BatteryGuard(TM)Prolong the lifeof your battery. Maximize your battery&';s performace. Excessive shock and vibration are two of the leading causes for battery failure. Megaware BatteryGuard(TM) sits under your battery and absorbs the gravity shock caused by excessive vibration and up and down bounce.Features: Reduces up to 80% of the G-shock caused by excessive shock and vibration Protect against premature battery failure Fits up to Group 31 batteries Fits virtually any size battery Great for boats, automobiles, ATVs, Trailers or anywhere shock and vibration can damage a battery Can easily be trimmed to custom shapes or sizes Save money by protecting your battery investment Quick Guide (pdf)Brochure (pdf).embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }