One of my BP-u30s has a problem and I'm guessing it's probably dead. I had it on the charger and when I came back to check it, it was blinking all four lights and the charger blinking orange/green over and over.
The battery continues - over a day now - to blink all four lights. I tried a few things, but nothing seems to make it stop. No indication that it might have been going bad. Any thoughts? Can't find TFM - don't know if and why I would have until now.
If you can get it to boot up the camera open the Menu and find Others, then scroll down to Battery INFO.
Here it will tell you the type of battery (size), when it was manufactured (date), and the Charge Count (how many times it has be recharged), amp hour capacity, current Voltage, and life remaining percentage of the battery charge.