Something like this http://e-volks.com/capacith_charger.html
![Question :?:](./images/smilies/icon_question.gif)
Jeremy wrote:That certainly looks like a scary bit of kit!
No isolation from the mains, so the battery is potentially sitting at mains voltage levels and near constant current charging, which will cause any lead acid technology battery to seriously over-charge if left on for long periods.
I never cease to be amazed at some of the truly inventive ways people can come up with to put their lives at risk.
Although charging high voltage batteries will always carry some risk, my view is that it's best to minimise this as much as possible. Isolation between the mains supply and the battery terminals, using a decent isolation transformer, is a must, as it reduces the accidental shock risk (if the supply is isolated, then you can't get a shock from just touching one terminal whilst standing on the ground).
Jeremy
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