My brand new laptop battery doesnt charge upto 100%

my battery does not charge upto 100% its stops at 99% after hours of charging. what do i do?

Hi @ekezie
Welcome to the HP support Forums!
I understand that your notebook battery will not charge to 100%, I am happy to assist.
Since it is new did you interrupt the charge cycle at all. On many notebooks there are for lack of a better word charge thresholds to prevent the battery from charging when it is already above a certain level when first plugged in. This is to prevent repeated short charge cycles, which can reduce battery life. That may be the sort of thing that is happening.
However I would recommend taking a look at this page, and running the tests.
Testing and Calibrating the Battery (Windows 8)
Here is a document you may wish to look at, for future reference as it is useful for prolonging the charge duration.
Improving Battery Performance (Windows 8, 7, Vista)
Malygris1
I work on behalf of HP
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BRAND New laptop, battery not charging, please help me

Hi, I received my macbook today, and the battery is not charging. When my battery was still charged, I could use my macbook. The led on the charger was green. When it got to 0%, the laptop continued to work. So, I removed the charger (brillant idea) and it stop. Now, I can't start my laptop, and the led is yellow. The battery can't charge more than one "square" (which I can see on the battery itself). When I try to boot, I get the starting white screen, but then it shut down.
What should I do?
Message was edited by: mguillemette

I forgot to tell...
I tried to remove the battery, push the power button for 5 sec, and then restart, but without success.
After 15 minutes of "charging" (while the laptop is off), the led turns from yellow to green.
Message was edited by: mguillemette

[SOLVED] Brand new laptop, battery charges to 95% max (?)

I've seen this widely on a simple google search for "last full capacity",
the laptop has been used for just two days, but acpi reports:
koko@TravelMate ~ $ acpi -biatc
Battery 0: Charging, 100%, until charged
Battery 0: design capacity 4400 mAh, last full capacity 4182 mAh = 95%
Adapter 0: on-line
Cooling 0: x86_pkg_temp no state information available
Cooling 1: intel_powerclamp no state information available
Cooling 2: Processor 0 of 10
Cooling 3: Processor 0 of 10
Cooling 4: Processor 0 of 10
Cooling 5: Processor 0 of 10
it won't go higher than that.
Is that normal? maybe some sort of overcharge protection?
my previous netbook always charged to 100% or even a bit more than the design capacity...
Last edited by kokoko3k (2014-05-10 13:31:54)

emeres wrote:Depending on the technology used, one (or several) of the cells might be shorted or almost shorted. Another reason might be wrong measurement [circuit] from either battery or laptop side. And the simplest reason would be that the laptop/battery was produced some time ago, depending on type of technology used, certain batteries lose significant amount of capacity over time (even if unused). Since it is brand new, get in touch with your supplier and get at least the battery exchanged.
If you try to discharge it first, do fully discharge it using LEDs or some other low current load until voltage drops to approximately 10% of nominal voltage, and then recharge it not extending 110% of time it needed to be fully charged Repeating this cycle might and does help with certain types of batteries. If I were you, I would not bother however and go get a replacement from the shop, unless it is really troublesome.
As for overcharge protection, there are usually thermal (usually the most important one), shortcircuit and overcharge (meaning overvoltage protection) protections built into the battery (usually one ic) and/or laptop.
None of that is applicable for Lithium Polymer or Lithium Ion batteries. They should never drop below 3 volts. Discharging them below that point will destroy them and risk a fire. Charging Lithium based batteries is also non trivial and requires tight monitoring of voltage and controls on current and time. Do not mess with LiPoly or LiIon, they truly represent a serious safety hazard if they are mistreated. I note that your suggestions and descriptions of shorted cells are applicable to some non Li technologies; notably Nickle based batteries (Nickle Cadmium, Nickle Metal Hydride, etc...) In general, those are not found in modern laptops because of their toxicity and relatively low energy density as compared to LiPoly.
http://www.empirerc.com/liposafety.htm
http://www.rcpro.org/net/ThreadView.aspx?threadid=260
http://magazine.sfpe.org/content/lithiu … ry-hazards
http://www.datasheetdir.com/BQ29400+download
http://batteryuniversity.com/learn/arti … _batteries
http://www.batteryuniversity.com/learn/ … ith_li_ion
Last edited by ewaller (2014-05-09 03:00:19)

G500 battery dont charge upto 100 %

my lenovo g500 stops charging at 60 % ... help... how to remove such a battery protection.. however instead of protecting it make me demage the battery by using until the battery dies

Hi Vivek,
Welcome to Lenovo Community!
If you have installed the LEM (Lenovo Energy Management) in the computer, 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 for further queries.
Best Regards
Shiva Kumar
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Apple Batteries - iPad http://www.apple.com/batteries/ipad.html
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Tips About Charging for New iPad 3
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Prolong battery lifespan for iPad / iPad 2 / iPad 3: charging tips
http://thehowto.wikidot.com/prolong-battery-lifespan-for-ipad
 Cheers, Tom

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Nevermind.
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My brand new laptop battery doesnt charge upto 100%

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