Goalzero BOULDER 100BC, User Manual

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Q: Are the Boulder Solar Panels waterproof?

A: Yes. The Boulders are designed to withstand the elements, so they’re great for 
permanent and semi-permanent installations. What you’re recharging from the Boulders 
is what needs your help to stay dry, so keep those power packs and power stations 
covered up and protected from the dust, rain, and snow.

Q: Can I chain a Boulder 100 Briefcase with other Boulders?

A: Depends on the panels. Yes, you can chain the Boulder 100 Briefcase with other 
Boulders that have an 8mm input or input connector, like the Boulder 50 or the older 
Boulder 30, by inserting the 8mm blue-ringed connector of the Boulder 100 Briefcase 
into the 8mm input of the other Boulder Solar Panel. When chaining Boulder Solar 
Panels in configurations over 150W, you’ll need to purchase a combiner cable from Goal 
Zero. Give our customer solutions center call to determine the right cable for your setup.

Q: What can I charge directly from the Boulder Solar Panels?

A: All of our Boulder Solar Panels are designed to charge Sherpa Power Packs and Goal 
Zero Yeti Portable Power Stations. If you’re looking to recharge things like headlamps, 
phones, and other USB devices, check out our foldable Nomad Solar Panels.

Q: How long will it take to charge my Goal Zero Yeti from a Boulder Solar Panel?

A: That depends on a few factors – how big the Yeti it is, how big the Boulder it is, how 
cloudy it is, how hot it is, just to name a few. We’ve created a handy calculator that takes 
all of these factors into consideration. Also, great news, all the Yetis allow for something 
called “pass-through power”, this means you can be trickle charging your Yeti and using it 
to power your gear, all at the same time.

Q: Can I mount the Boulder Solar Panels to my roof?

A: The Boulder 100 Briefcase is not designed to be mounted permanently to a fixture; 
this briefcase fold-and-go style allows you to be more portable. For mountable panels, 
take a look at the Boulder 50 and 100 Solar Panels.

FREQUENTLY ASKED QUESTIONS