Automatic transfer switch

-> I've set up an array of batteries with an inverter to power a few
-> computers. When the AC fails, I'd like for the computers to
-> automatically switch over to the battery power. Can anyone recommend a
-> good and inexpensive automatic transfer switch which can accomplish
-> this?

To avoid any interruption, the easiest way is to power the computers
from the batteries and inverter *all* the time. Set up a charger so the
batteries are kept full whenever the AC is working.

dow