Maybe (in universe) by TNG's time phasers have some sort of universal charge part or have a "emergency setting" that allows them to be used a battery packs for Starfleet tech.
A special mode named after Engineer Scott, following his adaptation of the phasers in "The Galileo Seven."
(While working at a multimedia company during the '90s, a co-worker named Doug modified a camcorder with a studio zoom controller. Camcorders were much bigger back then. One "wore" the camera on a shoulder, and the zoom and focus controls were right on the lens. Clamping a controller to the carry handle so that it stuck straight out the back greatly facilitated operation when the camera was tripod mounted. The pistol grip also helped when hand-holding the camera in a low-slung fashion. We later called it "Douging the camera.")