This Solar Power Bank has an ABS plastic body with 5V/1.2W monocrystalline cell solar panel for plenty of energy storage. 
 
3.7V 5,000mah Dual USB Outputs And 5V 1,000mah Input Works Well With High End Electronic Devices
Comes With Carabiner For Secure Attachment To Backpacks Or Bags
Quick Charge Lithium Polymer Battery
Micro USB Charging Cable