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GL502VS Battery drain when gaming (on AC power)

SeaSpray
Level 7
Hi,

I picked up an Asus GL502VS a few days ago and I'm very impressed with the overall system.

One thing that does bother me is the slow battery draw (even on AC power) when the system is used for VR and heavy gaming. With the power adapter plugged in, I'm noticing around 10% battery drain per hour of gameplay.

Is this normal? I would have preferred the power adapter to supply enough power that it wouldn't need to draw the battery down.

SeaSpray
39,541 Views
35 REPLIES 35

My benchmark has been running for 2 hours and the battery is still charging, not draining.

Someone on youtube pointed out that maybe there was a defect in earlier power controllers in the laptop itself. And maybe the issue is solved.

My serial number is in the P650,000 - P700,000 range. Could anyone who actually has the drain issue update us with their serial number. It might offer a clue.

Sorry for the triple posting but I've finished my benchmark.

Adrenaline Crysis 2 Benchmark Tool Ran for 4 hours. Laptop started at 10% battery. After 4 hours of continual stress test the battery was charged up to 60%.

CPU and GPU hovered between 75 - 85 C
GSYNC on @ 60 FPS sustained
Brightness 100%
Wifi on
Game loaded from spinning disk

Unless someone can give me a good reason to try a different benchmark, this shows that the battery drain issue isn't happening on these systems as of at least the P650000+ serial number.

Personally, I don't mind the 180W adapter since this laptop is meant to be portable and the 180W adapter is much lighter.*
However, I think Asus might have made a mistake.
According to Notebookcheck, among the laptops they have tested with 6700HQ and 1070, the average power consumption on Load is ~100W and reaches a maximum of 200-220W.
*The TDP of 1070 (laptop) is about 125W while the CPU is 45W so it really doesn't leave much headroom with a 180W, specially if you're pushing it.

On the side note, you should also benchmark the laptop while it's charging. I've heard that results in a performance drop.*

If anyone can recommend a benchmark that I can run continually I will put it to the test. Crysis was the only one I could run on a loop. 3dMark only lets you run on an infinite loop if you have a professional license which is $900 😞

Crysis 2 bench has an avg cpu usage of 50% so that might not be enough to draw the wattage you're speaking of.

However this probably means most games wouldn't have a problem, only ones where your CPU and GPU are completely pegged.

daggasoft wrote:
If anyone can recommend a benchmark that I can run continually I will put it to the test. Crysis was the only one I could run on a loop. 3dMark only lets you run on an infinite loop if you have a professional license which is $900 😞

Crysis 2 bench has an avg cpu usage of 50% so that might not be enough to draw the wattage you're speaking of.

However this probably means most games wouldn't have a problem, only ones where your CPU and GPU are completely pegged.


Use Prime95/OCCT for CPU and Furmark/Unigine for GPU.*
The second option for both are more alike to real gaming scenarios while the first is to test the temps and power consumption.*
Keep an eye out for the temps!*

OK cool i did use Furmark as well with no issues.

It is not fair that GL502VS with i7-6700HQ have power brick 180W what is insufficient because the same laptop with i7-7700HQ which suppose to be more power efficient have 230W power brick, in my opinion that is admission of mistake by Asus.

buth11 wrote:
It is not fair that GL502VS with i7-6700HQ have power brick 180W what is insufficient because the same laptop with i7-7700HQ which suppose to be more power efficient have 230W power brick, in my opinion that is admission of mistake by Asus.


I have got the same problem with my rig.
I have the option to return it, do you guys think that I should do it ?

Same thing for me. Its not the screen or keyboard backlight. I'm plugged in and downloading overnight, battery drop about 10%

nytwolf45 wrote:
Same thing for me. Its not the screen or keyboard backlight. I'm plugged in and downloading overnight, battery drop about 10%


If your battery drop under 90% then is an issue, but if only to 90% that is normal because when battery have from 90% to 100% laptop use only a/c power and buttery is not charging.