Save energy - longer time between charges
Seems like this is perfect for RVing! Save energy! 25 percent energy savings!
Forum Discussion
LOL... modern day snake oil
If you're interested in an electrical engineer's opinion
https://www.youtube.com/watch?v=zKasA4HxaGY
If you're interested in an electrical engineer's opinion
https://www.youtube.com/watch?v=zKasA4HxaGY
