Charge for 24 full hours before use. Do NOT overload! The 2500VA Blue Gate UPS (2.5KVA) has more capacity for longer backup than the lesser bluegate UPS offers. With the 2200VA unit, you can expect much more minutes of backup time on normal load. This Bluegate UPS unit will take computers and computer peripherals or domestic equipment such as TVs up to Plasma TV, decoders and such domestic electrical appliances. Bluegate UPS has gained a lot of recognition in the Nigerian market as a reliable UPS system. More users are going for this product because of the unique combination of satisfactory performance and reasonable pricing. Blue Gate UPS is relatively more affordable and still able to deliver quality performance. Your Bluegate UPS can be sure to protect your system from damage, especially an unpleasant crash when the power supply suddenly fails. Being able to achieve this protection with a relatively inexpensive uninterruptible power supply unit is certainly a benefit you should take advantage of. What's more, you prevent loss of vital data and other digital resources that can result from sudden power outage, when there is no UPS backup. Here are some of the unique qualities the Blue Gate UPS range is credited with: Lightening and surge protection Short circuit and overload protection Energy saving function with UPS green mode Line Interactive design Fully digitized microprocessor controlled SMD technology Wide input voltage and frequency window Boost and buck AVR Three LED indication for easy understanding Automatically charging in UPS off mode Automatically self detection when start up Auto restart while AC recovery Compatible with generators Intelligent battery management RJ45 Efficient and durable this Blue gate BG2500 Offline UPS features a Boost and buck AVR three LED indicators for easy understanding and is fully digitized microprocessor controlled