APC recently unveiled some new uninterruptible power supplies (UPS) units which it says are more energy efficient. These models are part of the APC Back-UPS ES line up and range from around $45 to $100.
APC said the APC Back-UPS ES line uses charging technology “which allows the product’s master outlet to sense when the computer has either been turned off or has gone into sleep mode, so it can shut off power to unused peripherals plugged into the controlled outlets.” The APC Back-UPS ES 450, 550 and 650 models feature eight surge protected outlets, with four of the outlets also providing battery backup. The APC Back-UPS ES 750 offers ten surge protected outlets, with five of the outlets also providing battery backup. There is also a 350 model that features six surge protected outlets.