Find contentSorry I did not reply. The battery should be fully charged, but I don't know for sure since it won't turn on all the way. Yesterday I was able to see the SONY ERICSSON logo on screen, but it never went to the home page and eventually it turned itself off but I didn't see how long that took. I did yard work for over an hour while I let it sit there.
I will take a video and I will also try to use a power metering device.
Here's the video.
The start shows two batteries, both near full charge. The middle shows that when inserted, they do not turn on. The end shows that both wall chargers get 5 volts of power.
There's a c905a and a w580i in the video. Neither device starts up correctly. I am primarily focused on fixing the w580i
I've attached a photo that shows that occasionally, The SONY ERICSSON logo shows up on the 580i. 
PXL_20260529_023239975.jpg 103.74K
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