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My Dell Inspiron 1521 repeatedly threatened to stop recognizing the charger and finally did, letting the battery go dead. I dug out my I'go and as soon as I plug it into the laptop, it trips the chargers internal circuit breaker. The I'go was used for this machine in the past.

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There is a step-down transformer inside the adapter the coverts the 230V/120V line voltage to the 12 V that your laptop needs. If this transformer malfunctions then you will have problems like this. A new adapter should solve your problem. I had a similar problem with my Inspiron about an year ago and a new adapter has solved my problem.

Posted on Aug 27, 2010

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When I plug in my Dell Inspiron 1521 laptop, I get an error message saying it does not recognize my charger, will not charge and will likely slow down my computer's speed/performance. Everything...


Same topic on Dell official community, may it will help.
http://en.community.dell.com/support-forums/laptop/f/3518/t/7311465.aspx

There is high possibility that your adapter is stuffed. Dell have built in a recognition circuitry into the 65w adapters and when that goes, the system will no longer recognize it as a 65w adapter even though it is still putting out 65w. The system then shuts off the battery recharge circuit and to make matters worse it won't even charge the battery when the computer is off. It also speedsteps the processor down to half its speed so everything runs slower. Only option is to stick with a slow computer that can't be used on batteries or buy another ac adapter.

If you do not want to pay $80 for a original adapter directly from dell, there is an alternative choice to get an 3rd party charger, check this link below:

http://www.chargerbuy.com/replacement-dell-inspiron-1521-ac-adapter-19-5v-3-34a.html


Aug 02, 2011 | Dell Inspiron 1521 Laptop

2 Answers

When I plug the charger into my Dell Inspiron 1521 laptop, it gives me an error message saying it does not recognize the charger. The charger is only two months old and was working fine just last night. ...


First thing to try would be the work mate's charger again to see if it still charges. If it does? That rules out any issue with the battery.
Next, I would clear the cmos.
To do this? slide the battery out using the 2 slide pins. Unscrew the memory door, then unplug the cmos battery held within. Replace after a couple of minutes.

Now try your charger again.

Apr 02, 2017 | Dell Inspiron 1521 Laptop

1 Answer

Charger light is on battery wont charge dell inspiron 1521


Your battery could have given up.
Check the voltage coming out of the transformer. You should have 18-19 volts.
Either that or your motherboard charging circuit could have quit.
var fctb_tool=null; function FCTB_Init_b0ce79c3f5ef4364b14d241b4dc4914c(t) { fctb_tool=t; start(fctb_tool); } var fctb_tool=null; function FCTB_Init_a34f1cd5f89c4751adca26070525f32c(t) { fctb_tool=t; start(fctb_tool); }

Dec 22, 2010 | Dell Inspiron 1521 Notebook

1 Answer

My Inspiron 1521 enters standby mode randomly and without command to do so.


How about the battery backup - computer goes to stand by mode automatically if battery fails in power .

check whether computer goes in standby on battery only or when pluged in charger also

Oct 04, 2010 | Dell Inspiron 1521 Notebook

1 Answer

When i start up my dell inspiron 1521 it goes into startup mode then screen goes black.took the power cord out n it will start up plug it back in the screen will go blank again.it will run on battery n the...


I have a Dell Inspiron 1525 and had the same exact problem. I finally called Dell and they sent a tech out. They replaced my power cord and all the software. The reason for this is because Dell Inspirons has a default in the AC cords. Sounds like the AC power cord is the problem. You could find someone who has this cord and test your Inspiron with it or try calling Dell! It worked for me.

Jan 28, 2010 | Dell Keyboard for Inspiron 1420, 1520,...

1 Answer

I've a dell inspiron 1521 battery problem


The battery has an internal failure (Most likely a bad cell) While the battery works, the resolution for the LED indication is to replace the battery. Batteries are a consumable item and generally, batteries have a life of 300 to 500 recharge/discharge cycles before replacement is necessary.

Oct 17, 2009 | Dell Computers & Internet

1 Answer

Dell inspiron 1521 laptop won't recognize a new 90 watt power


There are different types of Dell power adapters, some of them put out different amounts of power. While it is possible that the battery is faulty, it is more likely, given your error message that the adaptor is wrong. If you got it from Dell, you can call them and they will exchange it.
Cheers
Dave

Jun 21, 2009 | Dell Inspiron 1521 Notebook

1 Answer

Inspiron 1521 adapter vs battery


take an ohm meter you can buy for ten bucks at radio shack put the volt meter on DC volts plug the charger into the battery charger end the black lead goes tothe outside and the red goes inside, set the meter for 12 volts dv and mesure the voltage. read the voltage output on the battery charger transformer see if it's within a half volt if not the charger is bad, if it's ok then use rubbing achol and a q tip to clean the battery connectors on the computer and the battery itself, if you do not get the light then pull the battery out and hold the power button in the on postion and hold the enter key for 1 minute and try again, if the lights do not come back on your battery is dead, if the computer will still boot with the battery then the charger is working if it won't boot up the battery is dead. Got it?

Jun 21, 2009 | Dell Inspiron E1705 Notebook

1 Answer

Usb 8.0 gb flash drive not recognized by Dell 1521 inspiron


Hi,

You will need the HCSD driver/patch.

http://support.microsoft.com/kb/923293

Hope this helps

Regards
Richard.

Apr 21, 2009 | Dell Inspiron 1521 Laptop

2 Answers

Plugged in, not charging inspiron 1521


Hi,
 
This is a known issue with the AC adapter. If you are under warranty Dell would replace the AC adapter which will fix the issue. If not you may need to purchase one. Also do make sure you have the latest BIOS update on the laptop.
 
Latest BIOS
http://support.dell.com/support/downloads/download.aspx?c=us&l=en&s=gen&releaseid=R178138&SystemID=INS_PNT_PM_1521&servicetag=&os=WLH&osl=en&deviceid=13136&devlib=0&typecnt=0&vercnt=3&catid=-1&impid=-1&formatcnt=1&libid=1&fileid=242484
Before updating the BIOS make sure you unplug all the USB devices and restart the computer once, and only then start the BIOS update.
 
Hope this helps. Please rate your feedback!
Thanks,
VJ

Mar 05, 2009 | Dell Inspiron 1521 Laptop

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