Pro Charging Systems - Delta Volt 48V State of Charge Meter (for 48v Applications only) Accurately displays battery pack state via twelve LED array that clearly shows level of battery pack depletion. Low Battery Voltage LED. Self-adjusts while charging in progress. Rugged PC ABS polymer case and water resistant design. Comes with wiring harness and installation instruction. Installation is a breeze. No cutting required, just a simple hole drilled to run harness through. For use with golf carts, hunting buggies, LSV's and more. Measures 2.4"T x 3.8"W. 48V System Configuration - 4-12V Batteries, 8-6V Batteries, 6-8V Batteries.