How to Turn an Old UPS into an Alkaline Battery Charger!


Source: afrotechmods

1 Comment

  1. johnsimons May 13, 2011 5:07 am 

    I find those large SLA batteries for $5 each, from a battery
    refurbisher/surplus store.My battery had a huge crack in it too. I’m not kidding, that thing never worked.I heard the charger start up one morning, and instead of stopping in 10
    minutes as it usually does, it continued to be on for 5 hours. I pulled
    the plug and eventually opened up the battery pack.

    UPS Battery

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