The Boulder 200 Briefcase is relatively efficient. This panel is a great option for keeping your power station charged.
In our side-by-side testing, we connected every panel simultaneously to identical Jackery power stations. We left them charging for two hours, then averaged the results for each hour.
In one hour, the Boulder 200 Briefcase generated 166 watts of power. That is 83% of the advertised 200 watts this panel is rated at. This is above average, and efficient enough to keep most tech powered all day.
The Boulder 200 Briefcase is also very durable and sturdy in high winds. During testing, we often struggled to keep other panels from blowing over. But this model, with its burly kickstand legs and heavy weight, never budged even when the wind blew hard.
The Boulder 200 Briefcase is not very portable. This is a difficult panel to carry far.
This is essentially two 100-watt fixed panels with a hinge in the middle for portability. And while it does have a handle and carrying case, it weighs a whopping 43.3 pounds.
This is one of the heaviest 200-watt panels on the market. Also, getting the folded panels into the carrying case is very difficult with one person. This panel is large and heavy, which makes it difficult to do anything with it.
The Boulder 200 Briefcase is one of the burliest 200-watt panels we tested. It's not exactly portable in the same way a thin, flexible folding panel is. But it is portable enough to throw in the back of your truck and carry to a base camp or campsite. It's one of the sturdiest panels in strong winds, so it's great to set up and forget about. It's also quite expensive, and not as efficient as some solar panels, though. But if you want something durable for long-term camping, this is worth considering.
| Awards | |
|---|---|
| Price | $600 List Check Amazon (on sale!) |
Overall Score  |
|
| Star Rating | |
| Bottom Line | This is a bomb-proof panel, but it's pretty expensive and isn't as efficient as we'd hoped |
| Pros | Very sturdy design, has metal protection for each corner, overall build quality is dialed, easy to set up despite its weight |
| Cons | Very heavy, can't adjust the angle, needs an adapter to use with a non-Goal Zero power station, expensive |
| Rating Categories | Goal Zero Boulder 20... |
| Power Efficiency (60%) | |
| Portability (20%) | |
| Ease of Setup (20%) | |
| Specifications | Goal Zero Boulder 20... |
| Measured Watts | 166 watts |
| Claimed Watts | 200 watts |
| Measured Efficiency | 83% |
| Cost Per Watt | $2.98 |
| Measured Weight | 43.3 lbs |
| Connecter Types | High Power Port (HPP) |
| Size Folded | 40.0"L x 26.8"W x 3.5"H |
| Size Opened | 40.0"L x 53.5"W x 1.8"H |
| Able to Daisy Chain | Yes |
| Panel Type | Monocrystalline silicon |
| Power Outlets | N/A |
| Warranty | 2 years |
| Time to Assemble | 56 sec |
| IP Rating | IP65 |
