"Dave Plowman (News)" wrote in message
...
In article ,
redwood wrote:
"Sylvain VAN DER WALDE" wrote in message
I've not yet tried it connected to a battery but it now powers on
without clicking and connecting a DVM to the croc clips shows around
12.06v or 6.02 on the 6 volt setting. I shall give it a test on a
battery tomorrow.

Is your meter reasonably accurate?
These voltage readings seem rather low.

I think the battery charger voltage increases when connected to a
battery,

That would be a clever trick. ;-) Unless there is some form of electronics
regulating the output the open circuit voltage should be very much higher
than that. Have you measured the AC voltage direct across the transformer
- ie the input to the rectifier?

I seem to recall my cheap n nasty charger puts out around 12v when not
connected to a battery, but I've seen it reach 17v when charging a failing
battery after 12 hours or so. Which I don't think was good for the battery
but at least it was an old and tired one.

I'm thinking about Heath Robinsoning something using an old 240v AC motor
and spare alternator now...