Review on BERKUT Specialist JSL-25000 black by Stanislaw Wawrzynowi ᠌

1. Larger size and more weight compared to a power bank of approximately the same capacity of 20,000 mAh from Samsung. Samsung in an aluminum case - 396 grams, against 828 grams of Berkuta in a plastic case. 2. High internal self-discharge of the device, even at an ambient temperature of 22C. Most likely self-discharge at low temperatures will be higher. 3. Restrictions on output power and voltage for charging devices via USB and lack of QC and PD 2 and 3 charging standards. Charging a laptop (Lenovo), and now they use a USB-C connector with Berkut, will not work. It was also not possible to charge the laptop through a regular USB, although the maximum voltage output to USB is 12V and 1.5A (this is 18W), and on USB-C (5V and 3A, this is 15W), which should be enough for a "long" laptop charging , and for a "fast" charging of a laptop, 19-20V and 3.25A (60-65W) will be required, but it can be charged with USB voltage at 12V and 1.5A (18W) or 9V and 2A (18W) or at 5V and 3, 6A (but these are the same 18W). As a result, you either have to be smart using a USB trigger, which is another +150 with aliexpress, or carry another power bank with you to charge devices with a QC charging standard and PD 2 and 3.