Simply add a Battery and access power & voltage readings of your battery at any-time! The innovative KT Portable Battery Box is designed for transporting Deep Cycle Batteries with ease, monitoring battery voltage and powering or charging 12 Volt devices from one central unit. Designed to suit most 100Ah batteries, the KT Battery Box features high current bolt terminals to connect high current loads, making it excellent for applications including 4WD off-road adventures, camping trips, work applications and more. Monitor the voltage of your battery at any-time & identify when it may be running flat 2 x 12 Volt Marine Grade Cigarette Accessory Sockets for charging & powering 12 volt devices Suitable For Charging Via 2 x USB inputs 1 x 1Amp, 1 x 2.1Amp (3.1 Amp total) Built In 16Amp Circuit Breaker for power accessory socket protection & protecting sensitive electronics.