What is included in the kit?

The Boulder 100 Briefcase with a pre-installed 10A charge controller, an 8mm connector, a spade-to-SAE cable, SAE-to-alligator clips and an SAE-to-ring-terminal option, plus a canvas bag.

Can it charge a Goal Zero Yeti directly?

Yes. Disconnect the panel's female 8mm cable from the controller's male 8mm cable and plug it into the Yeti's 8mm input.

Do I need a separate charge controller for a 12V battery?

No. The 10A controller is built in, so you connect the panel to the battery through the supplied cables.

How much power does it produce?

Two 50-watt panels give 100 watts total at 14–21.5V, and real output depends on sun angle, shade and temperature.

The panels are built with tempered glass and an aluminum frame for outdoor use, but the controller and connectors should be kept dry.

Can I carry it hiking?

It folds into a briefcase with a bag, but glass and aluminum make it better suited to car camping and basecamp than backpacking.

Where is the Boulder 100 Briefcase Solar Charging Kit cheapest?

At TacomaBeast, for $149.95, 63% under what the other stores charge, as of our latest check.

Where can I buy the Boulder 100 Briefcase Solar Charging Kit?

14 stores we checked sell it, including TacomaBeast, PADI-Dja, Rack Attack, eBay, Sportsman's Warehouse.

Boulder 100 Briefcase Solar Charging Kit

Best price now

$149.95at TacomaBeastChecked 2 h ago

63% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when.

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What reviewers say

Owners of the Boulder 100 line generally report solid build and dependable output in good sun, and like that the kit arrives ready to connect. Complaints center on weight and bulk and on output dropping in shade or haze.

What people mention

BuildPraisedOwners describe the aluminum frame and tempered glass as tough and travel-ready.
SetupPraisedThe pre-installed controller and included cables are called easy to connect.
WeightCriticisedOwners say it is heavy and awkward for long carries.
ShadeCriticisedOutput drops noticeably when panels are partly shaded.
ChargingPraisedUsers report reliable charging of 12V batteries and Yeti power stations in full sun.

About the Boulder 100 Briefcase Solar Charging Kit

The Boulder 100 Briefcase Solar Charging Kit is a portable, foldable solar charging kit. It has two 50-watt panels, 100 watts in total, joined by a hinge. The panels use monocrystalline cells and are built with tempered glass and an aluminum frame with added corner protection.

The kit includes a pre-installed 10A PWM charge controller to charge 12V batteries. It comes with an integrated 8mm connector, a Spade to SAE cable, and SAE to Alligator Clips and SAE to Ring Terminal options, so no additional cables or accessories are required. A protective canvas bag is included for carrying, and an integrated kickstand supports setup.

To charge a Goal Zero Yeti Power Station, disconnect the female 8mm connector cable on the solar panel from the male 8mm connector cable on the charge controller. Then plug it into the 8mm input port on the Yeti. The panel does not hold a charge. It produces power only while exposed to sunlight, so angle it toward the sun and adjust it as the sun moves.

Rated power

100 W (two 50 W panels, 14-21.5V)

Cell type

Monocrystalline

Construction

Tempered glass, aluminum frame with corner protection

Weight

28.25 lbs (12.8 kg)

Dimensions folded

26.75 x 21.75 x 3.75 in (70 x 55.2 x 8.9 cm)

Dimensions unfolded

26.75 x 43.5 x 1.75 in (70 x 110.4 x 4.4 cm)