Bretford LAPTMR2 Black alarm clock

LAPTMR2, Automatic Timer The Automatic Timer allows both laptop cart electrical units to be plugged into the timer and to be powered from a single wall outlet. The timer switches the electrical current from one electrical unit to the other, preventing circuit overload. To avoid tripping of electrical unit breakers, the consistent amperage draw should average 12 amps, with no more than a 15 amperage draw for short periods. The 18, 24, and 30-unit carts require a separate power circuit for each electrical post when the Automatic Timer is not used. Not for use on LAP20ULH or LAP30ULV carts. Timer is resettable and ships standard with a four-hour charging period per electrical unit.