How to fix Steam Deck battery drain and calibration issues

In this video I show off how to resolve the bug with the steam deck where the battery drains really fast or the battery percentage no longer reports properly. The main takeaways from this video are:

1. Your steam deck must be drained to the point where plugging it in no longer powers it on.

2. You may have to attempt this multiple times before success. If you turn your deck back on and the battery health has not changed, you must try this again.

3. I forgot to mention this but use the standard steam deck charger that comes with it.

If the deck will not stay off no matter what, boot up the deck, shut it down, then boot it once more and see if the battery life shows the proper amount.

[harveybrooks]

worked very well :D went from 17% to 98% now. also game time went up so much now. went from 35 minutes-45minutes to 2-5hours of gaming depending on the title. thanks alot bro you deserve the likes and subs. you got mine that is for sure.

[rowdyrod]

Mine is at 26%, I've tried a similar fix without results. The key difference that you pointed out was that the steam deck didn't turn on after plug in it in once the battery is fully drained. I'm gonna try it again tomorrow with your directions. 🤞🏼

[PilotPerkins]

May 2023: This worked for me so far. Thanks for the help!

[MarcHartway]

Thank you so much! Appreciate this video, saved me some cash on a new battery after a few days of having the steam deck.

[rotorbob]

So far it seems to have fixed my steam deck. Thank you for the instructions!!!!

[jessrei]

Once you get a steam deck, first thing to do is drain that sunovabattery until it dies then charge to full and you get 100% battery health.

[runnerthemoose]

This needs to be turned into a drinking game every time he says "basically" take a shot, guaranteed drunk 5 mins and 3 seconds.

[ardyyambao]

new subscriber here. i’ll try this method once my battery got drained. it’s weird that i barely used my steam deck and my battery health is already at 92%. hope this method works for me to. thanks.

[KayezTP]

Or you could Unscrew the back. Pop the battery connector out, leave it out for a min then back in. That's worked for me. I know some may not feel confident to do that.

[Catz]

i tried to put windows 11 on my steam deck and the battery started to drain really badly so i put steam OS back on my deck and it told me my battery life was 15% when i contacted steam to send it in to fix it they told me it would be $183 so i figured id just deal with it then i found this video and holy shit it worked thanks dude my battery life is back to 97% and its showing the correct battery life

[lanyushan]

It's worked!! but if the software crashes, you might need to do it again, I hope they can fix this problem.

[spacecat]

i got mine brand new, it was 93% of battery health, i did this and now it shows 99% im very glad. thank you. if it was supposed to go up to 100% let me know but im happy now

[starlytesherice]

Hey thanks a lot the video did help and it work I got it to a 100%. Great video

[bcarroll]

OK, I got it to not power up when the cable is plugged in but the charging LED just blinks 3 times slowly, skips 2 blinks, repeats. Is this what it should be doing?

[kondor]

Basically, this is basically correct. Basically. In all seriousness, thanks for this.

[halilhammer]

**UPDATE**
ITS BEEN FIXED important things are make sure after you drain in bios you can also sit at desktop to drain the last 5%
Now I'm doing a fresh Steam OS and going from a 256 oem to 512 991a samsung 2230

I have this problem for the first time last night playing CP2077. It was fully charged and lasted about 15 minutes.

This morning it was fully charged and I left this morning with its bios left on.

Came home and now it's charging and I turned ot on for the first time. It's says 80% and lasts over 2 hours instead of this morning 100% and only 0 minutes remaining.

Haven't played anything yet because it's still charging but a good sign so far.

Hopefully they fix this issue lol so dumb but hey I guess that's expected for first gen shit

[darewinvillanueva]

in this processed the battery health will go back to 100% in the energy saving-system settings

[ChungusKhann]

I can’t seem to prevent it from booting whenever the power cable is connected.

[supergamer]

I think you can also put it in battery storage mode which does the same thing but is a lot faster

[PIOPYDUDE]

Hey, for the guys who swapped out their SSDs at one point, your problem might be super easy to fix!

If you've unplugged your battery and swapped your SSD, you probably didn't plug your battery back in properly. Take a quick look and see if it's loose!