In the last two weeks we have had the opportunity to test the Sandberg USB-C PD 20W 10000 powerbank, a product that turned out to be interesting especially from the design point of view, with an efficiency that is not 100% convincing in every scenario, but let’s go step by step and find out how it behaved starting from the basics, i.e. from the packaging and its content.
Packaging and materials
Externally, the package is quite simple, but still has some distinctive features and is not decidedly anonymous, the predominant colors only blue and black and we find the various main specifications written here and there. Inside there is a transparent plastic support and the powerbank is placed inside.
In addition to the powerbank, we also find a small, very thin manual and a USB-A to USB-C cable. What struck me most is the quality of the materials, it is not the usual plasticky powerbank, but it is made of aluminum, and is in fact very solid and pleasant to the touch. The feeling is that of having a well-built and safe product in your hands, even if the weight of 250 grams and the dimensions of 14.3 x 6.6 x 1.55 cm are felt in your pocket.
Features and performance
The Sandberg USB-C PD 20W 10000 Powerbank has 4 ports, a side button and a small display that shows the battery charge and a green symbol if fast charging is active, in fact there is recharging Quick Charge 3.0. The ports present are 2 USB-A, one USB-C and one micro USB; the first two can be used only in output, the USB-C both in input and output and finally the micro USB only in input.
On the back of the powerbank it is possible to read some information regarding the capacity, that is 10,000 mAh with energy equal to 37 Wh, in addition to the charging power possible through the various ports present, both in input and output. We have in fact:
- Micro USB input (for charging the powerbank): 5V / 2A, 9V / 2A, 12V / 1.5A
- USB-C input (always to recharge the powerbank): 12 / 1.5A, 9V / 2A, 5V / 3A (maximum 18W)
- USB-C out: 5V / 3A, 9V / 2.22A, 12V / 1.67A (maximum 20W)
- USB-A out (first and second port): 5V / 3A, 9V / 2A, 12V / 1.5A
In a nutshell, all this means that to quickly recharge our portable battery it is recommended to use a power supply capable of delivering 18W, so as to minimize the times. After carrying out various tests I can say that the Sandberg USB-C PD 20W 10000 employs about 3 and a half hours to fully recharge from 0% to 100%, but I still advise you to never let it completely discharge, rather put it in charge when it is at 20% or at most 10%, so as to better preserve the life of the device.
As for the recharging of our smartphone (or tablet, or even other devices), I carried out various tests, some use fast recharge, others with slow recharge, and again I tried to recharge the smartphone while the latter was in mode plane, or using it sporadically during charging, so as to simulate a few different scenarios that can happen in everyday life.
The first thing I noticed is that the percentage indicated on the small display is useful, but not very precise, in fact, it happened to me several times to disconnect the powerbank at a percentage equal to, for example, 39%, only to find it shortly after, charged at 35%; there is therefore a margin of error in the indication of the percentage that can sometimes lead the user astray. It does not always happen, but it is good to pay attention to it and not to rely too much on the indicated number, because it could jump from time to time.
As for the efficiency in terms of energy dispersed during charging, it is possible to charge an Android smartphone with a 4,500 / 4,600 mAh battery maximum 1 and a half times (tests carried out with Xiaomi Mi 11 and OPPO Find X3 Pro), but I have noticed that you manage to have one greater efficiency by taking advantage of slow charging, while with the rapid the powerbank tends to discharge faster (results in any case in the norm, but to which it is better to pay attention in emergency situations).
All in all I must say that it is not the best powerbank on the square, but it defends itself very well and at least in design I appreciated it a lot, while I liked the various charging surges and the poor efficiency when using the recharge a little less. 20W, but in any case it is an accessory that can always be useful and having it in the backpack or bag can help us arrive at evening with greater peace of mind.
You can buy the Sandberg 10,000 power bank on the official company website at the price of 32.99 €.