If you are out in the mountains, remote area or just forgot your charger. Having a flat can be a serious inconvenience, and in those remote areas a serious danger. Obviously you can carry spare packs ...

CR's experts pick the best portable solar panels and battery chargers to power devices like phones and laptops, plus back-up batteries and power stations.

Solar-powered gadgets have moved beyond novelty status and into everyday practicality by 2026. Improvements in panel efficiency, battery management, and compact design now allow these devices to work ...