SlantRange systems accept power sources from 9-36V. We recommend a 3-6 cell battery.
A rough estimate to calculate the sensor's "on-time" is to calculate a battery's total capacity and then divide by the sensor's power draw (copied below). Peak draw is 3A upon sensor startup.
4P +: 14 W
4P: 12 W
3p Systems: 11W
2p Systems: 11 W
14.8V x 1300mAh = 19240 mWH or about 19.2WH
19.2WH / 11W = 1.75 hours of 3p "on-time"