SunJack 20W is the ultimate in energy independence - powerful enough to collect and store enough energy for 8 smartphones after just 5 hours of sunlight. Detach a battery pack and power all your devices on the go while the other battery continues to charge, or charge both battery packs simultaneously. No other solar charger has dual USB ports that can punch out a full 2 amps of power.
Ideal for off-grid use and emergency preparation for an entire family. Durable, portable, and powerful, SunJack 20W will keep you charged 24/7.