Comments on: DIY Battery Charger from a Welder http://www.solarpowerdiy.com/blog/index.php/2008/06/23/diy-battery-charger-from-a-welder/ My Solar and Home Power Do it Yourself Ramblings Tue, 10 Jan 2012 09:44:45 +0000 hourly 1 http://wordpress.org/?v=3.0.3 By: Kevin Day http://www.solarpowerdiy.com/blog/index.php/2008/06/23/diy-battery-charger-from-a-welder/comment-page-1/#comment-160 Kevin Day Mon, 28 Jul 2008 10:25:15 +0000 http://www.solarpowerdiy.com/blog/?p=20#comment-160 Mains power welders have AC output unless they specifically are labelled as being a DC welder. Hence the diodes rectifiers are necessary. Look out for a further post on this topic shortly. Mains power welders have AC output unless they specifically are labelled as being a DC welder. Hence the diodes rectifiers are necessary.

Look out for a further post on this topic shortly.

]]> By: Tony T http://www.solarpowerdiy.com/blog/index.php/2008/06/23/diy-battery-charger-from-a-welder/comment-page-1/#comment-157 Tony T Mon, 28 Jul 2008 00:16:08 +0000 http://www.solarpowerdiy.com/blog/?p=20#comment-157 Hi I too would like to be able to charge/boost charge a 12v battery at 20-35 from a mains voltage (new) welder. Why are the diodes/rectifier necessary? I thought the output at the weld electrodes is already steady DC (but haven't measured the voltage) Can one buy a ready-made bridge rectiifier or a circuit plus diodes and at what point is it wired into the welder output? A quick unplug facility is required I'm sure Thanks Hi
I too would like to be able to charge/boost charge a 12v battery at 20-35 from a mains voltage (new) welder.
Why are the diodes/rectifier necessary? I thought the output at the weld electrodes is already steady DC (but haven’t measured the voltage)
Can one buy a ready-made bridge rectiifier or a circuit plus diodes and at what point is it wired into the welder output? A quick unplug facility is required I’m sure
Thanks

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