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For those wondering what the end-goal was for my DIY battery pack, wonder no longer!

I've put it together with various other parts—mostly used or reclaimed—to create a little portable solar battery system.

In fact, I've been using it to keep all my personal electronics charged—phone, laptop, headphones, e-reader, watch—and logging all the power generation and usage for analysis.

My goal is, over time, to expand this with even more recycled batteries but it's already making a small difference in my daily electricity use. Since the overall cost has been so low it should actually pay for itself relatively quickly while also being easily serviceable.

If I get some time, I'm hoping on documenting the build so that others can make their own if they want to.

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