Solid state Bedini charger from John Peters

[guruji]

Hi Niofox how do you drain the batteries cause it's a bit risky to health? You have a type of pipet or something to be safe?
Thanks

[niofox]

Hi Niofox how do you drain the batteries cause it's a bit risky to ? You have a type of pipet or something to be safe?
Thanks

Nah I had no idea the dangers involved and just emptied it onto a spot on my lawn.  Don't worry though, I will not be throwing anything out of a battery again in that manner.  I've since learned to use a dish with baking soda.  I think if I ever actually do try it again (doubt I will) I'd probably keep the resulting mess in a bottle somewhere as a souvenir or something.

[niofox]

Hi folks, Hi niofox, it looks like in the circuit you posted that its missing a resistor between the collector and base, my circuit has a 15kohm though usually a 20k is used. Though if your getting this circuit to oscillate without it, i sure wonder how.
peace love light
Tyson

Unless my project board has something shorted, yes I am running solid-state without the resistor between the collector and base
There's only one difference I've noticed with this configuration:  If you somehow stop the self-oscillation without disconnecting anything ... like using a pot and putting it too high or low, the self oscillation doesn't restart simply but putting back the pot to its working value.  You have to disconnect the input power, than reconnect it.  In my setup I have the -primary running through a simple switch.  So I have to flick it off, then back on to restart oscillation
The thing never stops under any other circumstance I've come across however.  So I just leave it tweaked at 320 ohms now (no pot) and in the whole week I have been testing this it has never stopped without my intervention

Also as you can see on the diagram, I have dispensed with the diode/resistor from the base to -primary.  I found that with the diode the charging process is reduced a tad, and with the 10k resistor there is no difference that I can see with my cheap multi-meters.  I found this particularly interesting and was thinking of see what the effect is in the original SSG setup with the rotor

[guruji]

Hi Niofox interesting about your modification. It would be good to try if you said it works too.
Thanks for sharing.

[mscoffman]

Unless the battery has been abused somehow, emptying the cells
contents make no sense. The sulfur comes out of solution in the
battery during discharge so you really should try to allign the ratio of
electrolyte to water concentration with the level of charge the battery
was at, at the time you emptied the contents. The law of conservation
of matter says you would only ever need to replace water which
evaporates or gets electrolysed out of the cells. Adding commericial
battery additives is the exception. I've heard of cleaning the battery,
off with, but not putting baking soda into a a/l battery.

:S:MarkSCoffman