I'll second Dennis's comment of the Progressive Dynamics charger.  I just
returned from a week long trip, 'plugged in' six of seven nights and running
the stereo most evenings.  Perfect performance, totally unaware that I was
running off a charger/battery combination.
BTW, I went with the Progressive Dynamics product at the suggestion of
Dennis Haynes and his advice on that (and other related battery/charging
issues) was right on.  Thanks again Dennis, you steered me right.

On Feb 13, 2008 3:12 AM, Dennis Haynes <d23haynes57@hotmail.com> wrote:

> You should consider one of the progressive dynamics chargers. Designed and
> listed for RV applications and with the charge wizard, is an excellent
> charger. It is also designed to used as a power supply with a clean DC
> output so no hum and other noise on your stereo. The Surepower will take
> care of charging both batteries.
>
>