Waterproof and highly protected backup power supply. The only downside is the smaller capacity. However, I recommend it for trips where you can sometimes charge.
Works well even in severe frost. The display shows the charge status reliably. The wires are a bit flimsy but not hopelessly weak though. Now that I have owned the device for a long time, it has been found that contact interference occurs with cables relatively easily, and after that the device is quite useless.
Good battery bank for demanding use, but capacity is quite a bit relative to weight. Fully charge your smartphone battery a couple of times.
Durable, but there is some weight.
At first, small challenges to get the job done. Since then, worked flawlessly. The plugs at the ends of the pipes come off when the fasteners break ...
Product as promised
Well made, sturdy construction. Download capacity is exactly what the spec says. A little lighter if it had been done, the grade would be 5/5.