extend the useful life of your sealed lead acid batteries by adding water to them

In this video I talk about how to extend the useful life of your sealed lead acid battery by adding water to them. The biggest killer of sealed lead acid batteries is that over time the water gets cooked out of them (just like any other lead acid battery). I have used this technique many times with mostly good results. It is also possible to get usable seal lead acid batteries for free that have been recycled because they simply dried out.
Source:http://www.youtube.com/watch?v=rScSEpLdxQg