Dell Latitude e6400 *battery plugged in, not charging*

Hello. I have recently been having problems with the battery for my laptop, so I replaced it with another battery made by Dell. My laptop refused to recognize it, until today when I got the error *plugged in and not charging*. This is a better start, but I can't seem to get the battery to charge, so I constantly have to have it plugged in. I have tried to update my bios, but the battery has to be at least 10% charged for that to happen. I have also tried uninstalling the Microsoft ACPI- Compliant Component Battery from device manager, and alas, no change. Any suggestions are welcome. Thanks in advance.

 

Are you getting any sort of "AC adapter not recognized" errors?

 

I am not, but the battery error is back to not recognizing it.

 

Check BIOS to see what it says. Make sure it is detecting the AC adapter wattage correctly. Also make sure both notebook and AC adapter have been reset. Disconnect both from power and each other for 2 to 3 min. Hold power button down on notebook for a few seconds to reset. AC adapter will reset on it's own after a few min.

Also try FN+F2 to make sure battery charging is enabled.

The last thing is to try another AC adapter, since you already swapped batteries. In some cases a bad AC adapter will power, but not charge. Usually you'll notice the adapter wattage won't show up in BIOS.

Unfortunately beyond all of that and once ruling out battery, AC adapter, and FN+F2, it's probably a bad MB.

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Yesterday, I noticed some Dell "automagic" update running on my system. Arg! I wish I knew what they were updating. I have to stop that. Anyway, afterward I noticed my battery was no longer charging.

So I dived in. Found something called "Dell Extended Battery Life" options and program. (click the battery icon in notification area). Lots of options. It seems there are two major options - Dell Battery Mode and System Battery Mode. I found Dell Battery Mode set. Going into the program I found the option set where the battery will NOT charge between 50% and 100% charge, WTH? There is an explanation as to why.

I played with settings and after a few minutes, the battery is charging.

In any case, I believe Dell Update is "playing" with my core software / drivers and settings, because this started right after and I don't believe in coincidences. . Dell Inspiron 17", born 10/1013, 64bit, Windows 8.1 update 1.

 

Just uninstall the Dell Update s/w if you don't want it running. Or turn off auto updates. It's all in the Dell utility settings.

It's not good for lithium ion batteries to remain fully charged (or dead) all of the time. Reduces the life. Since many notebooks stay connected to AC nearly 100% of the time, Dell added a feature to vary the charge, which will extend battery life.

You can easily turn it off temporarily or permanently if you'd like. Should be in BIOS and the Dell client.

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