Already during testing Black Shark 4 smartphone we tried the active cooler FanCooler 2.0 from this brand. It contained a pair of handles, thanks to which it was attached to a smartphone. This time we have a novelty in the editorial office in the form of a magnetic external cooler Black Shark Magnetic Cooler.
Where to buy Black Shark Magnetic Cooler?
You can buy a magnetic external cooler from the Black Shark brand from an official Black Shark dealer on the well-known international Aliexpress marketplace. However, it is currently only available in Chinese stock, so delivery will be slightly longer.
With AliExpress Standard Shipping, you don't have to worry about additional fees, because it will be delivered to you by courier and not by Slovak Post. AliExpress vendors have begun to circumvent customs duties.
Black Shark magnetic cooler for smartphone
Shipping via Aliexpress Standard Shipping
Aliexpress Standard Shipping or AliExpress Saver Shipping is available for this product. It is the most reliable way of delivery from Chinese warehouses without customs fees for products up to €150. Delivery can take 15 days to 1 month.
Shipping via Aliexpress Standard Shipping
Aliexpress Standard Shipping or AliExpress Saver Shipping is available for this product. It is the most reliable way of delivery from Chinese warehouses without customs fees for products up to €150. Delivery can take 15 days to 1 month.
Contents of the package
We will start this brief review traditionally, with the contents of the package. The box in which the Black Shark Magnetic Cooler is delivered has compact dimensions of only 9.5 x 13.3 x 3.4 cm. It is a white, extremely strong box made of thicker cardboard and soft reinforcement. The cooler itself is thus perfectly protected in the package.
Inside, the heatsink is housed in a foam reinforcement and a self-adhesive metal magnet underneath. There are 2 variants available for sale - without magnet and with magnet. If you have a smartphone that has a metal construction, including the back cover, you do not need a self-adhesive magnet and you simply place the cooler on the back cover, where it attaches with the help of magnets.
The package is complemented by a foil, which is only supplied in a package with a self-adhesive magnet. It serves as a layer between the smartphone and the self-adhesive magnet.
The Black Shark Magnetic Cooler weighs only 73 g and has a diameter of 6 cm. Its cover is plastic, but overall it has a very good impression. Openings and grilles on the top or around its perimeter complete the look very attractive. In terms of design, it really worked.
Mounting with magnets
Unlike the aforementioned FanCooler 2.0, the Black Shark Magnetic Cooler contains 15 NdFeB magnets, which are located around the perimeter of the external cooler itself. These are strong enough to keep the cooler firmly on the back cover of the smartphone.
The cooler consists of 112 high-quality fins, a fan with a speed of 7200 rpm and a thermally conductive layer on the underside. According to the manufacturer, this set should be able to reduce the temperature of the smartphone by up to 23 ° C. Of course, these are only theoretical values calculated on the basis of laboratory tests of the Black Shark company.
Black Shark Magnetic Cooler: First use
We tested the Black Shark Magnetic Cooler on the older Samsung Galaxy S9 + smartphone, which heats up quite significantly while playing games. When placed on its back cover, the cooler attaches, but not enough for further manipulation or playing games.
We therefore reached for the self-adhesive magnet, which we wrote about in the introduction. Before gluing it, we cleaned the surface of the back cover and glued a thin foil on it. It is a standard transparent film, which is also used to protect the display. We then glued the self-adhesive magnet exactly to the foil.
Then all you have to do is place the heatsink on the glued magnet. It is a pity that the manufacturer puts only one foil in the package without a replacement self-adhesive tape. The self-adhesive magnet is only disposable in this way, and after detaching it, you can no longer stick it on another smartphone. He would have to replace the self-adhesive layer on the magnet and also buy a second foil. The heatsink is thus more suitable for smartphones where you do not need to glue this magnet.
Power supply and our cooling test
The heat sink does not have its own battery, so an external power supply is required. In the package you will find a 1.5 m long USB-C cable, which you can use for this purpose. We powered the cooler from a power bank from Xiaomi, which has a capacity of 20 mAh, but does not have a USB-C output port, so we used our own cable.
The lower heat-conducting layer of the heat sink is really ice-cold after a short operation. The cold is immediately transferred to the self-adhesive magnet and smartphone, and emotionally the area around the magnet is really cooler, so the cooler looks efficient. We also tested it while playing Rebel Racing. After a few minutes of playing, we measured the temperature of 39 ° C on the back cover of the smartphone using a non-contact thermometer.
Then we connected a Black Shark Magnetic Cooler and after ten minutes of playing our temperature dropped to a great 27 ° C. The smartphone was noticeably cooler and held in his hands much more pleasantly. The cooler thus passed the test and was able to effectively reduce the temperature of the smartphone.
Pitfalls with a glued magnet for Black Shark Magnetic Cooler
As we mentioned earlier, a smartphone with a magnetic back is ideal for this cooler. The magnet on the back cover of the smartphone causes several problems. The first is the worse use of the case for the smartphone, as the magnet is slightly more intrusive. However, a bigger problem is the inability to use NFC for in-store payments if you stick a magnet directly over the NFC chip.
Also, you cannot use wireless charging, which is hindered by the magnet. As you can see, the cooler is efficient, but it causes some limitations when using a smartphone.
Black Shark Magnetic Cooler: Final evaluation
Black Shark Magnetic Cooler is an interesting gadget that will be appreciated especially by mobile game players. It can effectively cool the smartphone, thus improving the gaming experience and preventing overheating.
However, it is more ideal for smartphones with a magnetic back, where you do not have to glue the magnet to the smartphone. The glued magnet limits the use of NFC technology as well as wireless charging. It is an interesting product that is sure to find its target group.
Black Shark magnetic cooler for smartphone
Shipping via Aliexpress Standard Shipping
Aliexpress Standard Shipping or AliExpress Saver Shipping is available for this product. It is the most reliable way of delivery from Chinese warehouses without customs fees for products up to €150. Delivery can take 15 days to 1 month.
Shipping via Aliexpress Standard Shipping
Aliexpress Standard Shipping or AliExpress Saver Shipping is available for this product. It is the most reliable way of delivery from Chinese warehouses without customs fees for products up to €150. Delivery can take 15 days to 1 month.
Wouldn't it be enough to stick it on the case of the package, for example on an older one, and just change the cover with the cooler while playing?