Hi everybody! Im sick and tired of all these small and ugly powerbanks that doesn´t have capacity enough to even charge your cellphone once. So this is how you make your own that you can customize with diffrent lids with a capacity up to 16000 mAh. There is an assambley-video step-by-step on the youtubechannel.
Solderiron - https://goo.gl/SE2Kiz
Solder helpinghand - https://goo.gl/nwfH0x
Cutting Plier - https://goo.gl/HxB7kO
3D-printers - https://goo.gl/OHhp14
Bill of materials:
USB-PCBCARD - (2$) https://goo.gl/L0R7sK
Batteryholder - (2,5$) https://goo.gl/Z8Y3ob
Batteries 4000 mAh - (13$) https://goo.gl/aR71OZ
Step 1: Download and 3D-print the Parts.
You will need a bottom, a lid and a powerbutton, you can find everything at thingiverse:
I printed it at 20% honeycomb-infill PLA.
Step 2: Assamble
First insert your powerbutton.
Step 3: Solder
Solder your batteryholder to the USB-PCB, red to bta+ and black to bta-. MAKE SURE TO WIRE IT IN PARALELL! like in the picture, else you will burn the PCB due to high voltage!
Step 4: Assamble
Assamble the PCB and batteryholder,insert batteries, try if it work before you glue everything in place!
Step 5: Tight Screws
Tight the screws and enjoy. The outputs and inputs schematics is:
[ 1amp ] [ Input ] [ 2.1 amp]
You may also use it as a LED-flashlight two fast clicks on the powerbutton and the LED lights up.
There is links for all the part on the youtube-page and on the thingiverse-page-
Please check out and subscribe to my youtube-channel: