iPhone 11 12 13 Spot Welding Battery = 0 Volts
I just got in a spot welder to replace a battery on my first Iphone 11 this week.
After spot welding the output voltage was 0.
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Now I have 2 broken Iphone 12's
Same issue happened, I went to spot weld the Flex onto battery and then 0 Volts on the output...
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Thanks
Kevin
Is this a good question?
5 Comments
there is a solder out now that you can use for soldering the bms, maybe you should try that to see if you have better results
by daniel
@tech_ni Thanks, with a quick search i dont see bms solder. I do have Kester solder though which is premium solder.
Perhaps its just not making a connection. I guess i should try to sand or scuff the surface before attaching. I notice the tabs are laminated and can prevent conductivity..
by Kevin W
@willie604 https://www.aliexpress.com/item/10050040...
by daniel
@tech_ni
@4min. 0 volts is normal... i will have to test this.
https://youtu.be/rdIjopmCmRw
by Kevin W
@willie604 looks like the battery just needs activated
by daniel