eReviews.dk:

»My experience was that the percentages on the power bank I had connected quickly incremented, even though the panel was not optimally directed towards the sun. The same happened when I tested the DC connector with Sandberg's Power Station AC300. The pocket on the back of the panel is perfect for storing your power bank while charging. Sandberg Solar Charger 40W LightWeight is an update that actually fixes the few complaints I had about the predecessor, it is about 500 grams lighter, and can deliver a reasonable effect on the USB connectors, and at a slightly lower price!«

DatorMagazin:

»The part that I am most impressed with is the efficiency of the panels. All panels, more or less, perform well under direct sunlight, but the Sandberg Solar Charger 40W LightWeight is also incredibly efficient under cloudy conditions. We tested connecting our Snapdragon X Elite laptop while working outdoors on a cloudy day, and despite using the computer at full load while it was charging, the battery remained at almost full capacity throughout the day.«