Goal Zero 11004 Sherpa 50 Silver Portable Recharger

• Charge in 2-3 hours from wall, or 4-6 hours from car, or 5-10 hours from solar (Goal Zero's Nomad 13 solar panel sold separately)
• Sample run times: laptops 1-3 hours, tablets 15 plus hours
• Bolt-on inverter converts Sherpa 50 into a wall plug (sold separately)
• Compact and lightweight - less than 1.5 pounds
• Includes Sherpa 50 and AC wall charger

I purchased the Sherpa 50 to charge my iPhone and iPad 3 while camping. When fully charged it will charge up the iPad once from a near fully depleted iPad battery, or give 2 charges from 50%, in my experience (YMMV)

The Goal Zero system uses their own connectors which work nicely between their batteries, chargers, and solar panels. Since I already own the Sunlinq 12w and 25w panels, I needed to splice my own connectors to make these work together. I bought the Goal Zero 6' 8mm input cable extension and spliced a connector for the Sunlinq. I was able to charge the Sherpa 50 in about 4 hours from 60% to a full charge while the Sunlink 25w panel was in full sun. It would be easier (and maybe quicker) to use the Goal Zero panels, but I already own the Sunlinq.

Overall I am very pleased with the Sherpa 50; this is a well made high quality unit. My only criticism, is that the 8mm extension cord did not fit the Sherpa. I contacted customer service and they responded the next day, acknowledging the problem and recommending a fix (shave 1/8" off of the plastic connector barrel), which worked perfectly.

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