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Laptop Battery or Charger Problems


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#1 Guest_shamane55_*

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Posted 25 November 2015 - 09:30 AM

Hello,

 

I have an Asus N55SF running windows 7 for a few years now and recently my battery started dying instantly, so I got a replacement online. I believe straight away there were some issues, for instance it was stuck on certain percentages (for instance 49%) no matter what and took ages to calibrate. However eventually I got it working for a few days. It powered my laptop fine and was working (even when the percentages were stuck), but yesterday it once again got stuck, this time at fully charged 100%. I thought I would let the battery discharge and charge it overnight, so I waited it until my laptop died and set it to charge. However, today even though it was showing as fully charged, the laptop died within seconds after I unplugged it from the charger.

 

I downloaded BatteryCare and had HWMonitor already installed, but they are showing some weird numbers. BatteryCare shows the wear level as 0.00% and other things that HWMonitor is also showing, which seem to indicate they aren't getting the correct readings.

 

The HWMonitor log reads this:
Hardware monitor        Battery
    Voltage 0        9.31 Volts [0x245D] (Current Voltage)
    Capacity 0        48400 mWh [0xBD10] (Designed Capacity)
    Capacity 1        707245 mWh [0xACAAD] (Full Charge Capacity)
    Capacity 2        707245 mWh [0xACAAD] (Current Capacity)
    Level 0            n.a. [0x64] (Wear Level)
    Level 1            100 pc [0x63] (Charge Level)

 

I am wondering if this might be an issue caused by my charger or if it is the battery that is faulty? Should I return it and get a replacement? (Or even worse, is something wrong with my internal hardware on the laptop)?

 

Obviously this is all quite vague, but I can supply any other information. I have tried deleting drivers and reinstalling them, also tried turning everything off, unplugging everything and holding the power button for 30 seconds but neither worked.

 

Thanks for any help!

 



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#2 dc3

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Posted 25 November 2015 - 10:10 AM

If you have a voltmeter with a DC scale you can check the output of the power adapter to see if the problem is with it.

 

The output of the power adapter should be at 19V DC @ 4.74A.  The DC scale will show the voltage, but you would need a ampmeter to see what the amount of current is.

 

The output for the battery should be 10.8V.  I see that the voltage reading from the monitor is only 9.31V, this could be part of your problem.

 

Please post the make and model of the battery.


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#3 kaz20

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Posted 25 November 2015 - 10:21 AM

have you tried plugging in your charger without your battery in and seeing it the laptop turns on? 



#4 Guest_shamane55_*

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Posted 25 November 2015 - 10:41 AM

Thanks for the reply DC3. Sadly I don't have a voltmeter, but a few of my friends have laptops so I might try asking if I could use their chargers (if they are compatible) and see if they charge my battery or not.

Thanks kaz20, I have and it powers up fine without a battery and only with the charger. I do believe there can be cases where that happens and the battery isn't getting charged though, because something is wrong with the AC, but not too sure. I don't think it would be the charger, but at the same time it is a new battery and it worked fine for a few days....



#5 dc3

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Posted 25 November 2015 - 10:49 AM

Please answer my question regarding the battery.  There is a possibility that the battery you purchased to replace the old on may not be the correct battery for this laptop.


Family and loved ones will always be a priority in my daily life.  You never know when one will leave you.

 

 

 

 


#6 Guest_shamane55_*

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Posted 25 November 2015 - 11:18 AM

Oh right, sorry, missed that bit.

 

The battery I purchased is a Li-on 6 Cell,Voltage: 10.8V, Capacity: 5200mAh battery produced by LENOGE (though in the description it says Lithium Battery Voltage: 11.1 volts, not sure why it is different).

 

It can be found here: http://www.amazon.co.uk/gp/product/B00NTT1L98?psc=1&redirect=true&ref_=oh_aui_detailpage_o01_s00






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