Weighing in at under 5 lbs., the Boost Pro is easy to manage, easy to store, and offers best in class power. Boost Pro will easily charge most electronic devices through USB ports when you are on the go. Drop the 40 lb. boat anchor you are using today and pick up the lightweight Boost Pro. 12V and 24v jump-starter, back up charger for all brands of cellphones, tablets, and other portable electronics Powerful, 30,000mAh high capacity Nano Lithium batteries, Fast Charging with low Self-Discharge cycle, Cranking Amps: 12V-600A 24V-300A, Peak Amps: 12V – 1200A 24V – 600A, Includes built-in safety features for battery protection, LCD Screen for battery. Functions include jumpstarting of trucks, cars, equipment, boats, and ATV, and charging of electronic devices phones, and tablets