98% Plugged in, not charging.

Rathman

New Member
Battery is 100% charged, After 2 days in ac power it shows 98%, plugged not charging. Then if I use the battery for a while less than 95% and if i plugged it in ac power, it starts charging and become 100%, fully charged. After two days it show 98%, plugged not charging.
So it is charging, but not holding the charge for some days. Battery replaced with a new one. Laptop is still under waranty.
I am getting 2 hour 20 minutes battery backup.
Would like to know is it a hardware or vista problem?
Thanx in adv.
 

My Computer

Battery is 100% charged, After 2 days in ac power it shows 98%, plugged not charging. Then if I use the battery for a while less than 95% and if i plugged it in ac power, it starts charging and become 100%, fully charged. After two days it show 98%, plugged not charging.
So it is charging, but not holding the charge for some days. Battery replaced with a new one. Laptop is still under waranty.
I am getting 2 hour 20 minutes battery backup.
Would like to know is it a hardware or vista problem?
Thanx in adv.

That happens for me too very often =).
That isn`t a issue, if it isn`t charging is because it already charged and now he is holding. For me it stays always at 99% charged, not charging.
 

My Computer

System One

  • Manufacturer/Model
    Asus G2s
    CPU
    2.20 GHz Core 2 Duo T7500 :\Santa Rosa/:
    Memory
    1x 2GB DDR2 Kingston ; 1x 1GB DDR2 Kingston
    Graphics Card(s)
    Nvidia GEFORCE 8600M GT 256mb Dedicated, 768mb RAM
    Sound Card
    Realtek High Definition Audio
    Monitor(s) Displays
    17" Generic PnP
    Screen Resolution
    1440x1280
    Hard Drives
    300 GB Fujitsu MHX2300BT 4200 RPM
    Keyboard
    Asus G2s Keyboard from Logitech
    Mouse
    ALPS Pointing Device ; Logitech Asus G2 Mouse
    Internet Speed
    2 MB Wireless Network
Looks like nothing to be too concerned with depends on the technology used in the battery. The battery indicator is after all an estimate made by the software (Vista) In other battery applications (e.g.. Cell Phones ) you will quite often see instructions such as "charge the battery until it shows full or 100% then continue charging for .... hours ), so that would suggest that the battery could be charged to over 100%.

Also the laptop is taking a small charge even when shut down to run the real-time clock etc.

If you really wish to check the retention capabilities of the battery you need to check output voltage , store the battery in controlled conditions for a period of time then retest,. even under ideal conditions there would be some loss.

of course if you see a sudden deterioration of the battery's charge retention then that would probably indicate a failing battery.

hope this helps
 

My Computers

System One System Two

  • Operating System
    Windows 10 Pro x64 Latest Release Preview
    Monitor(s) Displays
    Acer G276HL 27", (DVi) + Samsung 39" HDTV (HDMI)
    Screen Resolution
    2 x 1920x1080 @50Hz
  • Manufacturer/Model
    Real World Computers (Custom by Me)
    CPU
    AMD FX8350 Vishera 8 Core @4GHz
    Motherboard
    Asus M5A78L-M USB3
    Memory
    32GB [4x8GB] DDR3 1600 MHz
    Graphics card(s)
    Asus nVidia GTX750TI-OC-2GD5 (2GB DDR5)
    Sound Card
    ASUS Xoner DG + SPDIF to 5.1 System + HDMI
    Monitor(s) Displays
    Samsung 32" TV
    Screen Resolution
    1920 x 1080
    Hard Drives
    Internal
    Crucial CT256MX100SSD1 256GB SSD,
    Seagate ST2000DM001-1CH1 2TB,

    External (USB3)
    Seagate Backup+ Hub BK SCSI Disk 8TB
    2.5/3.5 Hot Swap Cradle, USB3 + eSata (client HDDs)
    NAS 4TB
    PSU
    Aerocool Templarius Imperator 750W 80+ Silver
    Case
    AeroCool X-Warrior Red Devil Tower
    Cooling
    Hyper103 CPU, Rear 120mm, Front 2x120mm, Side 2x120mm
    Internet Speed
    68 MB Down 18.5 MB Up
    Other Info
    Six Sensor Auto / Manual Digital cooling (Fan) control with Touch control Panel
Given for Acer Service Centre. They checked this laptop with new main board and battery, but no change. According to them this is not a problem beacuse battery meter showing a diffrent figure actually it is 100%.

Don't know, what they are telling is 100% correct!!!!!!!!
 

My Computer

Seems odd that it doesnt charge the battery if it detects 98% charge. *If* it is a hardware problem it could be your powersupply.

I suppose it could be a way to not wear out the battery so fast too. If you keep your laptop on AC for days at a time, I suggest you remove the battery once it's fully charged and put it in your fridge. It'll make the battery last longer.
 

My Computer

System One

  • Manufacturer/Model
    Home made
    CPU
    AMD Athlon X2 6000+
    Motherboard
    ASRock ALiveXfire-eSATA2
    Memory
    2x2GiB DDR2 PC2-6400
    Graphics Card(s)
    GeCube ATI Radeon HD3870 512MiB GDDR4
    Sound Card
    Built in HD Audio, digital output
    Monitor(s) Displays
    Samsung SyncMaster 206BW, SyncMaster 940B
    Screen Resolution
    1680x1050 + 1280x1024
    Hard Drives
    WDC 250GB SATA + lots of externals. :)
    PSU
    Antec Earthwatts 500W
    Case
    Antec Sonata III
    Cooling
    Air
    Keyboard
    Logitech G15 (1st edition w blue lightning)
    Mouse
    Logitech G9
    Internet Speed
    DL/UL: 50/10Mbit
The same thing happens to me all the time. It goes to 100% and then some time later it shows 98% even though it has been plugged in the whole time.

Nothing really to worry about.
 

My Computer

System One

  • Manufacturer/Model
    Gateway
    CPU
    Intel Pentium 2 Core Duo 2GHZ
    Memory
    4 GB
    Graphics Card(s)
    ATI Radeon Mobile X1400
    Hard Drives
    WD 500GB
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