If you have a drone, sooner or later you’re going to want to charge your drone battery off-grid.
The problem is that drones use big batteries, so to charge a big battery you need an even bigger battery – a simple solar panel USB charger might be good enough to charge your phone, but it isn’t going to provide enough current to charge a drone battery.
There are a few commercial options available that can charge your drone batteries without an AC outlet, but I decided to build my own…(spoiler – don’t bother!)
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