At 10:33 AM 2006-01-14 -0600, you wrote:

>I have in service an Interstate brand 8D-PHD lead acid deep cycle battery that is nine years old and at nearly 80% of its brand-new capacity.

How do you know it's at 80% of it's brand-new capacity?

> * Regular checks of electrolyte level topped off with distilled water
> * Regular specific gravity checks to watch for cell degradation
> * Rgular cleaning of the battery case and terminals

How often is regular?  What do you look for when deciding to clean the case and terminals?

>* Semi-annual discharge followed by an equalization charge and then return to float

What do you mean by equalization charge?

Tony







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