07-30-2012, 05:28 PM
if you know someone in the IT industry ask them if they have any of the 12v 7ah from UPS units. This is a common size used in the UPS systems and happens to match what many of us use for tubes/toons for sonar. Most of the UPS systems we have at my work have a set of these batteries in them and when one goes bad they replace them all. So that means each time they remove them to send them off for disposal I get a chance to check for any good ones still in the batch.
Clearly part of their life is used already but when something is free and lasts for a season or two it seems worth it to me.
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Clearly part of their life is used already but when something is free and lasts for a season or two it seems worth it to me.
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