HP 840 G5 shows orange charging LED and shows charging icon in windows without battery connected.

[Zibbo]

HP 840 G5 board number 6050A2945601 says "charging" in windows without battery connected. The motherboard looks clean visually, no signs of liquid damage no burnt or missing parts. I have not come across such an issue and I am requesting assistance on where to start troubleshooting.

[mon2]

On the battery connector is a pin that alerts the battery charger that the battery is attached or is not. Usually is an active low signal so if this pin is ‘0' state or 0 volts, battery IS attached. Vice-versa is battery is absent.

Confirm the voltage to ground of the pin on the battery connector. Maybe this pin is missing the pull-up resistor to park this signal line to ‘1' state when the battery is absent.

[Zibbo]

On the battery connector is a pin that alerts the battery charger that the battery is attached or is not. Usually is an active low signal so if this pin is ‘0' state or 0 volts, battery IS attached. Vice-versa is battery is absent.

Confirm the voltage to ground of the pin on the battery connector. Maybe this pin is missing the pull-up resistor to park this signal line to ‘1' state when the battery is absent.

Thank you mon2 but on this particular model the battery connector only has 4 connections, positive, negative and smbus.
There is 12v on positive and 3.3v on the 2 smbus lines.

[piernov]

Battery is internal, it is not supposed to be removed, so that's a non-issue to me.

[Zibbo]

Battery is internal, it is not supposed to be removed, so that's a non-issue to me.

I have also noticed that it says "53 minutes remaining to full charge" with or without battery and the battery volatge does not increase.

[Prosatanosz]

Battery is dead. Asus, Dell, the same thing.

[Zibbo]

Battery is dead. Asus, Dell, the same thing.

Its a good battery, I have tested it on another laptop