1. This smart battery box is made of impact-resistant PP housing, which enables the battery box to withstand shock, impact as well as battery acid, gas, oil, dust and corrosion. 2. It is ideal for small boats, solar panels, electronic devices, camp lights and fridges. 3. It is suitable for all 12V batteries. 4. Carry it at any time, go out to use electricity, charge more conveniently, and monitor the voltage in real time. 5. Dual USB output, independent switch design. 6. External dimensions: 424x306x251mm, inside dimension: 338x220x206mm
