Studio 1737 won't charge battery

I can still use the laptop as a desktop, but there are other problems. The backup/restore utility will not operate because it claims that I am on battery power and that I need to plug it into the power adapter. But the battery is dead and it is plugged in. Go figure.

The board needs to be replaced. The charging circuity is actually located in the battery, but everything goes through the power board. The DC socket is usually at fault, when solder connections fail because of stress on the socket. Best to replace the board and not try to fix it, although it is possible to repair them.

Thanks for the reply.

But it does work with the power adapter plugged in. Is it possible then that the new battery is unable to be re-charged because the battery is faulty? I just bought it from Batteries+ and it was fully charged when I installed it. It is dead now, though.

The problem may have been caused by a new adapter that was purchased with the new battery. The battery was drained at an abnormal rate. When I put a meter on the adapter it measured -19.6Vdc. The old adapter was +19.6Vdc. So I think that the -19V on the battery may have damaged the charging circuitry. Does this sound like a reasonable explanation?

The NU327 board is not very expensive, so I will replace it as well as get a new battery. I hope all goes well.

Are you sure it is the charging circuit? I have seen many responses to this same problem on the web, most of them are quite drastic, but this one worked for me

I have had this problem with two Dell computers, and Dell seems to be in denial that it is something that happens. If you know how Device Manager works, try this:

1. Click Start and type device in the search field, then select Device Manager.
2. Expand the Batteries category.
3. Under the Batteries category, right-click the Microsoft ACPI Compliant Control Method Battery listing, and select Uninstall . WARNING: Do not remove the Microsoft AC Adapter driver or any other ACPI compliant driver.

4. On the Device Manager taskbar, click Scan for hardware changes . Alternately, select Action > Scan for hardware changes.
OR just shut down and start up again

It worked for me. I have XP and have had read of people with VISTA and Windows 7 having the same problem. Be sure you uninstall only Microsoft ACPI Compliant Control Method Battery, not any other ACPI devices. 

I did this because my computer wasn't recognizing the battery. Now, it says it is charging, but never goes beyond 58% charged. I let it discharge a bit and it only goes up to that point. I've got Windows 7. I am totally frustrated at this point.

I hear ya!  FIrst my Studio 1735 said it didn't recognize the battery upon boot up and I had to hit F1 to bypass.  Then it says 'battery is plugged in, but not charging.'   So I bought a new Dell battery.  It worked only the very first time, once it was drained, it would never recharge and still made me hit F1 to bypass at boot up.  Then the power adapter was not recognized, so I had to buy a new one of those.   That at least worked, but the battery issue I can't fix, even with uninstalling it in device manager and having it reload.   Now I have all these new parts and a piece of junk laptop to go with it.   Not cool. 

Had Dell pc for 4 years before this happened. Now twice in a month.

Right-click the Microsoft ACPI Compliant Control Method Battery listing, and select Uninstall - worked both times.

Many thanks!