GL502VS Discharging while Plugged-in

[ido505]

Hi,

I have got the new GL502VS with the 1070 gtx in it.
After reading a few topics in other forums I saw that some people complains about the battery - saying that it keeps discharging while connected to the charger.
Then, I noticed that it happens for me too.
It's not a big deal, but around 8% in an hour of playing Mafia 3.

Do you guys aware to this problem?
Is there anyway to fix it?

Thanks.

MODERATOR NOTE. Please see this post from June:
https://rog.asus.com/forum/showthread.php?88742-GL502VS-Discharging-while-Plugged-in&p=658857&viewfu...

[Jabarkas]

Bahz wrote:
Can I have a confirmation on how many people who have updated to BIOS version 300 and it was able fix the problem for you? It seems like we're getting different answers so we need to confirm this. Thanks.

It does not work for me.

[ido505]

So, I have finally going to get back my full refund for the last gen GL502VS that I have got.
Now, I don't know if I should buy the new kaby lake GL502VS, or add a little bit of money and choose one of the competitors..
After all the mess that this laptop cause me, it's hard to choose.
It's a great laptop for the price, but only if it works without any problems.
What do you think that I should do ?

[fenriv]

ido505 wrote:
So, I have finally going to get back my full refund for the last gen GL502VS that I have got.
Now, I don't know if I should buy the new kaby lake GL502VS, or add a little bit of money and choose one of the competitors..
After all the mess that this laptop cause me, it's hard to choose.
It's a great laptop for the price, but only if it works without any problems.
What do you think that I should do ?

This is also a solution ;). I personally think that there are just a good and a "not so good" product lines. The GL502VS clearly has some problems, so I would suggest to take a look at other variants (both within and outside of Asus).
Just make sure you read a forum about specific model before ordering it :D.

[nytwolf45]

Here's how mine looks like freshly turned on. I'm using Bios 300



and how it looks like as I was preparing to reply to this thread. Full on radiator mode.



Voltage spiked up from 556 mV to 1063 mV. Charge rate from 41W to 0.4W.

Well, probably the Bios 300 did improve the situation slightly but not totally fixed it.

[MnemonicSyntax]

Hi, guys.

I have a GL502VS and I've been following this thread after noticing a ridiculous amount of battery drain while playing The Witcher 3 for several hours straight last weekend.

Today, in between my classes I downloaded and installed the 300 version of the BIOS. I decided to give The Witcher 3 another run. My laptop was at 33% and I played for 2 hours and my battery increased to 47%. I then played Watch_Dogs 2 later and I also experienced battery charging (as opposed to draining) during gameplay.

However, I noticed later after playing The Witcher 3 for about three hours straight my AC Adapter brick was extremely hot to the touch, almost burning. Is this normal?

Beyond that, I'd say the 300 BIOS did the trick for me. YMMV.

[CR7_2011]

MnemonicSyntax wrote:
Hi, guys.

I have a GL502VS and I've been following this thread after noticing a ridiculous amount of battery drain while playing The Witcher 3 for several hours straight last weekend.

Today, in between my classes I downloaded and installed the 300 version of the BIOS. I decided to give The Witcher 3 another run. My laptop was at 33% and I played for 2 hours and my battery increased to 47%. I then played Watch_Dogs 2 later and I also experienced battery charging (as opposed to draining) during gameplay.

However, I noticed later after playing The Witcher 3 for about three hours straight my AC Adapter brick was extremely hot to the touch, almost burning. Is this normal?

Beyond that, I'd say the 300 BIOS did the trick for me. YMMV.

The BIOS 300 definitely does not fix the issue. Many of us have done much more extensive testing than this. You need to get your battery to 100%. Then start gaming on a game like Witcher or The Division or something demanding. Then after 1-2hrs you will notice the light on the fron of your laptop turn orange and it means that the battery has discharged. Exit the game and check the status of the battery, it will be drained from 100% down to 80%-90%, depending how long you played for...

For the people are saying that it has fixed the problem, they are wrong and the few people that have said that it fixes the problem seem to not have done thorough testing. So please do not come on here and report that is is fixed, as this gives ASUS the wrong impression that BIOS 300 has fixed it, when it has not. It might have improved it slightly, but definitely not fixed it.

The only thing that has fixed the discharging issues is undervolting the CPU and GPU.. This helps with both temperatures and stable CPU and GPU clock speeds.. Nothing else to date has had any positive impact...

[JujuPrime]

Just recently updated my GL502VSK (Kaby Lake) from bios 204 to bios 301. There is still some slight battery drain during gaming. It seem a little better than before. The good news is that on bios 204 the laptop was producing the coil whine on idle, now it is complete gone 🙂 . Overall still happy with this laptop and the battery drain is not much an issue for me.

[MnemonicSyntax]

CR7_2011 wrote:
The BIOS 300 definitely does not fix the issue. Many of us have done much more extensive testing than this. You need to get your battery to 100%. Then start gaming on a game like Witcher or The Division or something demanding. Then after 1-2hrs you will notice the light on the fron of your laptop turn orange and it means that the battery has discharged. Exit the game and check the status of the battery, it will be drained from 100% down to 80%-90%, depending how long you played for...

For the people are saying that it has fixed the problem, they are wrong and the few people that have said that it fixes the problem seem to not have done thorough testing. So please do not come on here and report that is is fixed, as this gives ASUS the wrong impression that BIOS 300 has fixed it, when it has not. It might have improved it slightly, but definitely not fixed it.

The only thing that has fixed the discharging issues is undervolting the CPU and GPU.. This helps with both temperatures and stable CPU and GPU clock speeds.. Nothing else to date has had any positive impact...

Yes, it goes to 80 or 90 and then back up.

The battery is designed to discharge while heavy use so that way it doesn't kill the battery prematurely. Once it discharges some, it will recharge.

The problem I had before was that it wouldn't recharge while gaming, period. It would discharge and never recharge, no matter how long I played. I played The Witcher 3 for nearly 6 hours last weekend and it was at full capacity when I started and down to 18% when I was finished.

The fact that it now recharges during heavy gaming (The Witcher 3, Watch Dogs 2) instead of just constantly draining has fixed the issue I had.

So no, I'm not wrong. Your condescending attitude isn't necessary and I don't need you to tell me where I can and cannot post. These are my experiences. Even with the same motherboards and BIOS firmware you won't get the same results across the board.

Posting that the BIOS worked for me isn't going to give ASUS any impression, because you still have people who have the issue.

Unless the issue is that the battery discharges while gaming and then starts to recharge again at a lower pecentage, then it's not really an issue afterall because that's by design.

"More thorough testing" You sound so pretentious. I'm not going to sit here and run programs that I won't use, and instead would rather use real world metrics, like the games I play every day.

[fenriv]

MnemonicSyntax wrote:

The battery is designed to discharge while heavy use so that way it doesn't kill the battery prematurely. Once it discharges some, it will recharge.

...

Unless the issue is that the battery discharges while gaming and then starts to recharge again at a lower pecentage, then it's not really an issue afterall because that's by design.

Thanks for the info. Now it's getting clearer what 300 bios was going to fix.
But could you please clarify why do you expect the battery to discharge under load "by design"?

Discharging means that the laptop is consuming more power than PSU/motherboard is able to deliver. And then, when charge level of a battery goes down we need even more power to both continue working and charge the battery at the same time.

One another reason to see a problem here is that new GL502VSK laptops (with kaby lake CPUs) are having 230 watt PSUs instead of 180 watt PSUs for Sky Lake builds (the build I have).

[MnemonicSyntax]

fenriv wrote:
Thanks for the info. Now it's getting clearer what 300 bios was going to fix.
But could you please clarify why do you expect the battery to discharge under load "by design"?

Discharging means that the laptop is consuming more power than PSU/motherboard is able to deliver. And then, when charge level of a battery goes down we need even more power to both continue working and charge the battery at the same time.

One another reason to see a problem here is that new GL502VSK laptops (with kaby lake CPUs) are having 230 watt PSUs instead of 180 watt PSUs for Sky Lake builds (the build I have).

Sure. And thanks for not being condescending toward me.

As I understand it, when a battery is at 100% and continues to remain plugged in, it is just overcharging the battery, essentially shortening it's lifespan quicker.

So by discharging some, and then recharging, it prevents that wear.

My issue was, it was never charging while plugged in WHILE heavy gaming. That's not a good thing. That shouldn't have happened.

The slight drain and recharge is normal, again at least from what I've read, which various reports will tell you different things. I'm not assuming to be an armchair expert on the matter.

I'm just happy that my laptop now charges while heavy gaming, instead of going to class after having gamed and only having a slight amount of battery left.