Nur ein Link auf eine interessante Vorstellung (mit Lego Bausteinen ) sowie Nachbauanleitung:
How to Recycle Android Phones for BOINC or Folding Rig Without Using Batteries, erstmals veröffentlicht 21.07.2017
- "(...) The idea is to have a regulated power supply with enough Amps to feed as many octo-core android you can get your hands on (...)
For ideal results, all batteries used in the smartphones should have a nearly identical voltage which should be around the 3.8V. For almost an year I’ve been using 2 octo core Landvo smartphones with USB 5V by using the “salvaged” battery circuit. For the other Allview androids this method is not working, although at 5V I was getting messages of … over current, since I did not “salvaged” the battery circuit.
The most important/difficult piece of the hadware is the USB hub. A friend of mine had to 3D print it and solder all the circuitry. Basically it feeds the desired non-standard voltage (in my case 3.8V) but it has the option to “fast charge” at 5V (which I did not test, since if you need 5V there are a bunch of options to buy from) (...) "
Autor(in) cristipurdel berücksichtigt viele Aspekte, von der Stromversorgung, Takt, Throtteln bis zum potentiellen crypto hacking.
P.S. Direktverlinkung mit Originalgröße der Bilder, falls bei euch zu groß mach ich sie kleiner.