I don't know why but all the Pictures are gone in the real post therefore I post it again. If you already know this post just ignore it and sorry for the repost but without Pictures the post is really

I don't know why but all the Pictures are gone in the real post therefore I post it again. If you already know this post just ignore it and sorry for the repost but without Pictures the post is really

A new project I'm working on right now is a powerbank that could power a 12v dc to 230v ac converter. The result so far is a 3S 20P 18650 (Lithium-ion) battery pack which has around 517 watt hours. To

Hello! I made some upgrades to my 3D printer the Tevo Tarantula. Out of the box the printer is okay but not great. Therfore I thought I will show you my upgrades so far and the following ones that will

I want to show you my first powerbank I have build, explain how it works and a little bit how I have build it. It uses eigth 18650 lithium-Ion batteries each messured and tested around 2600mAh. I tested

Hello  Steemians. My name is Christian and I am living in Germany. At the moment I'm doing my A-Level ("Abitur" in Germany). In my free time I like to build stuff with electronics like Powerbanks,