I've gone back and forth on these forums looking for an answer, finding things as unlikely as putting the battery in the freezer (however effective it might be in some cases).
My C1K will work fine as long as it's plugged into the wall. Charging light comes on, and eventually goes off, but as soon as I disconnect it I get the black screen of death. Both the original battery and the battery that I ironically just received the day after my Z bricked have enough power in them to help me into the service menus, but won't power the device, even when fully charged.
I can't seem to find anything anywhere that gives detailed instructions on how fix this. One of the grey market vendors was kind enough to try to help, but essentially has thrown up his hands and asked me to let him know what Japan says the problem is. My problem is I can't send it to Japan because I bought it used and so even though it is only a couple of months old I'm stuck basically with a system that must be used while connected to a wall socket.
My EA-72 is putting out 5.14vdc according to my Beckman Multi-meter (very accurate professional meter).
Now here's the strange thing. The brand new battery I bought and received yesterday measured out at 3.4v out of the box. I just took it out of the system after charging it and then trying to boot the system on it unsuccessfully. Immediately after it failed I measured it on the same Beckman meter and it measures out at 4.17v. So it is charging, but the system at this point just won't seem run on the ~4.2vdc that the battery puts out, or just won't run on the battery itself. So is it a charging problem or actually something else?
Sure was nice while it lasted,
gdog
