Finished the third one today.
The first one hooked up to two of my 12 amp hour 12V batteries,
Primary Secondary
13.25 13.40 Start
13.09 13.69 12 hours later
12.89 13.75 after 24 hours
Nice!
The second one I hooked up to solar cell with a weak battery. I am hooking this up to a solar cell connected to a very weak nicad battery, it is running the relay, and i think this will go 24/7 so will condition the bad battery I have and see what happens with it after 2 weeks.
The third one I built I hooked up to the windmill generator on my old SSG. What I love about this is since it oscillates, it does not put hardly any load on the windmill coils, and the out put is charging another 12V 12amp hour battery.
I tried this at 24V on my semi batteries and it did charge nicely for a while, and drew next to nothing. But... it only got the batteries up to a point of around 12V and then stopped. I am thinking that I would need another type of relay for these, or maybe multiple relays.
It is so nice to be able to disconnect the charge battery and not worry about a transistor. It is worth the effort to mute these with a towel as they give and give and give.
I am shocked at the charge rate!
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