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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). With easy to setup and even faster folding, this panel will have your devices charging at 40 watts in no time As explained by BigBlue in the fine print of the product description, the unit features four seven-watt panels, which makes for a total of 28W. However, the actual power output is dramatically lower, due to the conversion process from solar energy to actual deliverable energy over USB. BigBlue clarifies that ‘under ideal conditions’ the solar charger can output a maximum of 17W (5V*3.4A). The best solar chargers need to be reliable, long-lasting, and charge your devices when you need them. It’s a simple concept but really describes what a quality solar charger should achieve. In addition, there’s a short circuit, overcurrent, and fail-safe protection. Your gadgets are totally safe using this 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 All the options on our list are made with PET polymer or PVC canvas, great materials that last long against the elements. They’re all water-resistant, so you don’t have to mind every splash. Most are not waterproof, so you still have to be careful to put them under cover in inclement weather.
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. To top it off, it comes with a built-in ammeter which allows you to measure the current output at any moment. The large surface area on these four panels takes up enough space to capture sunlight, even when that sunlight isn't as powerful. This panel seems to do better when sunlight gets interrupted than many others, too. We repeatedly noticed this panel kept a more consistent charge when a cloud passed over the sun. The great price of this charger is one factor that really sets it apart from the competition in terms of value.
Battery chargers and even portable generators are great to have on-hand, but what do you do when the battery bank runs out of power and the portable generator runs dry on fuel when you don’t have an outlet or gas station nearby? You use a portable solar charger, like the BigBlue 28W Solar Charger. Sure, this notebook-sized charger won’t power a fridge or toaster, but for times when you need a little extra juice in your phone in emergency situations or while out camping, folding solar panel chargers are a great solution. This change of mind return policy is in addition to, and does not affect your rights under the Australian Consumer Law including any rights you may have in respect of faulty items. To return faulty items see our Returning Faulty Items policy. 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.It’s my personal go-to choice – I’m a keen photographer so I keep this stashed in my trunk to re-charge my camera batteries on the go. The amount of wattage depends on amps and also volts. Volts are the amount of force of electricity, and multiplying amps and volts will equal the wattage. A higher number means higher power output. Efficiency According to the product listing, the BigBlue Solar Charger is waterproof, however, no specific waterproof rating is given, which made testing this detail a little challenging. Determined to figure out just how far I could push it to the limits though, I started with small spritzes of water from a spray bottle and worked my way up to completely submerging the solar panel section into a bathtub full of water. To begin with, it offers 28W of power with excellent solar efficiency. The high-quality solar panels are designed to deliver efficient performance for years. 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
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