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-1
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0answers
16 views

Why does my dell latitude start immediately once connected to power?

When i plug the laptop it immediately turns on and starts running and my power button is not working why and what should i do to use my switch to power on and off?
0
votes
1answer
121 views

How can a power supply rated 7A be strong enough for two devices rated 5A? [closed]

I am not understanding something fundamental to amperage: Consider this adapter which outputs 12V 7A. It claims that several (eight, in this case) devices running at 12V 5A can draw enough power from ...
-1
votes
3answers
742 views

Laptop AC adapter stopped charging after changing the OS

I am facing a problem with my HP compaq 6710b I have a 90 watt battery adapter which was working fine(i have tested it in other laptops too) when I had Windows XP Professional installed in my Laptop. ...
1
vote
2answers
62 views

Buying a new laptop adapter: what specifications?

What specifications do I need to look after when buying a new laptop adapter? For example, on my adapter the following is written: INPUT: 100-240V ~ 2.15A 50-60 Hz OUTPUT: 19V -~-~ 6.3A
0
votes
0answers
144 views

Computer charger wire smoking

I have an Asus laptop. The battery died long ago and now always has to be plugged in to use. I use it all day everyday for a couple months, mainly from the same wall outlet, here in Bolivia. A ...
-1
votes
1answer
152 views

Incompatible adapter for Lenovo laptop [duplicate]

I ordered online for a Lenovo 65W AC adapter for Lenovo G550 laptop. My original adapter had specifications: 19V 3.42A (64.98W) While the one I got has specifications: 20V 3.25A (65W) I want to ...
3
votes
2answers
255 views

Keeping a laptop power supply on without a laptop connected - any negative consequences?

Sometimes I unplug my Thinkpad laptop from its AC/DC power supply adapter and keep the adapter connected to the power socket. Are there any possible negative consequences? Some ideas I was thinking ...
0
votes
1answer
1k views

5V power adapter for 12V router?

I just bought an used Linksys E4200 router (V1). On the back of the router it says 12V 2A, but the power adapter I got (model number AD 5V/2F) says 5V 2A. So the voltage is different. I tried it ...
3
votes
2answers
6k views

is that possible to use lower amperage ac adapter for my laptop? [duplicate]

I have Toshiba satellite l505 laptop and the ac-adapter is damaged. i found new adapter but it's output is 19v 3.4a and the output for the laptop is 19v 4.7a. is that safe to use the lower voltage?
0
votes
0answers
141 views

Laptop: Replaced/Tested all power components, still won't charge

I'm a computer technician, so please avoid the obvious diagnostic suggestions - info provided. I'm working on a Compaq Presario CQ40. Originally, the battery would not charge or run off ac adapter. ...
0
votes
0answers
138 views

How to test laptop adapter voltage with a Digital Voltage Detection Screwdriver Test Pen

Couple of days ago I replaced my laptop adapter, and when I use that, some amount of current discharges through the sockets,ports...etc (i.e. audio out). So I checked the adapter with a Test Pen (I ...
3
votes
2answers
254 views

Is it safe to use an American power adapter in India and Australia? [closed]

I'm going to India and Australia on a business trip in a couple of days and plan to carry only a tablet instead of my trustworthy laptop (which got dunked in the tub by my oldest - don't ask). The ...
7
votes
2answers
3k views

laptop motherboard “shorts” when connected to adapter

Disclaimer: I'm sort of a noob, and this is a long post. Thank you all in advance! summary: completely dead laptop with no signs of life whatsoever (suddenly, for no apparent reason) Here's the ...
0
votes
1answer
238 views

Laptop's power supply discharges the battery 10-20 seconds after unpluging from wall

Everyday after turning off the laptop (not before) I'm unplugging the power supply only from the wall, not from both wall and laptop. But it started to discharge the battery. After unplugging the ...
2
votes
0answers
312 views

Acer Aspire Laptop won't charge in Windows 7 Home Premium x64

I have an Acer Aspire 7750-6801 laptop running Windows 7 Home Premium 64 bit OS. The issue is that it will only charge sometimes when plugged in. I thought it might be a hardware issue, so I tried ...
0
votes
1answer
55 views

AC adapter buzz

Yesterday my laptop was connected to an unsecure power source, and today I'm hearing a weird buzz coming from the AC adapter. It seems to fluctuate depending on the CPU usage :) Is it something bad? ...
3
votes
1answer
2k views

Is it safe to use a laptop AC adapter with 220V power if the AC cable is not rated for 220V?

The AC adapter supplied with my laptop is designed to accept voltage in the range of 100-240VAC at 50-60Hz, but the AC cable that plugs into the adapter unit itself is only rated to 125VAC 7.5A 2.5A. ...
1
vote
3answers
5k views

Would this AC adapter work with this external HDD enclosure?

So I've lost the adapter that came with my external HDD enclosure, but I have a pile of AC adapters, most are under-powered. This one is the closest, but it seems like the enclosure needs a little ...
4
votes
6answers
12k views

Laptop touchpad response badly when on power supply?

I have HP pavilion 2200 series laptop with AMD processor, 1GB RAM, on board nvidia display card. It suddenly cause following problem: When the adapter is unplugged, the touchpad works correctly and ...
0
votes
1answer
540 views

charging laptop with a different adapter charger [duplicate]

Possible Duplicate: charging laptop with a different manufacturer's charger I have lost this adapter, Output Voltage: 19V Output Current: 3.95A Input Voltage: 100-240V Wattage : 75W ...
3
votes
1answer
131 views

Can I trust this weird BIOS Message ending in 'thanks'?

So I started up my laptop today and was greeted with the following message (not a direct quote): The type of the AC adapter cannot be determined. This may interfere with your computer's performance. ...
1
vote
4answers
4k views

Laptop charger disconnects and reconnects, charger or battery broken?

I've got an Acer Aspire One netbook (AOA-150) and there's obviously something wrong with it. The charging port gets VERY HOT and the charger seems to disconnect and reconnect quickly sometimes. This ...
0
votes
5answers
4k views

How does a laptop wattage compare to that of a desktop computer when their AC Adapters don't even list wattage? [closed]

I have several laptops of various brands. Each has an AC adapter that's designed for the specific computer it came with. I also know there are universal adapters can adjust their voltages ...
8
votes
1answer
4k views

Charge Apple computers bought in USA to use in Europe

I bought an Apple MacBook in the US and would like to use it in Italy. On the cable, it says: 2.5A 125V. What are the possible solutions to charge my computer? Use an adapter, a plug converter or an ...
2
votes
4answers
97 views

AC protection for laptop

I think there is something wrong at my apartment. Two weeks ago my girlfriend's AC adapter died and yesterday mine. Can I buy something to protect the AC adapters from whatever bad is coming from the ...
4
votes
3answers
145 views

Damaged laptop power plug?

Should I be worried about a damaged computer plug? My parents (or someone) knocked it over today. I notice it is no longer straight. There seems like a little tear in the rubber from the fall. I'm ...
1
vote
4answers
3k views

Is it OK to use 17“ Macbook Pro AC adapter on a 13” Macbook Pro?

17" Magsafe Adapter: Input: 100-240V - 1.5A 50-60Hz Output: 16.5-18.5V - - - 4.6A Max 13" Magsafe Adapter Input: 100-240V - 1.5A 50-60Hz Output: 16.5V - - - 3.65A The Answer: I am looking ...
1
vote
2answers
1k views

Will my new laptop AC power adapter work with my laptop, given these specs?

My laptop's AC adapter went out last night and I bought a replacement today, but will not be able to test it until tonight or tomorrow. My laptop is a Gateway P7801-U, but unfortunately Gateway does ...
3
votes
1answer
471 views

Is it safe to use a “Universal Laptop Adapter”?

I have seen a "Universal Laptop Adapter" sold in a computer shop before. I am thinking of getting one for a laptop. Is it safe to use? What differences are there between one of these and a typical ...
0
votes
4answers
12k views

How to test AC adapter?

I have a Toshiba laptop that is no longer receiving power when it's plugged in. How can I tell if problem is in the AC adapter or in the actual laptop? I could buy a replacement adapter (this is the ...
1
vote
1answer
2k views

What should I do about a 110v adapter that I plugged into a 220v socket?

I plugged a new 110v Belkin router into a 220v socket. It had an adapter so I'm assuming the router is fine and the adapter just blew its fuse. I live in the Philippines, where there isn't any service ...
0
votes
2answers
1k views

Laptop battery holds charge, but won't charge any more

Ok, I'm sure I will need to replace either my battery or my AC adapter, but would rather not buy one if the other is the problem. My problem is. I have a Sager laptop that gets quite a bit of use. ...
4
votes
1answer
700 views

Replacement AC adapter for my CR-48?

I managed to lose the AC adapter on my Google CR-48. Yeah, already, I know. I have a couple more places to check, but does anyone know where I could find a compatible AC adapter? 19.5v 2.0a is not ...
0
votes
2answers
1k views

How can I make KDE suspend my laptop when I unplug it while the lid is already closed?

In KDE, I have set my preferences so that if I unplug my laptop and then close the lid, it will go into sleep mode. However, if I close the lid first and then unplug it, it will not suspend. More ...