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If there's one universal law of mobile tech it is that you're always running short on power. Sure, you can pack portable battery chargers but they are also destined to run out in the end. There's just ...

Despite its small size — measuring about a foot tall and not even an inch thick when it’s folded up — the X-Dragon 20W was a reliable solar charger in our testing, not lagging far behind a much bigger ...

Bluetti's new Charger 2 will let you charge your batteries from your alternator and the solar panel on your roof.

This is the most simple and affordable solar battery charger that the hobbyist can make. It has a few drawbacks over other similar controls, but offers numerous advantages. It is intended for charging ...

If there's one universal law of mobile tech it is that you're always running short on power. Sure, you can pack portable battery chargers but they are also destined to run out in the end. There's just ...