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Can not turn on, no power current with or without battery!

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Test your PSU or replace it

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA and

the leads from your motherboard to your hard drive make sure they have a secure connection and are not faulty or just replace them there probably old and faulty

hope this helps

Posted on Oct 01, 2010


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Posted on Jan 02, 2017


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I have a mercury mountaineer 2002 awd 4.6litre that stalled without warning and now wont start, it also turns over like a low battery but had battery and alternator checked at two different places bo

Its a possibility but I would think the fuel pump? That's where I would start. If it turns but doesn't crank then your most likely not getting gas.

Jan 11, 2015 | 2002 Mercury Mountaineer

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I have loss of power and when fan is turned on the idle drops killing the engine. What could be the culprit?

This seems to be pointing toward the alternator. When the fan is running, this can take a chunk of available current from the power supply. If possible, check the voltage across the battery when the engine is running. It should be up around 13.8 volts but doe this when you only have the engine running and no radio, fan or anything else switched on. If that's low, possibly 12 or lower, then the alternator needs either the connections checking for corrosion, the belt that it runs off tightening or replacing.

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Sir when i power on the ups its horn

Hat product? Connected to? how is it connected?

Mar 26, 2014 | Computers & Internet

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If headlights are powered by a 12v battery and when on they have a 3.0a current what is the resistance of the current?

Hi Jonathan, I think you may have forgotten that when the head lights are on so too are the marker lights and the number plate lights. It would also be unusual to have those lights turned on without the engine running. In other words you need to know what other units are consuming power. Oms law will be how to work your problem out. Regards John

Dec 08, 2011 | Cars & Trucks

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77 Caddy Battery drains--alternator and battery have been tested and both are good

If the alternator and battery is tested and pass then you current draw that has to be known. Do you have a test light? youll have to put it in series to negative terminal to negative battery . if it light up there you start the hunt glove box light bulb trunk light bulb.and dash lights.didnt the 77 have power seats? they are popular for battery drain is it warm how about the passenger side why the seat well because they have power even without the key in ignition. Here is your find without test light , with the car sitting feel the power seat is it warm if it is there is your drain, if it isnt go to glove box is the bulb warm if it is there the short, if its not check the trunk where ever the draw is at it has to do with devices that turn on without the key being needed.

Apr 28, 2011 | Cadillac DeVille Cars & Trucks

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No Power with or without battery

The device requires current compartment observations. Ascertain that bateries in compartment, cables wires are traceable to the outs, and that visible malfunct objects are least are unavilable. Perform recharge on computer devices to restore battery cell capacity. Usually depleted current requires full recharges to last an entire duration with every feature powered off to attain process. After ascertaining the restroation capacities, usually the devcie should power on after charging else the battery requires replacement an aletrnate as depleted completely.

Feb 13, 2011 | Computers & Internet

1 Answer

It wont turn on or charge what and why??

Are you trying to charge it through the computer? If so try through a main charger! I had similar problem but found this on Sony website -

Battery is 100% discharged. Therefore, PC's USB with 5V/500mA set up has not enough power to start up the charging process because loading current is greater than the set up, therefore USB is disabled immediately due to sudden current load.
  1. Battery must not be discharged 100%
  2. If it happens then the supplied AC adaptor must be used firstly because it is providing 5V/800mA power. After a couple of minutes the unit can be connected to PC without problem then it can continue the charging during file transfer, etc.

Jul 15, 2010 | Sony Walkman NWZ-A828 Digital Media Player

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Cannot power up a nokia 3110 classic. full charged battery

nokia 3110 classic.on the time of update software USB Data cable have been disconnected. and that time mobile was automatically off And after its not starts.
Please solve my problem.

Oct 03, 2009 | Nokia 3110 Cellular Phone

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My laptop is not receiving any current when plugged.

I suppose you try replacing the power adaptor and if you find battery charging then there could be problem with the power adaptor

Dec 16, 2008 | Acer Aspire 5100-5022 Notebook

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Pioneer car stereo on home current

Please explain in more detail. You have a power INVERTER, from 12vDC to AC HOUSE CURRENT?

Or You have a CONVERTOR (aka Transformer) to CONVERT AC House current into 12v DC?
Your best option is to buy a battery charger, pull it in the backyard, and hook up the battery charger while you are listening. REMEMBER to use the ACCESSORY position on the key switch, to avoid possible damage to the cars ignition system! Leaving the Ignition coil charged (ON) for long periods of time without the engine running can cause it to overheat and possibly render itself useless.

Now you know what the ACC position is for on the automobile.


Jun 15, 2008 | Pioneer DEH-P4800MP CD Player

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