12V 60A car battery , maybe dead?

[guruji]

Hi GL thanks for this circuit. I 've built this with a 150nf cap and a 1k pot on about 100T coils. Transistor d13009.
No success yet.
Any help please?

[guruji]

Ok found the fault working now
Thanks

[seanK]

Hi GroundLoop

I have played with this circuit a while ago and it seemed to work well for small NiMh batteries I had.
I was wondering what would need to be scaled up to work on large capacity batteries (i.e. 100+ah) ?

Sean

[Groundloop]

Hi GroundLoop

I have played with this circuit a while ago and it seemed to work well for small NiMh batteries I had.
I was wondering what would need to be scaled up to work on large capacity batteries (i.e. 100+ah) ?

Sean

Sean,

The circuit will work on larger batteries also.
You just need to use a regular battery charger after the circuit has
removed the sulphate in the the batteries. I have not tried to scale up
this circuit, so I do not have any good advice on how to do that.
Maybe larger current capacity transistor? Fewer turns on the coil with
thicker copper wire? More bias current to the base of the transistor?
Etc..........

GL.

[seanK]

Thanks for your reply GL,

I will try your suggestions and update the post later.
Thanks again
Sean