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    Yoga 13 battery strange behavior

    Discussion in 'Lenovo' started by anitje, Oct 17, 2014.

  1. anitje

    anitje Newbie

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    My Yoga 13 battery, now about 14 months old and just off warranty, suddenly started acting very strangely. It was fine until about 2 weeks ago, when whenever I would unplug it, it would die immediately and would not recharge. It works fine when plugged in, though the indicator light blinked orange and it did not show a battery charge. Prior to this I was getting good battery life. I figured I needed a new battery.

    Then suddenly, about a week ago, it looks like it recharged to 100% (going by the battery indicator). Now when I unplug it, it discharges normally to about 90% of normal within the first few minutes and then suddenly discharges to 6-7%, with a blinking orange indicator. This happens within a half hour or so of unplugging it.

    When I plug it back in, the battery indicator says that it is fully charged within only a few minutes of plugging it in.

    I generated a battery report via the command prompt, which I am including below. As you can see, when I unplugged it at 18:03 today (Oct 16), it had 100% charge with 47,730 mWh capacity. By 18:36 (33 minutes later) it was down to 7% and 3341 mWh capacity. The big drop happened all of a sudden- it was ok about 30 minutes after unplugging. I plugged it back in at 18:37 and when I checked it at 18:50, only 13 minutes later, it was back to 100% charged at 47,730 mWh capacity. This happens whenever I unplug the computer.

    This is bizarre. Does anybody have any insight?

    Do I need a new battery, or is it something else?

    And if I need a new battery, has anybody experience trying to replace it themselves? If so, please relate your experience. There is very little about this online.

    Thanks.
    anitje

    Battery report
    COMPUTER NAME IDEA-PC
    SYSTEM PRODUCT NAME LENOVO 20175
    BIOS 66CN48WW 09/07/2012
    OS BUILD 9200
    PLATFORM ROLE Mobile
    CONNECTED STANDBY Not supported
    REPORT TIME 2014-10-1618:52:27
    Installed batteries
    Information about each currently installed battery
    BATTERY 1
    NAME Mocca2
    MANUFACTURER Lenovo IdeaPad
    SERIAL NUMBER BAT20101001
    CHEMISTRY Li P
    DESIGN CAPACITY 49,280 mWh
    FULL CHARGE CAPACITY 47,730 mWh
    CYCLE COUNT -
    Recent usage
    Power states over the last 72 hours
    START TIME STATE SOURCE CAPACITY REMAINING
    2014-10-1318:55:00 Active AC 99 % 47,252 mWh
    20:29:55 Active Battery 99 % 47,252 mWh
    20:29:59 Active AC 99 % 47,252 mWh
    2014-10-1422:21:07 Active Battery 98 % 46,775 mWh
    22:32:19 Active AC 6 % 2,863 mWh
    2014-10-1500:16:11 Active Battery 100 % 47,730 mWh
    00:29:07 Active AC 94 % 44,866 mWh
    01:29:53 Suspended 100 % 47,730 mWh
    01:37:31 Active AC 100 % 47,730 mWh
    02:19:44 Suspended 100 % 47,730 mWh
    09:49:31 Active AC 100 % 47,730 mWh
    11:43:05 Suspended 100 % 47,730 mWh
    12:01:39 Active AC 100 % 47,730 mWh
    12:19:32 Suspended 100 % 47,730 mWh
    12:39:35 Active AC 100 % 47,730 mWh
    2014-10-1618:03:30 Active Battery 100 % 47,730 mWh
    18:36:47 Active AC 7 % 3,341 mWh
    18:37:19 Suspended 7 % 3,341 mWh
    18:37:58 Active AC 8 % 3,818 mWh
    18:50:00 Report generated AC 100 % 47,730 mWh
     
    anitje, Oct 17, 2014
    #1