--- Mike Willmon <[email protected]> wrote:

> If it doesn't have a tranformer then it is a switch
> mode charger, or switcher. The forst thing it does
> is rectify the AC power
> coming in to make a DC signal that is then puls
> width modulated to get the correct average voltage
> the charger calls for. If it
> has a full wave recitifer on the front end it will
> conduct your DC pack in either direction. (I
> believe most smart chargers
> employ full wave bridge rectifiers - but I can't
> promise its always the case). If by chance they
> skimped on the parts and used a
> half wave rectifier it will work in one direction
> but not the other. You can test it by putting in a
> small 5-10 amp fuse coming
> from the pack voltage when hooking it to your
> charger. You can look on the data plate and see if
> it lists it as a 90VAC to
> 240VAC input. If so then you would be safe with a
> pack big enough not to sag below 90VDC or with a max
> charge voltage greater
> 240V DC.
>
> Mike,
> Anchorage, Ak.


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