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Tom_Galenson
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How long should a battery last on this model?

HP 3105m Notebook
Microsoft Windows 7 (64-bit)

The reviews seem to claim that this Notebook (HP 3105m) will last upto 8.5 hours on an automated battery run down test.

 

Apparently it using WiFi, opening a website using the default browser, wait 30 seconds, close browser.  wait 30 seconds, open another website etc.  The test loop uses 50 different website and then starts over.  Runs till the machine hibernates due to low power on the battery.

 

According to the HP Assistant my battery is in "perfect" shape.  Yet, I am averaging maybe 4 hours to a flat battery.

 

Is there a publically accessiable battery run down test that is exactly similar to the above?  Or is it even reasonable to presume this machine will get upto 8.5 hours on a battery?

 

Tom

 

 

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How long should a battery last on this model?


@Tom_Galenson wrote:

..  Or is it even reasonable to presume this machine will get upto 8.5 hours on a battery?

 


Hi,

 

No, all vendors (I repeat all) can claim many things but for batteries on laptops, the best you can get for LIGHT tasks is around 80% to 85%. Doing more works will reduce time between charge dramatically.

 

Hope this makes sense.

BH
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@Tom_Galenson wrote:

The reviews seem to claim that this Notebook (HP 3105m) will last upto 8.5 hours on an automated battery run down test.

 

Apparently it using WiFi, opening a website using the default browser, wait 30 seconds, close browser.  wait 30 seconds, open another website etc.  The test loop uses 50 different website and then starts over.  Runs till the machine hibernates due to low power on the battery.

 

According to the HP Assistant my battery is in "perfect" shape.  Yet, I am averaging maybe 4 hours to a flat battery.

 

Is there a publically accessiable battery run down test that is exactly similar to the above?  Or is it even reasonable to presume this machine will get upto 8.5 hours on a battery?

 

Tom

 

 


There is no such thing as 8.5 hours those "In House" and "Control testing" are not reality based usage. Most I seen are far less then they say they can go for and they probaby stripped down the software installs to get the best battery hour usage. I seen my usage the best 3 hours and least Gaming Laptop 1.5 hours. Once you start loading your laptop those hours they posted will go down drastically they never achieve what they said it will do. If you can get your battery to hit 4-5 hours that is good-if your not gaming that is or CPU intensive apps then consider the battery drain to be extreme.

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Tom_Galenson
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Hi, 

The testing I am describing was by a Laptop type magazine.  It wasn't "in house" testing.  So my question remains, HP Assistant says my battery is "good".  But it runs maybe 4 hours before it quits.

 

Given the magazine report, is my battery bad or good?

 

Tom

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"Without [public] Data, you are just another person with an Opinion." W. Edward Demings, Data Scientist
---
"You are entitled to your own opinion but not to your own facts." Senator and Professor Patrick Moynihan
---
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You are saying that Laptop magazine in its review of your laptop said they got 8.5 hours out of the battery using "their" test and you are only getting about 4. You do understand that Laptop magazine is a shill for the industry, right? 4 hours is very good. Based on the reviews I have seen you are getting as good a battery life as it can give. 

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Tom_Galenson
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@Huffer wrote:

You are saying that Laptop magazine in its review of your laptop said they got 8.5 hours out of the battery using "their" test and you are only getting about 4. You do understand that Laptop magazine is a shill for the industry, right? 4 hours is very good. Based on the reviews I have seen you are getting as good a battery life as it can give. 


Are you claiming all Laptop magazines are "shills" or just one?  I have found a number of them to be pretty reliable overall. And they were citing a pretty specific test that could be replicated.

 

I will admit, both of my notebooks appear to be at the 4 hour level.  I also have a Chromebook that was reported to run up to 10-12 hours and it does run up to 10-12 hours.

 

Oh well, sold one notebook and am playing with the other.  Thank you for your time.

 

Tom

 

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"Without [public] Data, you are just another person with an Opinion." W. Edward Demings, Data Scientist
---
"You are entitled to your own opinion but not to your own facts." Senator and Professor Patrick Moynihan
---
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I think Laptop is the name of a specific magazine often on sale in airports.  

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