For sectionals or larger sized power pieces the E10 Power Battery for 1-4 Motors will be an impressive companion It allows for up to 2000 motorized functions without a power outlet on a single charge and is the most efficient for its size in the industry It has an LED power indicator and a buzzer alert for an audible charging reminder orvisualize your packs power level review charging history receive low power alertsrecharge reminders and shut off power remotely in the app to conserve power when your pack is not in use