Jump to content
Scot's Newsletter Forums
Webb

Optimizing notebook battery life

Recommended Posts

My new notebook came with some rather confusing instructions on optimizing battery life. I've done the charge/discharge cycle three times but I can keep it plugged in most of the time

 

The useful lifespan of the battery is adversely affected by the following usage patterns:

 

Using the computer on constant AC power.

 

Not discharging and recharging the battery to its extremes, as described above.

 

Frequent use; the more you use the battery, the faster it will reach the end of its effective life. An embedded battery has a life span of more than 1,000 charge/discharge cycles.

 

Optimizing battery life

 

Use AC power whenever possible, reserving battery for mobile use.

 

Excessive recharging decreases the battery life.

Share this post


Link to post
Share on other sites

Removing the battery isn't a practical option.

 

Opening the case would void the warranty.

 

In the event I want to take it somewhere I'd have open the case again to put the battery back in.

Share this post


Link to post
Share on other sites

Oh, it doesn't come out like normal laptops/netbooks?

 

That would be a big no no, as the battery will be the first part to go out on a laptop.

 

I wouldn't buy any laptop without a removable battery.

Share this post


Link to post
Share on other sites

http://www.newegg.co...N82E16834314645

 

This is the model. I bought because it was cheap and I plan to use it just to download/stream video to my HDTVs with its HDMI port. I have two TVs so I need to move the computer back and forth. It's worth what I paid for it. The battery doesn't just slide out and I don't think removing it is easy or even possible.

Share this post


Link to post
Share on other sites

I've kept the battery in all the time on the 5 notebooks/netbooks I've owned and I've kept them plugged in for the majority of the time. The battery on my old HP (2001) lasted at least 5 years. I did not buy a new battery because it was getting old, was heavy to lug around so I used it plugged in.

I don't know about the Micron (received from someone in July 2003) because I donated it to someone who had no computer.

Asus eeepc (Jan 18 2008) battery might last about 15 minutes less than it did when new.

Acer 722 (Aug 18 2011) and Acer (Aug 18 2013) I haven't noticed any problems yet.

 

I did condition my Acers as you did by running the battery down three times, and fully charging before using again.

Share this post


Link to post
Share on other sites

So what's the general opinion about a new notebook battery? Mother's new Lenovo reported battery not in good shape (Lenovo's own hardware report) after about 6 months and Lenovo shipped me a new battery without a single question asked. It had been on AC power most of the time. Now I've started unplugging and letting the battery run down about 75% before plugging in again. Is this necessary?

Share this post


Link to post
Share on other sites

Removing the battery isn't a viable option.

 

It's not a pop out and I've read that it's not even replaceable.

 

To remove it I'd have to open the case, voiding the warranty. Maybe after the warranty expires.

Share this post


Link to post
Share on other sites

Then in your situation, when it is fully charged, unplug it and use it on battery. When the battery warning comes on, plug it in and recharge.

Keep repeating this pattern until the battery can't be recharged.

 

Next time when shopping for a notebook, be sure to check if the battery is easily removable. If not, walk away from the purchase no matter how good it sounds.

Edited by zlim

Share this post


Link to post
Share on other sites
The useful lifespan of the battery is adversely affected by the following usage patterns:

Using the computer on constant AC power.

 

That charges the battery to 100% all the time. The more voltage you put in the li-on cell, the more stress on the cell; the more stress, the less discharge/charge cycles your battery will have.

 

Not discharging and recharging the battery to its extremes, as described above.

 

Every time that discharge to 0% /charge to 100% occurs, you use 1 charge/discharge cycle. Shallow charging (like discharge to 40%, plug in and recharge to 70%, unplug) saves some cycles.

 

My suggestion is for you to plug in when the battery is at 30-40% and unplug when the battery is at 75%.

 

Next time when shopping for a notebook, be sure to check if the battery is easily removable. If not, walk away from the purchase no matter how good it sounds

Until manufacturers include a battery switch, I would never recommend a laptop with an internal battery.

Edited by b2cm

Share this post


Link to post
Share on other sites
My suggestion is for you to plug in when the battery is at 30-40% and unplug when the battery is at 75%.

 

That's my plan. Thanks for your help.

Edited by Webb

Share this post


Link to post
Share on other sites

Disassembly of your notebook

 

appears you even have to remove the motherboard to update the RAM! I have to say, I haven't seen a laptop this complicated to upgrade since the 90's.

I had to remove the keyboard in a micron to add more RAM. That's something I don't want to repeat.

 

Battery info program (no install) just run the exe file when it is operating on battery to get info.

http://www.nirsoft.n...ation_view.html

Share this post


Link to post
Share on other sites
appears you even have to remove the motherboard to update the RAM! I have to say, I haven't seen a laptop this complicated to upgrade since the 90's.

 

I had to remove the keyboard in a micron to add more RAM. That's something I don't want to repeat.

 

You sure this isn't a mac :hysterical:

Share this post


Link to post
Share on other sites

NirSoft looks fun but it doesn't seem to do much that would benefit me except estimate the time to recharge.

 

My plan now is to set the Windows low battery warning to 30%, then plug it in when the warning goes off. I'm still looking for something that would notify me when it recharges to 75% so I don't have to keep looking at the battery meter.

Share this post


Link to post
Share on other sites

That's fine ... Wait till you hit the sealed post in the middle of the back... The only way is to use a hot soldering iron to melt the plastic riveting . Talk about nerve rattling.

 

Re battery . There are some chargers about that will not overcharge . Some of them even have a reconditioning cycle .

 

Mac books had a battery reconditioning programme on them . Legacy stuff. " Mac Powerbook"

Share this post


Link to post
Share on other sites
it doesn't seem to do much that would benefit me
So you aren't interested in the Battery Wear level?

The wear level of a new battery should be around 100%, and it gradually decreases. This value is calculated according to the 'Designed Capacity' and 'Full Charged Capacity' values.

Share this post


Link to post
Share on other sites

capacity over time decreases, agreed.

 

but a lot of the hoopla over nicad batteries came from a study done in the 1960's that folks took for gospel for every circumstance:

 

the study was for a set of nicads that was discharged to some level and recharged, (over and over over the course of years)

eventually the batteries indeed lost capacity to that pre-determined percent to recharge level.

from that, everyone took the ball and ran with it stating you must completely discharge nicads every time you use them.

which isn't the case.

Share this post


Link to post
Share on other sites

This is a lithium battery.

 

I'm going to install the NirSoft monitor but I'm not going to obsess over battery life now that I have a plan in place.

 

I don't have any plans for this computer to ever leave the house but if I develop any plans in the future I'd like to have a functioning battery (assuming nothing else goes bad before then). If and when the battery goes I'll just buy another AC adapter (less than $10) so I can keep it in its two locations.

Share this post


Link to post
Share on other sites

Totally OT but just a comment on your sig -

Some countries use the metric system. Others land men on the moon.

The US uses the metric system in many cases, particularly in science. Search Quora for "metric system".

Also 20% of Americans believe the sun revolves around the Earth, and many believe the Earth is less than 10,00 years old. Some comments I've read from people who believe it is 2015 years old.

I know it's just a whimsical throwaway statement, but do you think the LHC uses SAE?

Share this post


Link to post
Share on other sites

Also 20% of Americans believe the sun revolves around the Earth, and many believe the Earth is less than 10,00 years old. Some comments I've read from people who believe it is 2015 years old.

Probably the most frightening thing I've read all week.

Share this post


Link to post
Share on other sites

This is working great. I use it on weekends for watching movies so it discharges about once a week. I/m recharging it for this weekend and BatteryInfoView shows a Battery Wear Level of 104.4%.

 

:thumbsup:

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×
×
  • Create New...