Xtorm Go2 10000 mAh 15W Solar Powerbank - Black

I have the same one. Overall, I am satisfied. There was a time when the charge indicator broke, but after fully discharging the power bank, it works as it should. The capacity seems honest, at least based on my experience. Charging from the solar panel is rather slow, but I didn't really expect anything amazing in that regard. The gadget is always with me and I generally recommend it.

Overall, the product is fine, although a few things disappointed me. My other power bank, with twice the capacity, has similar dimensions and weight, so this one discharges faster. The solar panel is an interesting solution, but it needs to be directly in the sun to work. Based on my tests, it's not convenient to charge it on a backpack because it easily loses access to sunlight. Full solar charging requires several days, so the panel is rather optional, and it increases the size and weight of the device.

I always keep it in the car. On sunny (or at least not cloudy) days, I place it so that it gets a bit of free sun charging. The flashlight comes in handy, though I rarely use it. I treat solar charging more as a supplement, just in case—after all, you’re not going to use a phone or radio nonstop. In my opinion, it's worth buying.

This power bank is really a great choice—it often saves my phone when I’m not at home. Unfortunately, I don't recommend solar charging. If you want to use this option efficiently, it's better to buy an additional solar mat, which I plan to do soon.

I appreciate the lightweight design of this power bank. It's nice that the set includes a cable and a carabiner, and one entire side serves as a flashlight, which you turn on by pressing the power button twice. The manufacturer says charging from the mains takes 4 hours, and the capacity is enough for two full phone charges. Unfortunately, solar charging performs poorly—according to the instructions, it would take as much as 1000 hours to fully charge it by sunlight.

I hesitated a bit before buying, but this power bank turned out to be fantastic—it worked well during a mountain trip and charged itself in the sun. It's a solid device, good quality, and meets my expectations. I recommend it, I'm satisfied.

The power bank allows you to charge a smartphone with about a 4000mAh battery twice. Unfortunately, the LED indicator is misleading—after leaving it in the sun for a few days, it shows a full charge, but when you connect a device, it turns out that there was only enough charge for a few percent. That's why the indicator is only useful when charging from a wall charger, not for checking the current energy level.