See our current reviews of portable solar panels.
The Powertraveller Solarmonkey Adventurer might be better called the Powertraveller Tortoise Adventurer. It is not fast, but it is reliable, and in some ways competitive. In the modern world of solar chargers, however, the Tortoise just doesn't have as much time to catch the Hare and win. The Solarmonkey is a slow charger, but it is not glitchy and works exactly as advertised.
The Adventurer has been recently updated, and the company addressed some of the most important flaws; however, we don't think the upgrades would boost the panel's competitive standing tremendously in this review, and overall, the score was relatively low. This solar charger is an interesting all-arounder, but it just didn't provide a competitive mix of features. To be stronger in this review, we would have needed to see significantly more battery strength and capacity, smaller overall size, lighter weight, or stronger amperage output, without compromising the other features. The upgrade gave it more amperage from the battery and a little more capacity, but the solar panel is the same size, so we are skeptical that the charging ability will be dramatically improved.