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Dualshock 4: LED's effect on battery life test

Wouldn't it be better to just measure the difference in current draw and calculate battery life? How he is doing it introduces too many variables and won't be accurate.
 

Steel

Banned
Wouldn't it be better to just measure the difference in current draw and calculate battery life? How he is doing it introduces too many variables and won't be accurate.

He tried that:
I tried but unfortunately there is not with the equipment I have. The LED's are wave soldered to the board and the only way I could get underneath the LED array would be by connecting needles to the ends of my multimeter, however that would likely break the LED array off of the board by the looks of it if I tried to get anything underneath it. That being said I would likely only get a reading of how much power is being sent to the LED's not necessarily how much power the LED array is using at that time.
 
Maybe they should have put in less useless gimmick crap like the light, touch pad and speaker and put a decent battery in instead. While they're at it how about make the controller $50.

Sounds like you just don't like the controller. If it's a deal-breaker for you, I suggest you look into getting a different console, since most PS4 games are using those "useless gimmicks".

And if I'm not mistaken, the battery is pretty decent. It's 1000mAh, which is twice the capacity of the Dualshock 3.
 

Oppo

Member
What was the point of the LED again ?

It has a few uses:

Login player ID w/camera
Physical controller ID (which is player 1, 2 etc)
Correction factor for accelerometer drift
Splitscreen auto config
Player feedback (effects)
 

tokkun

Member
I think the data from this test would be more useful if you had taped down one of the analog sticks so the controller would be continually sending data.

Comparing the power use when the controller is sitting idle is not representative of the actual use case that people are interested in.

Consider the following hypothetical situation: Say the LED increased power consumption by 30% in idle but only 3% when the controller is in use. Measuring battery life in idle would lead you to make a conclusion that would not hold true in normal use.
 
It has a few uses:

Login player ID w/camera
Physical controller ID (which is player 1, 2 etc)
Correction factor for accelerometer drift
Splitscreen auto config
Player feedback (effects)

All great ideas, but I still think we should have the option to turn it off.

Giving the gamer more options is never bad initiative.
 

Oppo

Member
All great ideas, but I still think we should have the option to turn it off.

Giving the gamer more options is never bad initiative.

Yeah, if it bothers enough people, sure.

I think it would have to be on for any two-player local action, but if it's a single player game they should just have it shut off once a game boots, if the player so chooses.
 

Five

Banned
What might work is if there were times when the game or software mandated that the LED be on, and otherwise it was up to the player to have it on/off. So, in the XMB, or in pause menus, and maybe in multilplayer character select and stuff like that, or any time the Move functionality was being used, the LEDs would be turned on, but otherwise the player could have the lights off.

I think the data from this test would be more useful if you had taped down one of the analog sticks so the controller would be continually sending data.

Comparing the power use when the controller is sitting idle is not representative of the actual use case that people are interested in.

Consider the following hypothetical situation: Say the LED increased power consumption by 30% in idle but only 3% when the controller is in use. Measuring battery life in idle would lead you to make a conclusion that would not hold true in normal use.

Analogue inputs are always sending data. I haven't worked with a PS4, but this is how it works on PC with, for example, the 360 controller. The buttons, on the other hand, probably only send Up and Down notices, although it's also possible that the controller is sending the whole button state each call (once a frame or more, depending on the software's programming).

Some of the power draw from regular play is going to be in audio sent and rumble usage. If there's a game where could drive a car in a circle, or against a wall, and occasionally have audio come through, that would fairly representative.
 

|ync

Member
I agree with the people saying that testing the drain with idle controllers is not going to provide useful information. An idle controller is going to have lots of power saving features kicking in and isn't representative of power draw during gameplay.

I don't know if you have access to a power supply but can you power the LEDs from an external source and just measure the power consumption? That would be much easier and more accurate than doing the battery drain tests.
 

Vooduu

Member
Can't Sony release an update where they can just dim the LED?

Edit: After reading some more, seems like it's mainly other factors. Bigger battery DS4 incoming?
 

USC-fan

Banned
Can't Sony release an update where they can just dim the LED?

Edit: After reading some more, seems like it's mainly other factors. Bigger battery DS4 incoming?
Then the controller will be heavier.

8hr is a the trade off. Most people do not game 8hr straight. Its still double the battery life of the wiiu gamepad.

Also you can always get a longer usb cable if you run into any issues. I do not see led using any big part of the battery.
 

Steel

Banned
Can't Sony release an update where they can just dim the LED?

Edit: After reading some more, seems like it's mainly other factors. Bigger battery DS4 incoming?

Current battery is a vast improvement from DS3 specwise, there are just so many more things drawing battery power in this case.
 

watership

Member
Current battery is a vast improvement from DS3 specwise, there are just so many more things drawing battery power in this case.

This to me says that there will be more software choices for the controller soon, or a newer model with increased battery life.
 

Frodo

Member
Can't Sony release an update to patch a camera on top of the TV connected to the PS4 to make the lightbar useful?
 

rbanke

Member
As others have mentioned, I'd like to see active controllers compared.

That there are so many LED's in it will add a little more draw, but really this should be nothing compared to the increased polling (assumed that they got lower latency by upping the polling, can't say for sure) and added Bluetooth audio. There is a reason wireless gaming mice are not super popular and are riddled with battery life complaints.
 

nib95

Banned
They really skimped out on the battery capacity. Sorry Sony, I know the controller has a lot of features, but at £55 here in the UK, a larger or more capable battery should have been included. Thankfully charging is pretty easy, and third party batteries with far better capacity should be easy to fit.
 

Ghazi

Member
First of all, this was awesome of you to do, xn0, interesting to say the least.

I wonder how long the DS4 with LED off would last when playing a game, I love how long my DS3 lasts on a single charge, and I'm a little sad to hear it's worse on the 4.
 

xn0

Member
First of all, this was awesome of you to do, xn0, interesting to say the least.

I wonder how long the DS4 with LED off would last when playing a game, I love how long my DS3 lasts on a single charge, and I'm a little sad to hear it's worse on the 4.

Thanks, I was glad to do some OC, NeoGAF is a great forum.
 

Rafterman

Banned
They need to fix this asap. Let us turn it off, this controller dies too damn fast.

It's not the LED that's causing the issue. These tests don't show anything other than the fact that a light uses more power than no light, which everyone should have already known. When the controllers are actually being used in games the difference in battery life between the two will be minimal because there are other parts that use far more power. Basically even if his tests showed that turning off the LED increased the charge time from 10 hours to 20 when idle that doesn't mean it's going to last twice as long while gaming. In fact I'm willing to bet that under normal gaming conditions, using both the rumble and sound, that the difference would be insignificant between the two. If all people are worried about is their idle charge time that's what the "turn off the controller after so many minutes" settings are for.

I hope Sony gives the option to turn it off, but it's not going to be the fix you are looking for in terms of battery life.
 
If Nintendo won't patch a way to blank their pads screen with it's not doing anything but showing what's on the TV and only giving 2hours play time, then I can't see Sony prioritizing this with all the shit they're probably working on at the moment.
 

TAJ

Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that.
The 360 wireless controller (which I still use often because PC) has an always-on LED and its battery life is so long that I actually have no idea how long it is. Tens of hours.
Meanwhile DS4 is 7 hours for me and DS3 and SixAxis have been <6. (lol30lol)
 

Rafterman

Banned
The 360 wireless controller (which I still use often because PC) has an always-on LED and its battery life is so long that I actually have no idea how long it is. Tens of hours.
Meanwhile DS4 is 7 hours for me and DS3 and SixAxis have been <6. (lol30lol)

Your DS3 broken or you are mistaken. I get much closer to 30hours than 6, and so do most people. Do you honestly think people would be complaining about the DS4 if it lasted longer than the DS3?
 

TyrantII

Member
Whats the feasibility of throwing a slightly bigger battery in?

I know you could with the DS3's, but is there enough room in the DS4?
 

Steel

Banned
Whats the feasibility of throwing a slightly bigger battery in?

I know you could with the DS3's, but is there enough room in the DS4?

Technically the current battery of the DS4 would qualify as a bigger battery by DS3 standards. But I could see something that hooks onto the micro usb as a backup battery pack, it could even simultaneously cover up the light(yes please). Third party most likely.
 
As others have mentioned, I'd like to see active controllers compared.

That there are so many LED's in it will add a little more draw, but really this should be nothing compared to the increased polling (assumed that they got lower latency by upping the polling, can't say for sure) and added Bluetooth audio. There is a reason wireless gaming mice are not super popular and are riddled with battery life complaints.

I use a Logitech Marathon mouse and I only have to swap out AA's every year and a half or so *shrugs*
 

CraZed

Member
I played a 10 hour session of Assassin's Creed IV yesterday and didn't even get a low battery notification. The battery life is fine even with the LED.

This &#9650;. I Played AC4 and NBA 2k14 from 10pm damn near straight to 9 in the am (I work nights and the house was asleep) and didn't have to change controllers until about 8 am, which is when I got the low battery alert. It's fine.
 

fritzo

Member
side question: is the OFFICIAL Sony charging station available yet?

ds4-charger-official.jpg
 

Rafterman

Banned
I use a Logitech Marathon mouse and I only have to swap out AA's every year and a half or so *shrugs*

That's not a gaming mouse. I have a G700, it lasts about three hours of continuous use before having to either plug it in or change the batteries. It's so annoying I bought an Enloop 4-pack to keep swapping them instead of having to stay plugged in all the time.
 

mrklaw

MrArseFace
there will be lots of things affecting battery life. As you can only use 4 controllers instead of 2, it may be reserving two bluetooth channels for each controller - one for audio? If it keeps that audio streaming connection open permanently (even if not actually playing anything) that could use up battery pretty quickly.
 
Unless you're posting from Africa from a ruggedised laptop with a hand crank for power you should drop the tired drive-by memes.

oh BURRRRN. Good show :D

OT: Light won't bother me, and 8-10 hours seems like the absolute maximum I would spend on a single gaming session anyway, not sure I can see the issue here. I like the DIY approach to finding out the comparative battery drain though!
 

xn0

Member
It's not the LED that's causing the issue. These tests don't show anything other than the fact that a light uses more power than no light, which everyone should have already known. When the controllers are actually being used in games the difference in battery life between the two will be minimal because there are other parts that use far more power. Basically even if his tests showed that turning off the LED increased the charge time from 10 hours to 20 when idle that doesn't mean it's going to last twice as long while gaming. In fact I'm willing to bet that under normal gaming conditions, using both the rumble and sound, that the difference would be insignificant between the two. If all people are worried about is their idle charge time that's what the "turn off the controller after so many minutes" settings are for.

I hope Sony gives the option to turn it off, but it's not going to be the fix you are looking for in terms of battery life.

You are absolutely correct and I stated this in my test. Of course no LED is going to use less power than the DS4 with the LED on. However I was testing how long the controller lasts at idle, and when the DS4 without the LED lasted over twice as long maybe having the LED on is significant given then 3.65v battery Sony is using in the DS4.
 

ypo

Member
You are absolutely correct and I stated this in my test. Of course no LED is going to use less power than the DS4 with the LED on. However I was testing how long the controller lasts at idle, and when the DS4 without the LED lasted over twice as long maybe having the LED on is significant given then 3.65v battery Sony is using in the DS4.

How long did it take for the LED to bring the battery down one bar?
 

Steel

Banned
How long did it take for the LED to bring the battery down one bar?

13 hours when the one without was 3. For reference, it takes my Dualshock 4 when being used for gaming about 5 hours to get down to 1 bar. So without bringing the Led on or off into question it would seem that the DS4 lasts about twice as long when not being used for gaming.
 
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