This 300W power bank is foldable and comes with solar and built-in charger

A new power bank might be interesting for travelers or for anyone who wants to use a power bank without an additional charger. The Solly comes with an integrated charger and a plug. The model is offered in versions with a US, EU and UK plug. This plug simply folds down, which means it should not get in the way during transport. The 3.1 x 2 x 1.4-inch gadget comes with a USB-C cable, which also functions as a lanyard and should make it easier to carry. Up to 100 watts can be transmitted via the USB-C cable. The weight is listed as 14.1 oz. In an emergency, the built-in solar panel is also supposed to provide a certain amount of charge.

According to the manufacturer, the power bank has a capacity of 74 Wh, which should be enough to fully charge typical smartphones more than once. It supports output of up to 300 watts. As usual, this figure refers to the combined output across all ports. The two USB-C ports are said to deliver up to 140 watts each, which should be enough to charge laptops. USB-A can still deliver 20 watts. The Solly can be charged not only with the integrated plug but also via USB-C at up to 140 watts.

This is a solid-state power bank, so it should not go into thermal runaway even under severe physical stress. As part of the crowdfunding campaign, which carries a considerable financial risk for backers, prices start at $89, with shipping scheduled for August. Users should carefully check the shipping terms. In fact, this campaign seems very ambitious to us, so the crowdfunding risk might be relatively high in this specific case.