I've been driving with my DIY uninterruptible power supply for my Xiaomi YI for quite some time now. Even though the solution seemed so obvious and easy for me, I found it's a rather big problem for dashcam owners (people go crazy with 12V batteries, ridiculously expensive BlackVue power packs, etc.)
I've put a nice write-up in here http://blog.nagimov.com/uninterruptible-5v-usb-power-supply/
It's based on 5V power bank (the same people use for charging their phones on the go) and couple of 5V relays. Cost of all the components (excluding the power bank) is around $20
Here's a picture with my layout:
I've put a nice write-up in here http://blog.nagimov.com/uninterruptible-5v-usb-power-supply/
It's based on 5V power bank (the same people use for charging their phones on the go) and couple of 5V relays. Cost of all the components (excluding the power bank) is around $20
Here's a picture with my layout:
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