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1 - step-down converter Ali can buy here ali.pub/cer96
2 - step-up converter Ali can buy here ali.pub/1zkge
3 - adapter for a laptop or your device can be purchased here ali.pub/w2tpl, or use your wire carefully sealed-off from the power supply.
4 - mini voltmeter ali.pub/08b7m
In this topic we look at how you can connect the device to work from the outside and the conventional battery in the laptop example, but as is clear from the subject, in principle, you can connect anything to the main power converter was enough to power the device.
Diagrams and follow-up article, please visit the following link: peling.ru/noutbuk-ili-planshet...