The solar panel does not hold a charge it produces power when it is exposed to sunlight. Connect it to recharge a portable power station. The Boulder 50 is best used for recharging Goal Zero Sherpa's and Yetis.
Boulder 50 solar panel works best with all of our small to medium power packs and power stations.
Sherpa 50 Power Pack: 4-6 Hours
Sherpa 100 Power Pack: 4-8 Hours
Yeti 150 Power Station: 6-12 Hours
Yeti 400 Power Stations: 16-32 Hours
Yeti 1000 Lithium Power Stations: 40-80 Hours
Product SKU: 32406
Chainable: up to 150 Watts
Weight: 12.4 lbs (5.6 kg)
Dimensions: 21.75 x 26.75 x 1.75 in (55.2 x 70 x 4.4 cm)
Warranty: 12 months
Rated Power: 50 Watts
Open Circuit Voltage: 18-20V
Cell Type: Monocrystalline