The use of solar energy has not been opened up because the oil industry does not own the sun.
                                                                                                             Ralph Nader

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Solar Power

I have been blessed with friends who have donated all of these to me. I find them all really useful. I have not owned the WakaWaka for a cycling season yet, so I do not really know how it performs. The Golden Child Solar Paks took a few days in Scandinavian sin to charge on my bar-bag. The battery was big enough to charge my phone and two iPods.

​Both the WakaWaka and the Solar Oak can be charged via a USB cable as well

Golden Child Solar Pak

WakaWaka

WakaWaka waterproof case

From the WakaWaka website

The WakaWaka Power+ is a durable, lightweight and compact solar charger that is capable of charging virtually any type of (smart)phone or small electronic device within just a few hours and providing up to 150 hours of safe, sustainable light.

• Full battery after 12-24 hrs in the sun
  
• Completely charges a smartphone in ~2 hrs 
  
• 4 light settings: from 5 to 75 lumen
  
• Flexible positioning: table top, on a bottle, hanging from the ceiling
  
• SOS emergency beacon
  
• Patented Intivation SunBoost chip
  
• 100% recycled PC-ABS, high impact resistant

From Golden Child Solar Pak website

Solar Pak ™
The Solar Pak ™ is the perfect phone solar charger for your small electric devices. Free yourself from the main grid, and charge your devices with solar energy.

Solar Pak ™ Specifications
General

• Battery Type: Highest Quality & Safety Lithium-Polymer
• Power Capacity: 2800mAh/3.7V
• Solar Panel (Mono-Crystalline Silicon): 5.5V/110mA
• Rated Input: DC 5V/500mA
• Rated Output: USB 5V/2000mA
• Dimension – Product : 104 x 61 x 11mm.
• Dimension – Packaging: 183 x 131 x 35mm
• Weight – Product: 96g
• Weight – Product + packaging: 200g
• Charging time:
• Through Solar Panel: 13-16 hours (under full sunlight conditions)
• Through USB input port: 3-4 hours