Ideapad S400 Battery backup Problem

Hi,
I'm using S400 notebok,i'm having battery backup problem,I'm getting 2 hrs backup only,Shall i do battery gauge reset to improve backup hrs,If ok,Then how should i do it?
plz g've reply..
Sridhar Gundu

Hi Sridhar,
Welcome to Lenovo Community Forums!
I’m sorry to hear that there is battery backup issue in your S400 Laptop, I suggest you to change the power plan, reduce the brightness and then check if the issue persists also please let me know the OS (Operating System) installed in the computer.
Hope to hear back soon
Best Regards
Shiva Kumar
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Ideapad S400 Battery Problem

Hi all ,
4 days back i bought a Lenovo S400 Ideapad with i3 processor(2nd gen), I am really concern about the battery back up its giving , currently its giving 1.5 - 2 hrs . any solution guys .
In Flipkart they have quoted 5 hrs as battery back up , so its a bit of concern that so early it should not give this poor backup .
hoping for a reply .
Solved!
Go to Solution.

hi Ranjan07,
Welcome to Lenovo Community Forums!
On Lenovo sites it also says 5hrs battery life, but this is an idle mode which means no application running and minimal brightness.
Windows is calculating your remaining battery hours of usage by checking your current discharge rate vs. The remaining charge.
You can use Passmark Batterymon to check the discharge rate, high discharge rate is caused applications / Background applications / services and power settings like brightness and wireless/Bluetooth.
On my lab PC here, discharge rate is around 15884mW so If we have the same discharge rate and battery charge of full 32000mW It will only last for about 2hrs.
My system is running on Windows 8 and I tried looking around seemed that there are steps to lower down the discharge rate by adjusting some settings like this on this Post
http://www.friedbeef.com/top-15-ways-to-extend-your-laptop-battery-life/
You can also fully charge your battery and see if the full charge will count as 32000mW, If it is nowhere cose to that then that definitely is a defective battery.
But still if the computer is already on minimal usage lower power settings, still your getting 1.5 to 2 hours,
You can always contact Lenovo Technical support for assistance.
Best Regards
Solid Cruver
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Nokia X201 battery backup problem

Hello..
I have a nokia x201 phone.the battery of my phone does'nt gives backup for more than 2-3hrs.
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the battery which i installed was orignal(nokia BL-5C 1024mAh) and same as previous i have upgradede the software of my phone through pc but the verison installed is latest and i have tried of rest of factory setting but it did'nt helped....
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Hi Yasumitsu,
Welcome to Lenovo Community Forums!
I’m sorry to hear that your S400 Laptop is charging only upto 60%, this issue in windows will get resolved by install the LEM (Lenovo Energy Management) and by choosing the (Optimized Battery Health), the Battery charges only to 60% and stops charging the battery and then it take its power from the charger, so if you want to charge the battery to 100%, you need to choose (Maximum Battery Life).
Do post us back if the issue still persists.
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Lenovo ideapad S400, battery not charging when plugged in

Hi, I had the problem where the battery didn't charge at all even if it was connected in the right way and the charger was plugged in. So I started to search internet for possible solutions. Those I found where to 1) disable alt uninstall ac and acpi adapter in Windows Device Manager. Restart computer.. Not charging problem is related to some Windows issue. 2) Choose the alternative "maximum battery life" in Lenovo Energy management.. Neither worked after several and time consuming tries... The problem here is Lenovos "smart" Energy management system that prevents the computer from charging the battery to "save it".. Solution: Uninstall Energy Management (Publisher: Lenovo) under Program and Features in Windows Control Panel and the problem is solved.. And don't reinstall this **bleep**ty program again....

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IdeaPad s400 battery status question

Hi how do i know when the battery if fully charged when the laptop is turn off, the battery light indicator is always on the only way than i can know is touching the charger and if it is cold means that is fully charged.

Hi Nick,
Welcome to Lenovo Community Forums!
I’m glad to inform you the status of the battery and its notifications have been explained in the image below for your S400 Laptop.
Spoiler (Highlight to read)
Do post us back for further queries.
Best Regards
Shiva Kumar
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Its been around a months since i got and have been using this laptop . Recently i noticed the Battery life indicator isnt working properly . it gives the wrong time remaining left . . for eg at 83 % it says 2hr 30 mins remaning when i have a battery life of 4 hours . ive tried uninstalling/ re installing Microsoft ACPI compliant control method battery from device manager but it didnt realy help . .
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Hi amy_t92,
Thank you for replying, I apologize for the delay in reply.
As per the query we understood that you are facing the issue with the battery indication is incorrect in your lenovo s510p laptop.
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Go to start search type Power Manager
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Lenovo ideapad s400 switchable graphics problem..!

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hi kuraysi,
Welcome to the Lenovo Forums.
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Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Ideapad s400 battery

Is it possible to upgrade to a bigger battery?

Hi whatever125,
Welcome to Lenovo Community Forums!
I think the Battery that were released for this model has minimum and maximum of 32Wh,4Cell.
and no higher battery is available as replacement or upgrade.
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Best Regards
Solid Cruver
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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
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Ideapad s400 touch bios or other hidden power management while on battery? or battery just weak?

Hi,
I have problems with performance when unplugging my ideapad s400 touch, and it does not seem to be related to windows or intel graphics power settings.
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In both cases, the intel graphics options and in the Lenovo Energy Management is set to the high/max performance settings.
So I am wondering if there are some hidden Bios power management or some other hidden power management going on, when it is unplugged or charging?
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hi x8lars,
Welcome to Lenovo Community Forums!
Can you try changing the power plan on your system to a High Performance Settings,
Also check the Advanced power settings and make sure that the Maximum Processor start and minimum are set the same with the Plugged in.
Let me know your settings,
Cheers!
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! This will help the rest of the Community with similar issues identify the verified solution and benefit from it.
Follow @LenovoForums on Twitter!

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While there are third-party utilities that measure the temperature of a notebook computer, it is important to understand that these utilities are not measuring the external case temperature. The actual case temperature is much lower. Never use third-party applications to diagnose possible hardware issues—instead,contact Apple or go to an Apple Retail Store or Apple Authorized Service Provider.

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Ideapad S400 Brightness Problem

I'm having a problem with a Lenovo Ideapad S400 Laptop on Linux. The brightness in any linux distribution is very low in comparison with windows 8 brightness.
Some people also had the same problem when downgrading from windows 8 to windows 7. See:
https://forums.lenovo.com/t5/IdeaPad-S-series-Netbooks/s405-s400-screen-brightness-issue-after-downg...
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Is there a specific solution to this problem on linux? For example, a procedure to force the brightness, a kernel module, a solution to a similar problem in another laptop, etc.
Solved!
Go to Solution.

Hi, this problem was corrected on kernel 3.8.3 by the kernel developers! I'm happy to say that many lenovo laptops now work in linux. Unfortunatly, not in windows 7 yet.
Instructions on ubuntu:
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instructions on ubuntu:
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i hope this will work also on other laptops and linux distributions

Ideapad S400 Battery backup Problem

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