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The great price of this charger is one factor that really sets it apart from the competition in terms of value. The efficiency of a solar panel is quantified in percentage. The higher a solar panel’s percentage, the higher its ability to produce energy from sunlight. To start with, the overall efficiency ranges between 21.5 to 23.5% which is really impressive for a 28w solar charger. Another great thing about X-DRAGON’s solar charger is that it features its SolarIQ technology. Depending on whether it has direct sunlight or not, it’ll adjust the current and voltage to achieve the maximum power output. Frankly, this is one area where the BigBlue solar charger really shines with its auto-restart function.
Whether you take it for an adventure trip through rain and fog or use it at home, this versatile solar charger will perform smoothly at all times.When you consider the larger picture – i.e. efficiency and performance, the slightly heavier weight hardly matters. It’s a trade-off we totally accept for this solar charger. This kind of performance was unexpected based on what I’d read from other hikers. Many said they didn’t bother carrying a solar panel because it wouldn’t keep even a single person’s phone charged, let alone two. Technology is constantly improving though, and perhaps they haven’t tried the BigBlue. Durability With this more nuanced (and accurate) information taken into account, I went about testing the unit under various lighting conditions to see if it would perform as detailed in the product description. In my testing across various sky conditions, the unit performed right on par, maxing out at just under 17W in direct sunlight on a perfectly sunny day (when using the two 2.4A ports). Even in less-than-ideal lighting situations, such as a cloudy day with snow on the ground, I was able to achieve 10W output (when using both 2.4A ports). In addition to that, the safe charging features prevent any overloading and keep your gadgets safe. The charging speed of the BigBlue solar charger is excellent under the full sun but when it gets cloudy, the charging speed does drop a tad.
Do note that max current is not only determined by how much power the panel outputs, but is also dependent on the battery status of the device being charged and also the charging protocol supported by both devices. You would only see max charge current during the constant current phase, once the device is partially charged and switched over to constant voltage the current is restricted and progressively tapers as charge status approaches 100%. Exclusive Smart IC Technology: With the built-in intelligence chip, our solar phone charger detects your device then deliver its fastest possible charging speed(single maximum usb output up to 5V/2.4A, dual maximum USB up to 4A). Dual-port applys to all the 5V Android devices and apple devices. Note: This solar charger is not compatible with the iPad Pro. Above treeline on a sunny day, we could charge a 10,000mAh power bank completely within a few hours. Granted, the Colorado Trail does spend a lot of time above treeline, but afternoons were often cloudy.We found this a very effective feature while walking over a trail with intermittent light and shade. With the BigBlue solar charger, we never had to worry about it becoming disconnected.
Most solar chargers will get their chance to shine (no pun intended) in the outdoors. It’s necessary to have them be as durable as possible because they perform such an important function.On the Big Blue Solar panel. I wasn’t very satisfied with it. After sitting in the sun for Four hours,I made a small charge on my iPhone. The Mac book next to nothing. This particular solar panel was not so good either on doing multiple charges at once.I had a friend use it with a cheap flip phone in which had a better bit of charge. I phone, Mac books not so good. Before my experience to use I should have researched the product to what it really could do. All companies claim they have great products until the user sets out into a venture and we expect that company experience to be really accurate. Put it to the test yourself a bit Even in less-than-ideal lighting situations, such as a cloudy day with snow on the ground, I was able to achieve 10W output (when using both 2.4A ports). This solar power tech isn’t yet perfect as heavy shade can disrupt the charging and it won’t readjust when it clears, but keeping an eye on your cell phone or device may quell that issue. We found this to be frustrating when we tested outdoors on a partly cloudy day. On our sunny test day when the sun’s power was at its peak, it performed perfectly. The BigBlue solar charger comes loaded with a range of advanced technical features. This enables it to deliver superior efficiency and fast charging speed. This solar charger is best used if you’re a solo traveler. It only has one USB port, two solar panels, and doesn’t have that much power output for charging devices.
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