The solar panel does not hold a charge it produces power when it is exposed to sunlight. You can store the power it produces in a portable recharger. The Boulder 30 can be used to power any Goal Zero recharger.
The Boulder 30 can be used to power any Goal Zero recharger. For the amount of Watts it gives, it will be most effective with the Escape 150, Yeti 150, Yeti 400, Yeti 1250, or Sherpa 50.
Delivers up to 30 Watts of power, but the angle of the panels and the cloud coverage can impact its performance. Avoid the shade. It will not work indoors.
Solar Capacity : 30W (18-22V) | Weight : 6.5 lbs (2.95 kg) | Ideal For : Sherpa 50, Yeti 150, Yeti 400, Yeti 1250 | Chainable : Yes | Cell Type : Monocrystalline | Port Size : 8mm
Charges the Following
Sherpa 50 v2 : 4-8 Hours
Goal Zero Yeti 150 : 11-22 Hours
Goal Zero Yeti 400 : 26-52 Hours
Goal Zero Yeti 1250 : 20-24 Hours (2 x Boulder 30)
Solar Port (blue, 8mm) : 14-16V, up to 2.0A (30W max), not regulated
Rated Power : 30W
Open Circuit Voltage : 118-20V
Cell Type : Monocrystalline
Dimensions : 21 x 18 x 1 in (53 x 46 x 2.5 cm)
Optimal Operating Temperature : 2-104 F (0-40 C)