fill up the pores in the lead plates, reducing the amount of surface area available for the normal chemical reactions which take place under charge and discharge conditions.
When a lead acid battery is cycled long enough these crystals will reduce the usable amount of energy left to you. Eventually the battery will fail and need to be replaced.
But this does not mean that the battery is junk. It can be restored.
First I will show you the simple free device that I made to restore batteries. I made this using all recycled materials many years ago and it still works great today.
Here is the device I use:
And you can see that I am restoring an old lawn mower battery at this time on the video.
Here is the same lawn mower battery about a week later starting up the lawn mower:
Now please forgive the dates on the videos. Back then I was not working full time on YouTube so my uploads were sporadic and not in any order.
But you can see it is the same battery.
I later wrote an article on how this works and how you can build one yourself for free here:
http://www.thedoityourselfworld.com/articles/article.php?id=11478
Please let me know if anyone is interested in knowing more about this device. And feel free to ask any questions you may have as well.
I made an entire series that leads you step by step on how to build your own right here:
http://www.thedoityourselfworld.com/articles/article.php?id=11471
In the article above I show the parts list but you can source everything yourself for free like I did long ago.