We hacked a smartphone dry bag to make it a solar dry bag. In this example, we use a 6 Watt Kit, 4 foot extension cable and dry bag (try searching for  “dry audio case”) to make a waterproof solar charger.

waterproof-kit

Here’s what the case looks like pre-surgery.

sack-audio

We cut the extension cable in two, stripped the ends and threaded it through the audio port. A bit of soap on the cable makes this task easier.

stripped

Here’s what the cable looks like passing through the dry bag.

 

cable-entry

 

Finally, we heat shrink tubing on the cable, soldered the wires back together and heated the tubing. Ready for some wet adventures!

shrink-wrapped

 

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