Power in the apocalypse

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In the near future I'm going to be doing a few more cyberpunk events so while it's probably a neon dystopia these things all share the same issues. Techno gadgets need to glow/flash/move or other things for a whole weekend in a place where access to electricity may be limited and changing batteries round all the time can be a pain.

I've recently picked up several of these USB powerbanks from Poundland (worth noting that they are £2). The teardown review was relatively positive so I thought it was worth a try. The first blinky LED project I've got running on it has currently been going for 48 hours non stop so I've made the decision to build one of these into the project rather than AA batteries (project details in due course). It's always worth designing with low power in mind and there are a whole bunch of tricks you can do to reduce the power consumption but I'm looking forward to getting these into projects.

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