Battery Saver 24 Volt Charger Pulse Maintainer and Tester (50 Watt) 2365-24L

Mounts on Walls or In Vehicles.. Safe! Reverse Polarity Protection, no-sparks. Works with Most Size and Types of Batteries, Including SLA, GEL, Dry Cell, AGM, Deep Cycle, and Spiral Cell. Prevents Premature Replacement. Built-in LCD Digital Battery or Battery System Tester (Reads: Voltage, AMPs and Battery of Life Percentage Bar)  Auto-Pulse Technology Extends Battery Life