dmxmaster

Thanks. I've got them from a local recycling company.

Thank you! I tried my best to make the battery pack as save as I could but there can always go something wrong.

Thanks!

Thanks for your questions. The TP4056 is charging the batteries at 1A. Without any losses due to heat it would take(21Ah/1A=21h) 21 hours. But nothing is ideal and also at around 4.2V the Tp4056 is going

Really nice post and idea. I really enjoyed reading it. I think I will build something similar in the future. Keep the good work up!

Gute Idee. Mach so weiter!

Thank you for your help. I will try to add images in the next posts.