BFGWOVR48VVPro Charging Eagle Performance Battery Fuel Gauge 48v Rectangle Vertical Model: BFGWOVR48VV Accurately Displays Battery Pack State/Charge Status With DVL - View Charge Status From Your Wireless Device TROUBLE FREE - Easy Installation - Connect It and Forget It! Advanced Microprocessor Constantly Evaluates Battery Pack State Durable, Water Resistant - Made in the USA and Built To Last Nine LED array shows level of battery pack depletion LED array flashes while charging the battery pack Low Batter