Posted by Marc Martin on
URL: https://www.es-forum.com/Charging-RV-batteries-with-dirty-electricity-tp1548394p1548402.html

> A battery is DC current, so there are no frequencies involved. The
> frequency ist just 0 Hz.
> So it is impossible to transform dirty electricity into a battery.
>
> So, no filter is needed.

Unless he's reacting to the frequencies on the power cord which
are feeding the battery? But yes, anything downstream from the
battery seems like it should be fine.

Marc