Re: Multiple lead-acid charging

eromlignod wrote:
> Is there I way I could arrange rectifiers to contol the leak between
> batteries?
> 
> I'm not very good at doing ASCII schematics, but I'll try to explain.
> If all of the positive posts of the batteries had forward diodes to a
> common bus, forcing the current to only travel in the discharge
> direction, would that prevent charge transfer between batteries?
> 
> Obviously that wouldn't allow re-charging, but couldn't I also have
> reverse diodes that only allow inward (charging) current flow that
> connect to a separate "charging" bus?
> 
> ...or are these just wacky fantasies.
> 
Afraid so. Losing battery voltage (and watts) in series diodes isn't 
normally a good idea.

It would be possible to produce some complex design that isolates 
individual batteries and charges them, whilst leaving the remainder of 
the array connected to the load via, say, power FETs. However, if the 
batteries are closely matched, none of this is necessary - just routine 
maintenance will do the job.

--
Sue