At 06:51 PM 12/23/2011, Dennis Haynes wrote:
>Battery chargers do [not] make good power supplies unless designed
>for that extra function. Power supplies have filtered and regulated
>outputs to actually support devices or equipment

Right, that's why you need to have a battery hooked to them.  It acts
as a large filter capacitor and to a considerable extent a voltage
regulator (in combination with the charger's current-limited configuration).

Yours,
DAvid