tsblagden
1 Copper

RE: PC not recognizing AC adapter although it is working well.

I ended up getting an aftermarket 130w charger for my Dell Precision M6300.  I'm experiencing the not charging the battery phenomenon.  I also purchased a replacement battery.

This does seem to be mostly related to the BIOS checking for something Dell specific in the charger, not about electronics.  Its really an outrage.  

Is there a workaround to enable the battery to charge?  Any change in the BIOS that would work?  This is a 5 year old machine and I'm trying to keep it alive without a huge investment.

0 Kudos
dslomer64
1 Nickel

RE: PC not recognizing AC adapter although it is working well.

I finally have decided that, at least in my situation, there's nothing in BIOS and nothing that safe mode can do to cause or solve the problem. Nor can any Windows after-hours interrrupted upgrade cause the no-adapter problem. Those were red herrings--mere coincidences--I now believe. 

I believe that the problem is the very bad design of the adapter port and adapter cord connection to the laptop. There's far too much play when the adapter is plugged into the laptop. I imagine that this play lets the internal mount that the pin is attached to flex, interrupting recognition of the adapter, eventually resulting in a break internally and need for new motherboard or luck at soldering. 

I've been lucky, I guess. I still haven't flexed the pin enough to break the connection. I've had the "no adapter" message a few times since my profane ( <ADMIN NOTE: Substitute character removed as per TOU>) posting in January. The only fix for each instance: unplug and replug the connector--without wiggling. One time, it took a lot of unplugging and replugging. Hey, I'm backed up securely. Let it fail.

One thing I've done to try to help: attach velcro to the side, top, and back of the laptop and then attach the velcro strip on the power cord to whichever one of those will most likely prevent disconnection if the laptop's on my lap and I shift a little bit. 

It's still an outrage, though, since the situation has been going on for many years. And I will state again: this began a week after receiving the laptop and Dell wanted to replace the mobo with a refurbished one instead of sending a new one. An outrage.

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spinoza33
1 Copper

RE: PC not recognizing AC adapter although it is working well.

I have the same problem with an Inspiron 14r 5421. The battery Info says "Unknown". Two weeks ago I received the message and I updated the BIOS. It worked. But now I have the problem again. PLease help me! Thanks!

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dslomer64
1 Nickel

RE: PC not recognizing AC adapter although it is working well.

A few days ago, I sat next to a girl at Barnes and Noble who had an Inspiron N7110 that was a year younger than mine (2010). She reports same problems. What always works for me (so far) is to go into setup (f2) and unplug the adapter and plug it back in (repeat as needed) until bios recognizes it.

I’ve been told that it’s hardware related and that sooner or later a soldering iron (or possibly a tire iron) may be necessary. So far so good. 

It stinks hat Dell won’t do better. This has really soured me. I’ve bought nothing but Dell for almost 20 years, but I might not buy another.

Dave Slomer

P.S. However, I’ve dropped mine from two plus feet onto hard surfaces twice now and I get to drop it a third time, so … bad with good? I merely slammed lid (and not overly angrily; just a little) on a school-provided Acer and it died.

0 Kudos
spinoza33
1 Copper

RE: PC not recognizing AC adapter although it is working well.

I tried what you said but still, BIOS does not recognizes AC adapter so the battery is not charging. This is a new laptop and the time I wasted in trying to find a solution is priceless. Dell techs, give me please a solution !

0 Kudos
Helladamnleet
1 Copper

RE: PC not recognizing AC adapter although it is working well.

Dear,

    As you would have noted had you bothered to even read the thread, is that the laptop warns the OP before windows even starts, so there is 0 (see: none whatsover{See: Completely impossible[see: It's not windows you moron]}) chance of it being a driver related issue. FURTHERMORE, DELL doesn't roll out updates. The fact that you need to leave your battery at 10% tell us all that it's quite obviously your BATTERY that's messed up, not the computer. The fact your laptop won't stay RUNNING WHILE PLUGGED IN tells the rest of us that aren't complete idiots that there is something ACTUALLY WRONG WITH YOUR LAPTOP.

NOBODY LISTEN TO THIS IDIOT, HE DOESN'T KNOW WHAT HE'S TALKING ABOUT. ACTUALLY FIGURE OUT WHAT'S WRONG WITH YOUR HARDWARE, DON'T JUST ASSUME IT'S SOFTWARE RELATED BECAUSE YOU CAN SOMETIMES GET IT TO CHARGE.

0 Kudos
jafes
1 Copper

RE: PC not recognizing AC adapter although it is working well.

I am in a similar situation with the PC not recognising the 65W adapter. I even purchased a new adapter. to no avail. I have downloaded N5110 bios updates but cannot install  as the battery is only 3% - I need 10%.

How do I charge the battery to 10%?

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Highlighted
dslomer64
1 Nickel

RE: PC not recognizing AC adapter although it is working well.

FIrst, I wish I knew what to tell jafes and everybody else. But I doubt a BIOS update will solve anybody's problem. It didn't solve mine. Nor did a new battery, which I finally had to buy. Now I have a new intermittent problem: Plugged in, not charging. Happens once every week or so. Powering down and removing AC adapter usually fixes it. 

So in BOTH of MY situations wiggling/reinsering the AC adapter plug seems to be my four-years-running successful solution. That does seem to indicate that the problem is in the motherboard, as suggested in many other threads. I don't know if I've ever seen a thread in which replacing the AC adapter or upgrading BIOS solved the problem. 

But a new motherboard? Guess what? If it's from Dell, THERE'S NO GUARANTEE IT'S GONNA WORK FOR LONG EITHER. My week-old laptop presented this problem, that's how long one might last before this common problem rears its head. (I am SO thankful to be lucky enough that it's just a huge pain that goes away within a few (or more) minutes of anxious fiddling.)

One thread somewhere advised taking a soldering iron to the motherboard. Good luck with that. 

Good luck, whatever.

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spinoza33
1 Copper

RE: PC not recognizing AC adapter although it is working well.

Hi, I had problems with my AC Adaptor 65w for a Dell Inspiron 5421, battery is not charging. So I changed the ac adaptor with an old one of 85w. It works and battery charges but suddenly the computer shuts down, is randomly, I don't know what to do. I just bought a new ac adaptor of 90w. Thanks for your help!

0 Kudos
vptact
1 Copper

RE: PC not recognizing AC adapter although it is working well.

My Dell inspiron 5010 has also stopped charging the battery; ac adaptor works and when i click F2 adapter is showing as 'unknown'; how can I change this in Bios?

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