[ausev] Homemade battery meter?

[Erik]

On the eBay panel meters, I fried two before I realized that I needed an
isolated DC/DC to power the meter. I had it powered from my 12V supply,
which is isolated from the high voltage, except for the small leakage that
you get with flooded batteries. When I would hit the accelerator the meter
would go crazy, and after a few days it would die with a culprit burned part
on the back. Once I put the DC/DC in all was well. It actually matches quite
well with my volt meter.

Erik

On Sun, Jan 11, 2009 at 12:41 PM, gary <gkrysztopik at satx.rr.com> wrote:

> also some info here;
>
> http://www.evconvert.com/article/led-bargraph-battery-monitor
>
> Gary Krysztopik
> www.ZWheelz.com
> San Antonio, TX
>
>
>
> Steve Webb wrote:
> > Here is a link to a unit built specifically for EV conversions:
> > http://www.wacparts.com/index.php?main_page=popup_image&pID=34
> > <http://www.wacparts.com/index.php?main_page=popup_image&pID=34>
> >
> _______________________________________________
> AusEV mailing list
> AusEV at austinev.org
> http://www.austinev.org/mailman/listinfo/ausev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.austinev.org/pipermail/ausev/attachments/20090112/14142973/attachment.html