Envy 14 Battery Life Log

Not sure if this has been covered but can you disable turbo boost only when you're on battery? Or is that just the battery settings for processor power management?

 

They're probably both reporting from the same source, so it could just be an error, but it's also possible that you've got a defective battery - you might want to open the battery compartment and see if it's got a visible leak.

 

Whoops, sorry.

 

Hey guys. My battery got around ~4:30 just two days ago. It was mid-brightness, Intel GPU, on Balanced, default settings, clean installed. I was happy with it.
But a day later, the BatteryMeter reports a battery life of 2:49. Same settings and everything. The hell happened? D:

 

That sucks man! Have you tested it out and timed it yourself to see if it really lasts longer than the estimate? Also, were doing the same stuff when it lasted 4:30 as you did when it lasted 2:49?

 

Doing the same stuff pretty much, web browsing. The estimates were dead on both accounts.

The only difference is the number of program on the HDD. I installed some other stuff like MS Office, Photoshop, some Steam games, etc. I also transferred all my music. All this was done while on A/C power. None of these apps were running under battery power.

Also, do you think my battery just has to be set in a little more? It was just my second or third run through of it.

 

I'm curious as to the ability to undervolt the laptop. I personally don't care whether it's done through hardware/BIOs or software but the first thing I usually do after I get the laptop besides the initial few charging cycles is to take out the battery and see how low the voltages can go while still maintaining stability.

 

You used it?

 

Does undervolting help battery life or just reduce temperature?

 

Wait what. >.>


Both times are from the 100% charged mark.

 

Anyone attempt dvd playback with wifi off and screen settings decent enough to watch a movie? Figure that is something those that travel a lot would do.

 

Both

From high school physics principles

Power(watts) = Voltage^2 / Resistance

Might be a bit more to it than that but lowering the voltage lowers power consumption exponentially which should increase battery life as well lower the temperature. There's also a slight secondary benefit that at lower temperature circuits have lower resistance but it's most likely a negligible amount

 

Mine just did the same thing. I was getting 3:15 minutes the first few times but just now BatteryBar shows 2:34. It could have something to do with installing Battery Eater this morning, I don't know.

 

Yeah, strange, right?

Okay, so I've gone through the battery till there was literally no juice left, and its fully charged now. I'm gonna run through it once more and see if it goes up.

From what I read, it looks like BatteryBar gets these estimates from previous data. So it's probably inaccurate.

 

My estimate actually started going back up after a while on battery and inched up towards the previous estimates. It is just some BatteryBar weirdness, the actual battery life should be pretty consistent.

 

Alright, cool.

Only been a few days since I've been using it. Should give these things some time.

 

Did you try using it and timing it to see if you really get what was estimated?

 

I don't know if it it's relevant, but my Sony CW has had a battery meter that jumps all over the place. Real world use though has been a rock solid 4 hours or so.

In short, don't trust it.

 

I don't know why but my battery discharge rate is fairly high. My discharge rate is about 18000 mW. I'm on Intel graphics and how do I check that the ATI gpu is fully turned off?

 

Hey guys, does it consume a lot of battery power to listen to music (I'm using Mediamonkey btw)?

Is there a difference on headphones vs. laptop speakers on power consumption?

 

Yes it does both. The effect on temperature is about as dramatic as the effect on battery life. Which is to say, quite pleasing.

I undervolted a Turion Ultra ZM-80 with very nice results. Dropped 20 DegC and gained 30 mins of battery life.

 

Guys, has anyone fully drained their batteries several times to check for consistent battery life?

I'm hearing conflicting reports that have me worried about getting a second battery or not.

 

The fact that there isn't any undervolting software available for the new i-core series yet has me a bit worried. I loved the battery life increase undervolting my old Pentium M gave me, and I'd love to be able to do it again. But is it not possible to undervolt these new processors or is it just that no ones gotten around to it yet? It's been a while since release...

 

I think the difficulty is Turbo Boost. Since it can OC on a whim, the power draw keeps fluctuating, so it may be difficult to test and/or actually give any real benefits from an undervolt.

 

According to that formula though, wouldn't a lower resistance = more power?

 

Does the ODD use up a good amount of power when its not actually reading a disc? If so, would disabling it in the device manager save power or would you have to do some other crazy stuff to disable it?

 

It consumes very little to no power while idle. No point in disabling it. However I see the advantage of removing it to reduce weight, or supplement an additional HDD or SSD in that bay if you can find a way to mount it.

 

Resistance in that case does mean more power but higher resistance is primarily wasted as heat, decreasing the efficiency of the processor. Less resistance means more power goes towards the actual processing of instructions than waste heat.

 

i3 370
500GB HDD
Standard battery
WiFi ON - Bluetooth OFF
HP Recommended
Light surfing with a handful of videos from comic con.

4:51 til hibernation at 2%

I'll try and run a DVD at or near full brightness next time around.

 

I'm curious as to what people's discharge rate is on Battery Bar. According to Battery Bar, my discharge rate is around -16,000 mW. And overall, I get a 3 hour 33 minute full lifetime.

I have a feeling my discharge rate is a little high so I want to see what others have been getting.

 

Blarg, same specs, but more than an hour less for the lifetime. Does playing music on headphones the whole time really cut it that much?

Also, is there a way to get the HP Recommended setting on clean installs?

 

i5-450M, 6GB, 160GB SSD, wifi on, BT off, just web browsing

Mine currently says -10,100 mW, andthe full lifetime is listed as 4:52

 

Same build as mine. Hopefully I can expect close to 5 hours too.

 

are your 4-5 hour logs without the slice battery?

 

You should do a full discharge cycle, preferably one from 100% to about 5% in one session and then shutdown to help calibrate BatteryBar.

 

Didn't HP originally say this was going to have a 6-7 hour battery life and over 12 hours with the slice? I thought the whole point of the E14 was to compete with the macbook? I like the screen resolution alot on this thing but I think I might wait for some reviews on Gateway's new ID series, it claims to have 6 hours battery life and comes with 1gb 330m with Nvidia Optimus, but the screen is kind of crappy compared to the Envy.

 

So it seems like the i3 and i5-450M are getting a little better battery life than the i5-520M? I guess this makes sense as the i3 does not boost and the tb for the 450M is barely anything.

 

how is the 450 barely anything? rofl. 520 and 450 are nearly identical in performance.

 

comparing my 450m against my 540m I can see the 450m has a lower idle power draw (3w) whereas my 540m has 5w idle draw. I guess this could be why it is getting slightly better life.

 

HP claimed a number, in the same way that Gateway is claiming that number too.

 

Yes, I am getting 4-5 hours without the slice.

 

Someone explain me this. I'm running on second to the lowest brightness and my discharge rate is about 18000mW right now. My very first battery run barely lasted 3 hours. I cannot understand how you guys are getting 10,000mW discharge rate on light web browsing. what's going on??

 

I think you may have a bad battery GivingHope.

 

L3vi, what is your battery discharge rate and your battery life? I seen others get around 10,000 mW, 4-5 hours.

The question is, WHY is my discharge rate so high?

 

my discharge rate is -16000 also....would like to lower also

 

Donut, what kind of battery life did you get? and what brightness setting are you using?

 

I don't know why, but my battery life sucks. On my first run, I got about 3 hours of battery life before it went into hibernation. On Intel GPU, on medium brightness. Today, I just ran my second test and I got about 3.5 hours of battery life before it began hibernation. Again, on Intel GPU, but this time, on lowest brightness.
During my second test, I noticed that my battery discharge rate is around 16000mW-18000mW during web browsing on the lowest brightness. Other people in this forum has claimed around 7000mW-10000mW usage and 4-5 hours of battery life on their Envys, some with on max brightness. OK what's going on? This is VERY, VERY disappointing

 

yeah im getting pathetic battery life as well on the intel gpu and lowest possible brightness. i was hoping its just because i didnt do a clean install. did you?

 

Yep, I did a clean install of Windows 7 Ultimate. However, one of my friends also did a clean install on his envy 14 and got 4:30 battery life. BTW what is your battery life and discharge rate?

 

Did you turn off bluetooth?