Within 10-15 minutes, the unit bottomed out from 85% to 0%. ![]() When this happened the second time, I decided to discharge the unit to 0% in order to test the whether the faulty metering was too low or too high - did it read lower than it should until it hit 100% or did it read 100% when it should read lower? To test this, I plugged a television into the 300 AC output, and ran it down from 100%. This has yielded anywhere from 10-25 watts (according to the unit's meter, more on that later) at around 18-22volts through an average charging session (well below max output). I hang it from a strong curtain rod in a large window, or place it on a bed that gets evening sun. Please keep in mind - I have never used the solar panel outside or in optimal charging conditions. After just a few minutes of charging via solar, suddenly the unit jumped to 100% once more. At that time it read 8 watts out and 12 watts in. ![]() Once it got down to around 70% I wanted to test simultaneously charging and discharging the unit, so I plugged in the solar panel. We then discharged the 300 by charging multiple USB devices from it. The first time I attempted to charge it via the solar panel, the unit immediately jumped from 60% charged to 100% charged. It seems solidly constructed, and includes cooling fans which run automatically when charging to prevent overheating.Ĭons: Where this unit fails is in the metering. The LCD display is easy to read with basic charging info. The unit can charge while discharging all but the AC. 6lbs), it has charging capability for USB 2.0, 3.0, and USB-C, various DC outputs, and 120V AC. Pros: the Rockpals 300W is light (approx. As far as I can tell it works as advertised, so long as the suggested 25V peak power is compatible with your equipment. This review will not cover the 100W 02 solar panel. She assumed their compatibility based on the fact that these were sold as a package on the website and the description which recommended the 100W solar charging panel did not distinguish between the 100W 01 and 02 versions. got me the Rockpals 100W 02 "upgraded 2020" solar panel and the Rockpals 300W for Christmas. Rockpals is currently running a sale on their power stations, so I wanted to alert folks to my experience as a warning. ![]() For example: For a video comparing different gear the "TLDW" comment should contain, at a minimum, the list of gear compared, and a basic overview of how the review is conducted.
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