Heavy Duty Trolling Motor battery box including 12V 100Ah Lithium battery all in one PowerStation turns your normal 12V battery into a multi-functional power box. This battery box is perfect for trolling motors, RV, Camping, off-roading, and Solar power storage Battery Box Dimensions 16.75 in x 10.00 in x 12.81 in. Fits 12V battery group size 24, 27 and 31. Perfect off Grid Power Bank Equipped with Dual USB ports, 12V dc power outlet, Voltmeter, kill switch, and a circuit breaker reset. Keeps your battery safe; limits water entry, effectively collects battery acid, allows adequate ventilation, and protects against accidental contact of battery terminals. Engineered and designed for rugged environments; impact resistant down to -20 degrees Fahrenheit, withstands acid, gas, oil, and other contaminants, and immune to UV exposure. Designed for safety with built in Battery protection BMS. BMS provides high voltage protection, low voltage protection, over high current protection, high temperature protection, short circuit protection, and over charge protection. Designed to be used in parallel or in series with a maximum of 4 identical batteries. Make sure to only use a compatible lithium charger for this battery. Having loose terminals will cause a buildup of heat resulting in damage to the battery. Mighty Max Battery 12V 100Ah Lithium Battery with Group 24 Smart Battery Box for Toy Hauler