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LAPTOP CHARGING PROBLEM

HP CHARGER

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#1
Vinod Antony

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Hello

I have an HP Notebook 15 ac122tu

 

My laptop charges for a few seconds and then the charging stops. After another small interval, the charging starts again. This keeps happening. While the charging stops, the white led light is ON at the charging point. When the charging starts again it turns red.

 

 

 


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#2
phillpower2

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Hello Vinod Antony,

 

What you describe is normal as the LED should be red while charging and turn white when fully charged, please see my canned text below regarding notebook battery care;

 

Some but not all of the below is relevant to your question but the information may help others who read your topic looking for guidance themselves.

To prolong the life expectancy of a notebook battery it should be allowed to run out of charge once in a while and then be fully recharged again, this is sometimes called exercising the battery.

It is not a good idea to use a notebook with both the battery and AC adapter/charger in place as it will shorten the life of the battery, this because the battery becomes reliant on being fully charged all of the time and so when the AC adapter/charger is removed the battery will quickly lose it`s charge, not all batteries do have but what many older ones do have is a memory cell (EEPROM) which stores the charge amount/content rating and this is often what becomes affected by continuous charging from the AC adapter/charger, typical symptoms may include not charging at all and only charging to a certain percentage and no further.

To exercise a removable notebook battery you should charge the battery to 100% when you are not going to be using the notebook away from a wall socket power outlet for an extended period of time, turn off and remove the AC adapter/charger and the battery, store the battery in a safe place, reconnect and use the AC adapter to power the notebook while you have access to a mains power socket, every once in a while (1 to 2 months) remove the AC adapter, replace the battery, use the notebook until the battery charge is depleted, connect the AC adapter/charger, charge the battery up to 100% and then repeat the very same steps as above.

Notebook and Netbook users who`s computers have integrated batteries should follow any guidelines provided by the manufacturer regarding best power management and settings but would benefit from once in a while allowing the battery to become empty of all charge by following the above steps, then fully charging the battery back up to 100% and then reverting back to the recommended power management steps that the manufacturer has suggested, these steps may include charging the battery up to 100% and then removing the AC adapter/charger, using the computer until the battery charge depletion level reaches the pre-set minimum allowed, reconnect the AC adapter/charger and then fully charge the battery up to 100% again and repeat the process.

Please note that the above will not help with a battery that has been damaged by being continuously connected to mains power or has reached it`s maximum charge amount limit/life expectancy.

 

If your notebook battery will not fully charge it suggests that it may be damaged or has been charged the maximum amount of times and so you should not allow it to lose all charge until you have a suitable replacement battery, this because a damaged or naturally expired battery may not begin to charge at all.

Some further information regarding how to prolong the life of a Notebook etc battery which includes calibrating it http://batterycare.net/en/guide.html


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#3
Vinod Antony

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The White LED turns ON before it gets fully charged. Why does the charging occur in few second intervals and not at one go? 


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#4
phillpower2

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The White LED turns ON before it gets fully charged. 

 

 

What is telling you that the battery is not fully charged.

 

Why does the charging occur in few second intervals and not at one go? 

 

 

Depends on if the battery is actually fully charged or not, something is telling your charger that the battery is full, the charger stops charging the battery, the power begins to drain, the charger detects the drop and begins to charge the battery again.
 
Couple of questions for you;
 
Do you continually use the notebook with the battery in place and the charger turned on.
 
If you disconnect the charger and use only the battery to power the notebook how long does the charge in the battery last.
 
If you remove the battery and use the AC adapter to power the notebook, does the LED still change colour.

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#5
Vinod Antony

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I only use the laptop while it's charging if, I'm doing something important. Though I still leave the laptop ON even if I'm not using it. (I keep using my laptop till it's fully charged and only switch off the charger once it reaches 100%)

 

I suppose the power lasts for around 3 hours if I'm just using normal MS office software

 

I've not tried giving direct AC ... the voltage here isn't that stable .


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#6
phillpower2

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4.5 to 5hrs when new is the information that I can find for battery charge time, if you have had the computer for a while then this will naturally decrease and the longer that you leave the battery in and the charger on the quicker the battery will become weaker.

 

For testing purposes, remove the battery and use only the AC adapter to power the notebook for ten minutes or so, I suspect there is nothing wrong with either component and what you are seeing is as described in my reply #4, we will know better if the notebook runs ok on the mains power.


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#7
Vinod Antony

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The white light was on when I used the AC adapter.

 

I charged my laptop while it was off. The problem occurred then too. The red light would come, then the white light and back again red.

Is my battery damaged? I still have my warranty.

 

at 96%, the battery shows 2hrs and 39 min remaining .. i guess that's bad


Edited by Vinod Antony, 16 May 2016 - 09:23 PM.

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#8
phillpower2

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Everything appears to be working as it should and the battery charge time only reflecting the expected wear and tear caused by use.

 

As the computer is still covered by a warranty** it would do no harm to have it looked at, not sure how much time and trouble this will take and you may find that you will be offered the same explanation as here.

 

** How long have you had the computer is a telling point, if only a couple of months then the battery should last longer than 3hrs, this based on the fact that you have said that you do not have the AC adapter permanently active with the main power brick also in place.

 

Please let us know what happens if you do have it checked under warranty.


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#9
Vinod Antony

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Sure! I'll let you know, but I don't think it will be soon as I'll be busy in the coming few weeks.

 

Thank you for your time :)


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#10
phillpower2

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No worries when you are ready and thank you for the update  :thumbsup:

 

You are most welcome  :)


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