To use with https://www.printables.com/es/model/919051-einhell-battery-adapter-with-screw-m3-holes

You need a LM2596 DC reductor to get 5V to power a Raspberry Pi (or whatever you want).

You need to split 20V from battery to power LM2596 and a female jack ready to power OpenAstroTracker (or whatever you want).

You need:

· 4 metallic inserts for M3 screws (M3 x OD4.6 x H6.0).

· 4 M3x12 screws.

· LM2596

· Female DC connector (optional)

· Female USB connector

· Some DC cable.

· Cable connector