The Belj B-L-512-BL is a slim 10000mAh power bank with 22.5W fast charging, sized to slip into a pocket or handbag and keep a smartphone going through a full day away from a plug or a stretch of load shedding. It has two inputs, USB-C and Micro-USB (each accepting 5V/2A, 9V/2A and 12V/1.5A for quicker recharging of the bank itself), plus a USB-C output and USB-A outputs, so you can charge more than one device at once, including phones, earbuds, smartwatches and headsets. The USB-C port supports PD fast charging up to 12V/1.5A and the USB-A side supports up to 22.5W on compatible phones. A digital LCD on the face shows the remaining charge as a percentage. The lithium-polymer cell sits in a 144 x 67 x 16 mm black housing, light enough for everyday carry. A 10000mAh bank typically delivers around two charges for a typical smartphone. Retail box, 1-year warranty.