New battery charger technology?

[Mark Rosenkrantz]

It's all about the pulses.  It's just good science.   ;-)

Mark

PS- I never did a ton of research here, but I *do* know CTEK is amazingly
small and I was doubtful.  But I've seen them revive batteries that others
can't.  From what I've been told, Optimas aren't warrantied dead until
they've had a revive attempt with a CTEK... in Europe those chargers were
mandatory equipment for several manufacturers.  All I really know... the
modern chargers just plain work really well.

On Tue, Aug 2, 2011 at 10:22 PM, Huw Powell <audi at humanspeakers.com> wrote:

> (resending from my subscribed address)
>
> The old style were just power supplies, basically - 15 volts or whatever as
> long as they were on, which was really hard on batteries if they got left on
> too long.
>
> The new ones are quite complex, and monitor the actual battery voltage.
>  They turn off when the battery is at some voltage like 13.2, then back on
> when/if it drops to 11-something, and stop charging when finished, lighting
> up a green light or what have you.  I think that's what the manual for mine
> said it did, anyway.
>
> They are so light I don't even think they have transformers.
>
> Basically I think they "charge with current" rather than "voltage".  I have
> an old but similar B&D "univolt" charger (for cordless drill batteries etc.)
> that will charge any voltage battery that can be plugged into it.  Tells you
> when it's done, and never heats the battery up.
>
> Probably about half of this is true, I'll leave it up to you to guess which
> half, since I don't know.
>
>
> On 8/2/2011 8:35 PM, Mike Arman wrote:
> >> From: Huw Powell <audi at humanspeakers.com>
> >
> >> Subject: Re: Charging C4 Battery using jumper positions
> >
> >>
> >> I'd also recommend buying a new charger, the modern ones are much more
> >> battery-friendly, and the $40ish 2/10/50A ones can start a car.
> >
> >
> >
> > I'd be interested in hearing a bit more about this new battery charger
> > technology. I have this ancient device which appears to have been signed
> > on the back by some guy named "Thomas Alva Edison" (whoever he was) in
> > my hangar that I've been using for years - always interested new and
> > improved ways to spend money on tools and equipment!
> >
> >
> > Best Regards,
> >
> > Mike Arman
> > 90V8Q, other stuff with lead-acid batteries, too.
>
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