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Troubleshooting and repair guides for the HP EliteBook 840 G6 laptop computer, a 10/10 iFixit rated laptop released in 2019.

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Swollen laptop battery, safe to repair?


Got an HP EliteBook 840 G6 with swollen battery. Is it safe to repair on my own? I've replaced non-swollen batteries, SSDs, etc before. I have the iFixit 54 Bit Driver Kit.

Because I can't close the laptop lid, it may be harder to open. I'm also worried the battery is so swollen, I won't be able to get the battery screws out.

My plan is to:

  • Discharge the battery to 0% to reduce potential energy if accidentally punctured, per iFixIt video.
  • Go outside near non-flammable items
  • Wear fire-proof gloves
  • Wear eye protection
  • Remove the swollen battery and place in a fireproof bag
  • Have a large bucket of water ready to extinguish any flames

How risky is this? I like having both hands and not getting burnt

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You're doing as much as can be expected to safeguard yourself in the event of anything untoward happening when removing the battery etc.

The only thing that you haven't mentioned doing is responsibly disposing of the faulty battery. ;-)

Here's the maintenance and service guide for the laptop.

Go to p.49 to view the procedure to remove/replace the battery.

Also at the top of the page you will find the part number for the battery. Search online using the part number only to find suppliers that suit you best

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thanks! good point about disposal. have you ever seen a battery so swollen it can't be removed? I'm worried the swollen portion may cover the T8 screws to remove the battery



Fortunately no I haven't, but if you go gently you may be able to coax it a bit if it is covering the screws etc, at least enough for you to be able to get them out and then the battery as well.

I guess that you won't really know until you open the laptop up and check

Good luck


got it, thanks! To drain the battery, I'm just going to use the laptop (Windows 10) until it won't boot up. I think it will not truly get to 0%, but close.


@ubuntu_python Yeah, you won't get to zero because the power management chip will shut it down before it gets there, but that's the best you can do, so go for it.


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ubuntu_python wird auf ewig dankbar sein.

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