https://community.bt.com/t5/BT-Devices/CyberPower-Battery-Backup-Battery-Life/m-p/2445371#M34026 <P>Where I live is subject to frequent power cuts, hence my purchase of a CyberPower battery backup. I already have a more powerful UPS for computer and monitor. Instead of connecting my&nbsp;CyberPower direct to the mains, if I connected it through my main UPS would this extend battery life during a power cut?</P> Sat, 04 Oct 2025 15:50:11 GMT incsoftware 2025-10-04T15:50:11Z https://community.bt.com/t5/BT-Devices/CyberPower-Battery-Backup-Battery-Life/m-p/2445371#M34026 <P>Where I live is subject to frequent power cuts, hence my purchase of a CyberPower battery backup. I already have a more powerful UPS for computer and monitor. Instead of connecting my&nbsp;CyberPower direct to the mains, if I connected it through my main UPS would this extend battery life during a power cut?</P> Sat, 04 Oct 2025 15:50:11 GMT https://community.bt.com/t5/BT-Devices/CyberPower-Battery-Backup-Battery-Life/m-p/2445371#M34026 incsoftware 2025-10-04T15:50:11Z https://community.bt.com/t5/BT-Devices/CyberPower-Battery-Backup-Battery-Life/m-p/2445417#M34027 <P>Well your CyberPower battery wouldn’t be drained at all while connected to your UPS as it’ll think the mains is still connected. I suppose from an efficiency perspective you’re adding a couple of watts for the CyberPower unit, plus the hub (14 watt I think) to your UPS load. But why have the CyberPower pack in any case if you’ve got the UPS?&nbsp;</P> Sun, 05 Oct 2025 07:12:03 GMT https://community.bt.com/t5/BT-Devices/CyberPower-Battery-Backup-Battery-Life/m-p/2445417#M34027 pddco 2025-10-05T07:12:03Z