Large Leisure Battery Box With Hold Down Strap Boat Caravan Batteries Camper Features: *Dual USB ports, independent switch design, power-taking design, real-time voltage monitoring *Battery box/case only. Battery is not included. *Suitable for small-boat transom applications. *It can be carried with you and charged when you go out. It is more convenient to get electricity, and real-time monitoring of voltage makes going out and camping more enjoyable. *Pressure-resistant, double-fixed base with fixed belt: The pressure-resistant material is used to make the product have a good pressure-resistant effect and will not be damaged. *Easy-access battery terminals for connecting leads. * Built-in battery meter displays current State of Charge.
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