The "Boosted Battery" settings in the Mobius app, deal directly with extending the life of your battery. This means that when you place the Vectra in "Boosted Battery" mode it will operate at 0% intensity to save power on the Battery Backup unit. This allows your Battery Backup to last longer on a single charge.
The "Boosted Battery" setting is similar to an energy-saver setting on other devices. While this setting is not enabled, it will not change the intensity of your Vectra pump. For example, if you change the Booster Battery Power set to 50%, the pump will run at 50% intensity for five minutes, then go off for 15 minutes.
With that said, this will only engage when the Boosted Battery setting is enabled to make the Backup Battery last longer. This saves power by not running the pump constantly and turning it on for a short period then cycling it off.
The "On Time" option will be the amount of time the pump runs, and the "Off Time" is the time the pump will spend off. So this will cycle the pump, running it for 5 minutes, and stopping for 15 minutes on repeat. The boosted battery settings overrides the Battery Backup Speed Setting.