Goal Zero Flip 20 Recharger. Double the power for longer excursions. Designed to give multiple charges on small devices and quickly charge up from USB or sun. 200% Backup power for your phone Small and portable, 5200mAh designed to give two full phone charges. Solar Ready Charge up on the go from Goal Zero's line of portable solar panels No Cable Needed Flip USB for tangle-free charging from any USB port in 4 hours. Micro-USB cable included. Pass-through Charging Charge the Flip and a phone all at once.