Hi Have a Latitude E7250 - The battery indicator light has started flashing (three amber, one white) which I understood was a bad BIOS battery. I replaced that battery and unit is now holding time and starting up fine, expect battery light is still flashing and ribbon power icon is saying "No battery is detected".

I purchased the same Dell replacement  Battery 52Wh Type 7.6V Type FVF59 - Which is the same as was in the original device. Indicator still flashing. Battery icon not lit at all when operating on AC with no battery installed.

I have uninstalled the battery driver from the Device Manager and restarted the laptop several times but still no change. I have done the same with the original battery as well with no improvement.

The BIOS battery appears to be working fine, so how do I reset the battery indicator?