Why battery shows 99% when.... :: Steam Deck General Discussions

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karmazyn1 Jul 20, 2022 @ 10:13pm

Why battery shows 99% when....

.....I unplug it from the charger? Should it not be 100%. Is my Deck's battery faulty? Should I be worried, do I need to reformat battery or something. Thanks.

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Originally posted by invision2212:

Originally posted by karmazyn1:
Originally posted by invision2212:
once the battery is charged the deck powers from the wall plug so you probably lost that 1% in the meantime while playing plugged in.
What happened was. I left Deck overnight to charge. I unplugged it this morning, (Deck was in sleep mode). I pressed power button to wake it up, pressed 3 dots and checked battery, it was showing 99%. Is this normal? Thanks.

yes its normal. the deck will stop charging the battery if left plugged in for a long time so it doesnt constantly trickle charge it and stress the battery.

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Showing 1-14 of 14 comments

invision2212 Jul 20, 2022 @ 10:17pm

once the battery is charged the deck powers from the wall plug so you probably lost that 1% in the meantime while playing plugged in.

karmazyn1 Jul 20, 2022 @ 10:29pm

Originally posted by invision2212:
once the battery is charged the deck powers from the wall plug so you probably lost that 1% in the meantime while playing plugged in.

What happened was. I left Deck overnight to charge. I unplugged it this morning, (Deck was in sleep mode). I pressed power button to wake it up, pressed 3 dots and checked battery, it was showing 99%. Is this normal? Thanks.

The author of this thread has indicated that this post answers the original topic.

invision2212 Jul 20, 2022 @ 10:31pm

Originally posted by karmazyn1:
Originally posted by invision2212:
once the battery is charged the deck powers from the wall plug so you probably lost that 1% in the meantime while playing plugged in.
What happened was. I left Deck overnight to charge. I unplugged it this morning, (Deck was in sleep mode). I pressed power button to wake it up, pressed 3 dots and checked battery, it was showing 99%. Is this normal? Thanks.

yes its normal. the deck will stop charging the battery if left plugged in for a long time so it doesnt constantly trickle charge it and stress the battery.

karmazyn1 Jul 20, 2022 @ 10:44pm

Originally posted by invision2212:
Originally posted by karmazyn1:
What happened was. I left Deck overnight to charge. I unplugged it this morning, (Deck was in sleep mode). I pressed power button to wake it up, pressed 3 dots and checked battery, it was showing 99%. Is this normal? Thanks.

yes its normal. the deck will stop charging the battery if left plugged in for a long time so it doesnt constantly trickle charge it and stress the battery.

Thanks friend. I will sleep calmer now.

Andeddu Jul 21, 2022 @ 4:21am

Battery damage can occur when the device is charged to 100% or drained to less than 5%. The software tries to stop that from occurring in order to maintain battery health.

karmazyn1 Jul 21, 2022 @ 4:49am

Originally posted by Andeddu:
Battery damage can occur when the device is charged to 100% or drained to less than 5%. The software tries to stop that from occurring in order to maintain battery health.

Oh cool. Thanks. So I can never allow battery to go below 5%. I did not know that.

Andeddu Jul 21, 2022 @ 5:11am

Originally posted by karmazyn1:
Originally posted by Andeddu:
Battery damage can occur when the device is charged to 100% or drained to less than 5%. The software tries to stop that from occurring in order to maintain battery health.
Oh cool. Thanks. So I can never allow battery to go below 5%. I did not know that.

You can but it causes battery health to decrease at a faster than normal rate. Battery health degrades over time due to recharge cycles however you can speed up the degradation by getting close to or completely discharging your battery. The same is true for any lithium ion battery which I why I try to charge my phone when it drops to 10%.

KyleBarrech Oct 31, 2022 @ 3:23am

I have the same "issue". I just got my Steamdeck and it never charges to 100%, it stops at 99% every time I recharge it.
So I don't have to worry?
(I mean, the thing is new, and I already got a dock that refuses to work, so I would like not to have to worry about the battery as well...)

Last edited by KyleBarrech; Oct 31, 2022 @ 3:35am

Spiegel Oct 31, 2022 @ 3:55am

Originally posted by KyleBarrech:
I have the same "issue". I just got my Steamdeck and it never charges to 100%, it stops at 99% every time I recharge it.
So I don't have to worry?
(I mean, the thing is new, and I already got a dock that refuses to work, so I would like not to have to worry about the battery as well...)

How long do you wait, mine takes forever from 99% to full. When its full the number is no longer shown, only the green bar. When unplugged it goes down 99% almost instantly so waiting for the last 1% is pretty much waste of time.

KyleBarrech Oct 31, 2022 @ 3:59am

I tried several durations, I don't know...
A few hours...
I just want to be reassured at this point, I guess. Battery life has been, as I expected, variable: six hours or so on Okami HD, a little more than two hours on The Witcher 3, so no problem with battery life per se.
I just think that this 99% "limit" is very weird, and hope it's not an indication of a larger problem.

Last edited by KyleBarrech; Oct 31, 2022 @ 4:29am

#10

Spiegel Oct 31, 2022 @ 4:31am

Originally posted by KyleBarrech:
I tried several durations, I don't know...
A few hours...
I just want to be reassured at this point, I guess. Battery life has been, as I expected, variable: six hours or so on Okami HD, a little more than two hours on The Witcher 3.

Thats seems pretty normal battery life for steam deck but i dont play those games so cant say for sure.

#11

KyleBarrech Oct 31, 2022 @ 1:49pm

Currently wondering if I should write to the technical support to be sure or just let it go.

#12

恋恋风尘 Mar 9, 2024 @ 1:52pm

> I’m on latest OS & as soon as I take the deck off the charger (tried overnight & charging for 4 hours), it goes to 99%. I’ve never seen my deck display 100% battery life.

I have the same issue.

#13