AUTOMNT Battery Auto Care Discharger：If the battery is set in a fully charging state for a long time, it is easy to aging and can not accumulate electricity. The battery manufacturers always recommend about 3 months to do a charge and discharge action to maintain the battery activity. But generally used for emergency lighting, exit lights, telephone switchboard standby power, personal computer with uninterruptible power supply (UPS) batteries will start the discharge action when the AC power failure. In the AC power stable country, it is very rare a long blackout and always a sudden power failure to know the battery has been unable to accumulate electricity. So it can not play the effect of emergency use, and cause the battery waste and environmental issues. AUTOMNT is for this type of equipments connected to the AC power, the AC power will be automatically every 3 months to disconnect, so that the battery within the equipments automatically discharge, to activate the battery effect. As to disconnect time, users can set their own adjustments, see the instructions in detail.