POWERplus® Lizard USB Powerbank SOLAR AA BATTERY CHARGER with 4 AA rechargeable batteries Enjoy the freedom of mobile energy! The Lizard is a solar AA battery charger and USB powerbank in one device. Normal solar powerbanks use powerpacks as energy storage, which means that after the lifetime of the battery pack (generally 2-3 years at daily use), you cannot use the powerbank anymore. The Lizard uses rechargeable AA batteries which are available everywhere.