HP elitebook 840 g2 turning on and off

[Laureen_]

Please help! My laptop after fully charged, turns off at 50% after which it starts coming on and going off in seconds. It only comes on after plugged in to a light source. I don't know what could be the issue 

[FRKelly]

How old is your battery?

If you have an aged  battery, then the battery voltage may drop suddenly at some point of discharge below a kind of threshold and the computer (or bios?) shut down/switches off.

you can use a tool like BatteryInfoView to watch %Capacity and voltage.

You may open the laptop and have a view at the battery. If it is blown up then there is the time to replace the battery.

[Laureen_]

The battery is getting to a year now. The battery doesn't look swollen either. It just goes off at 50% without warning, and starts coming on and off for a period of time. When plugged in, it comes on fully, and the battery percentage still shows 50% or whatever percentage it was when it Tripped off. 

[FRKelly]

Who made the battery?

The restart is strange. Are there any autostart options or start on ... options set in the Bios?

Does www.nirsoft.net › utils › battery_information_view.html  record any voltage drop shortly before the shutdown?

You may try to boot from an Linux-USB-stick. if the problem also occurs under linux, then you should be able to rule out a windows or driver problem.

Video problems are sometimes mentioned with sudden power off. Can you plug in an external display?

[Laureen_]

I sincerely don't understand the technical terms as I am just a regular user. However, it's getting worse as my laptop now trips off at 80%. I don't notice any auto start options. The trip offs are so fast in seconds hence I can't take note. 

Here is the battery make

Model: SBO3XL

 

 

 

[FRKelly]

Is the left side of the battery, i.e. the one without the label, flat? Or has it already become slightly raised? I can't really tell from the photo.

[Laureen_]

Yes. It is raised. I think it's swollen because it keeps getting bigger. And now, my laptop trips off at 95%. The laptop is only fully functional when connected to a power source 

[FRKelly · Accepted solution]

To summarize: the replacement battery, which is only one year old, is already swollen.

(Maybe  it's a guaranty issue)

What is the old battery doing? Does it still exist and does it behave better than the new one?

If not, a new replacement battery is probably the only solution. But which manufacturer should you choose so that the second replacement battery doesn't fail after just one year?

If you use original HP batteries, you run the risk with old computers that these batteries have already been stored for several years because HP no longer produces new ones.

[Laureen_]

Thank you so much for you help so far. I truly appreciate it

I had no idea the battery in my laptop is even a replacement not the laptop's original. Like I'd said earlier, I don't know much about the technical and material parts, just only how to operate. I will go for a new replacement battery and hope I don't experience this same issue again or anytime soon. 

Thank you for also, for the heads-up about getting up batteries too. Any particular brand you would recommend I get?