Question about Acer Aspire 4720 Notebook

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Battery doesn`t charge.

My AC charger is no longer loading into the battery. The charging light does not go in when I connect the charger.

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The socket contacts have opened up and the plug is not making contact.with a fine flat screwdriver close up the socket contacts

Posted on Jul 09, 2010

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Acer aspire 5332 plugged in but not charging


it sounds like one of three things:

1. Battery itself no longer functions
2. Laptop Charger has inadequate amperage
3. The motherboard is defective (most likely).

If you have another battery, or a friend with the same battery, you can try that first (and someone else's laptop charger).

Take the battery out. Unplug the charger from the computer. Press the On button for 30 seconds. Then plug the charger in. If it works, then put the battery back in and you're in business again.If it doesn't work, the most likely cause is the laptop charger. Use a new one to confirm:
Replacement Acer Aspire 5332 AC Adapter 65Watt 19V 3.42A

Oct 23, 2012 | Acer Aspire 5241 5251 5332 5334 5338 5516...

1 Answer

Battery will not charge


There are only three likely solutions.

1. The charge port on your phone is broken (Most likely)
2. The battery has reached a thermal cutoff and will no longer accept a charge.
3. The charger cable is bad.

If you can try another battery or put that battery into another phone you can isolate that problem. If you can charge something else with your charger then your charger workers.

If that still doesn't work then plug the charger into your phone and lightly press on the charger. If your phone springs to life it means the charge port is likely suffering from a poor connection. If this is the case then sadly there is nothing you can do unless you're very good at soldering.

Jul 24, 2012 | Cell Phones

1 Answer

Can i charge battery via USB connection or do i need the charger?


The USB cable port doesn't provide charging for the Li-Ion battery. You need to pull the battery and charge it in an AC charger.

Mar 03, 2012 | FUJIFILM FinePix XP20 / XP22 Digital...

1 Answer

Hello, Leoch 12V battery, DJW12-12Ah, is no longer charging. We bought a John Deere riding toy at a local Toys R Us in Michigan three years ago. My children have only used it for two summers and is...


Sounds like a battery problem.
Lead acid batteries should to be charged every 3 or 4 months even if they are not being used, or they can slowly self-discharge and will start to deteriorate if the voltage drops below about 12.2v (for a 12v batt.)
They can then be difficult or impossible to charge. The charger can see this as fully charged and show green.
You can test for this if you have a voltmeter. You should be able to work out if it's the battery or a connection (or the charger).
Measure the battery voltage (use a DC voltage range greater than 12V). The normal voltages you should see:
A) Key off, no charger: >12v, <14
B) Key off, charger connected: >12, <14.2, but higher than A)
C) Key on, no charger: >12, <14, but lower than A)

If voltage A) is low and immediately goes high when the charger is connected then the battery needs replacing.
If A) and B) are exactly the same then it could be the charger is not connecting or is faulty. Measure the charger output, should be >13.8v (unless it's an "intelligent" charger in which case it might need some voltage applied to its output before it starts charging).

Note: If A) and B) are low, say <8v it's possible that an "intelligent" charger will refuse to start charging. In this case it's probably worth jumping the battery to a good 12v battery (e.g. car). Be very careful to connect the batteries (+) to (+) and (-) to (-). Leave connected for 10 - 20min or even overnight and then disconnect jumper leads and check A) and B) again. Sometimes a battery can be recovered by this method (it's unlikely to regain full capacity though).

Jul 19, 2017 | Lee-t.com Facebook Apps

1 Answer

My Dell Laptop syas that my battery is charged. But when I remove the ac power cord the computer immediately shuts down.


Hi there,

I repair laptops professionally and work on many Dells. Here are the possibilities.

1. The plugin connection where the battery meets the charging contacts in its bay where it seats are malfucntioning and the software is reading it incorrectly. To see if this is so, push the small round black button on the battery next to the 5 little dots at one end. If none of those dots light up green, the battery has no charge and the connection I spoke of above is damaged or malfunctioning beyond where you can see. If all the dots light up green, the battery is likely fine but the laptop can;t connect to its charge at the plugin.

2. The basic software (BIOS) is reading the charger/adapter incorrectly and although saying it is charging or charged, the actual charger is ruined inside in the compartment for charging the battery. Dell chargers can actually be incapable of charging the battery but still run the computer on direct current while plugged in.

3. The battery is no longer able to be charged, but is giving a false reading.

4. The DC Power Jack (into which you plug the charger) is only partially damaged and while able to power the laptop directky, cannot charge the battery. (Check to see if it is loose and woobly when you plug in the charger.

The easiest and least expensive way to troubleshoot and fix this yourself is to start with the charger. They can be had on eBay for about $20. Keep in mind that if no green lights show up on the battery, it might be your first choice and it's about the same price.

I hope I've given you enough info the help you determine your true problem.

Regards,

The Selkie

Aug 29, 2010 | Dell Inspiron 6000 Notebook

1 Answer

A35 s1592 battery won;t charge


You probably have a problem with your power adapter. Since you mentioned that the battery discharges when connected to the adapter, it means that the charger is acting as a load instead of the other way around. This is a typical behavior of a defective charger.

Try to check the output of your adaptor using any voltmeter. The voltage reading should be approximately close to the voltage rating as printed at the back of your laptop. If not, then its wiser to buy a new ac adapter instead of sending it for repair to electronic shops. Most of these chargers are no longer reliable when repaired, and might cause more problem to the laptop instead.


Nov 09, 2008 | Toshiba Satellite A35-S1592 Notebook

1 Answer

Will not charge or turn on using USB cable.


Two things.

HTC phones will not charge from the USB port unless you have ActiveSync on an XP or Mobile Device Manager on a Vista PC loaded.

Second, if the phone has been stored for a very long time, 1 year if initially charged, 1/2 year if not, the the battery self discharges to a point the USB port PC Sync software doesn't know the phone is connected. You must jump start a charge on the battery by either and HTC AC charger, a generic AC/USB charger will not work, or you can apply a +5 VDC voltage to the power terminal, marked + and - on the battery case, on the two outside terminals I believe. This 5VDC must be current limited for safety. The Red and Black lead inside a standard USB cable will supply current limited +5 volts at 100MA. Chop off a standard USB cable, their cheap and break out expose the Red and Black leads. While connected to the PC USB port, hold the Red lead to the + battery terminal and the Black to the (-), or other outside terminal, of about 30 seconds to a minute.

Now when you plug the phone to the PC with a good USB, the Amber light on the phone to indicate Charging, may not come on for a while, 5 minutes or so, but it will eventually. If it does not, jump the battery again for a longer period of time.

An AC charger for the 3125 are fairly inexpensive. $7 or so, on ebay with shipping. This may be the way to go. Consider getting one with a new battery. They are sold this way sometimes and sometimes for little more that the charger alone.


Oct 19, 2008 | AT&T Cingular 3125 Smartphone

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