I purchased this Arduino based battery spot welder PCB set and then opted for the fully built unit. With some fairly inexpensive components and some soldering and assembly skills, you can make this into a battery spot welder for low $$$. I paid $6+1.70 for shipping. It's still in the original packaging and I'll let it go for $7.00 shipped to the continental USA.
Where I bought it from:
https://www.tindie.com/products/KaeptnB ... r-pcb-set/
http://blog.tindie.com/2017/01/arduino- ... uct_011917
KaeptnBalu's github page with all of the parts list and assembly drawings.
http://www.instructables.com/id/DIY-Ard ... ot-Welder/
Another website featuring this board:
When completely assembled, the unit will look like this.
Last edited by ambroseliao
on Feb 13, 2017 10:57 am, edited 2 times in total.
is the best!
TidalForce M-750X, Tidalforce S-750 with Crystalyte HS3540, 1x TF iO-X Cruiser. E+ 1000W hybrid bike. ebikes.ca DrainBrain & Cycle Analyst meters. GoPro HD Hero2 camera. Bosch Fat Packs, 37V 10Ah LiPO pack. Turnigy Multistar batteries
My blog: http://ebikerider.blogspot.com
Remember LiFEPo4 HVC is 3.65V and LVC is 2.7V