Tuesday, February 05th, 2008 | Author:

Another thing that you should be aware of when we’re discussing battery care and maintenance is battery cell contamination. I don’t know if this is common knowledge, but it definitely should be. Some time ago I watched the video “An Introduction to Storage Batteries for Renewable Energy Systems” with Richard Perez. One of the many points he made clear was how hydrometers hold a very real potential for cell contamination. Hydrometers are rarely kept sterile, in fact they are rarely even kept clean, so when you are testing the specific gravity of a cell, there’s a good chance you could be contaminating it. If you contaminate a cell with foreign substances cell damage is likely, and we know if one cell in a battery goes, usually they all got to go. Open your batteries up only when absolutely necessary, and definitely avoid sticking dirty things in them.

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