Laptop only charging to 99%

[AshE1]

Since last week my laptop has been charging only upto 99% no matter how long i charge it for. I have already tried uninstalling the ACPI battery and restarting the laptop but that did not work. I have also tried the method where i unplugged the AC adapter, turned off the laptop, pressed and held the power button for 15 seconds, plugged it back in and turned on the laptop but my charge charged to a full 100% only the first time after i did that. Now its still only charging 99%. It has only been a year since i bought my laptop so there is no damage to the laptop or the charger. What do i do?

[Dragon-Fur · Accepted solution]

@AshE1 

In almost every single case of a battery that is a year old that still manages to stay working and even charges to 99%:

Do nothing.

Worry Not.

Normal "wear and tear" and the way in which the technology works mean that over time the battery will no longer charge to 100%.

Things that are the Battery

Information / Tests

HP Community thread on the subject

Accepted Solution - Battery won't Charge or Battery won't Hold a Charge

Article that explains Smart Battery Technology  

Battery use and care, how batteries perform over time, and expected battery life

How to: Understanding Lithium-Ion and Smart Battery Technology

Battery having trouble?

• If the “not charging” issue is (only) apparent when the system is running hot (or near that point), the battery and charge system are likely overheated as well – the charge system will resume operation when the computer cools down. Short Version:  An overheated battery / computer / charging-system will not charge the battery – this is normal behavior.
• The battery might be OK and just need calibration (balance / set).

The steps to check / calibrate / replace the battery are included in this document:

HP Notebook PCs - HP Battery Alert Appears Before Windows Starts

And / Or

Document includes information and link for testing the hardware using HP PC Hardware Diagnostics (UEFI) (preferred method) and / or using the HP Support Assistant to test the battery.

>>>  Testing and Calibrating the Battery (Windows 10)    <<<

Tips for extending / improving battery service

Microsoft - Battery saving tips

HP Notebook PCs - Improving Battery Performance (Windows)

Documents and Reference

This document is for HP notebook PCs that have a removable battery.

HP Notebook PCs - Battery Does Not Power Notebook or Hold a Charge

If the adapter fails it will not power the notebook.

HP Notebook PCs - Using and Testing the AC Power Adapter

Run Component Tests

Contributed by  Wes_notebooks 

Testing for Hardware Failures

HP Document

HP PCs and Tablets - About UEFI and the Startup Menu

Recalls and Advisories

Be sure to check your computer’s Website Support for relevant advisories and bulletins

The battery might be on a Recall list - devices / components eligible for Recall replacement are not subject to warranty status.

Information

 HP Replacement programs and product recalls

 Battery Safety Mode

"Fat" Battery / Swollen Battery

HP EliteBook/ProBook/Zbook Workstations - Notebook PCs - Swelling or Deformation of Notebook Battery

Purchase Options

1. If you determine that you need to purchase a battery, AC adapter, or power cord for your computer, check for the part(s) in HP PartSurfer.

1. If / When you know the battery type / part number, you may check for the battery at the Parts Store
2. If the part is not available from HP, use your search engine to find – and purchase - the part in your region.

Find your Product

See:  HP Notebook PCs - How Do I Find My Model Number or Product Number?

OR

• Open Support Home
• Enter the full model name
• When the website opens, select category Product Information
• Look for the Specifications for your computer
• The Product number may be listed in the Specifications document

Find your computer Serial Number

See: HP PCs, Printers - Finding the Serial Number

Find your part number

The part number you seek may be in the Maintenance and Service Guide

• Open Support Home
• Enter the full model name
• When the website opens, select category User Guides
• Look for the Maintenance and Service guide for your computer
• The part numbers are listed in the component section (wording varies)

Check for parts at the PartSurfer Website

Open PartSurfer

• Select your Country
• Enter the device Product Number, Serial Number, or Part Number in the Quick Search box
• HINT: To see a system-specific list, replace the Product Number with your device Serial Number
• Items accompanied by a tiny box in the Add-to-Cart column are available for purchase

NOTE >> Parts marked as "n/a" are not available from HP.

Parts marked as available for purchase might be available from:  HP Parts Store

OR

If HP does not provide the part for retail purchase,

Use your search engine to find the part number at your favorite online store.

Still need help?  Want more information?  Search for solutions...

Reference and Resources – Places to find (more) help and learn about your Device

Device Homepage

NOTE:  Content depends on device type

Drivers / Software and BIOS, How-to Videos, Bulletins/Notices, How-to Documents, Troubleshooting, Manuals, Product Information, more

HP Notebook - 14-bp101nx

Thank you for participating in the HP Community Forum.

We are a world community of HP enthusiasts dedicated to supporting HP technology.

Click Thumbs Up on a post to say Thank You!

Answered? Click post "Accept as Solution" to help others find it.

[AshE1]

@Dragon-Fur

So do i unplug it after it reaches 99? I read on a website that not fully charging the battery is bad for it. 

[Dragon-Fur]

@AshE1 

You have to judge whether what you read on the Internet is true, partly true, based on fact - or based on someone's opinion presented as the truth.

My opinion - based on personal experience and research:

Leaving the computer connected to AC power reduces the number of times the battery needs to be recharged (charge cycles), which in turn, might result in a battery that lasts longer than it might with constant charging / draining / charging.

A battery that is fully charged - or as close to "full" as is possible for the battery - does not, in itself, damage the battery nor does it damage the charge system or the computer.

Yes, I realize this "may do this and may do that" answer may send you back to the Internet still searching for information on whether to unplug the power and / or charge to full capacity.   I lack the full expertise in this area that might be necessary to quickly convince you one way or the other.

Happy Computing.

Thank you for participating in the HP Community Forum.

We are a world community of HP enthusiasts dedicated to supporting HP technology.

Click Thumbs Up on a post to say Thank You!

Answered? Click post "Accept as Solution" to help others find it.

[AshE1]

Okay thanks alot my mind’s at ease now 

[AshE1]

@Dragon-Fur

so i updated my bios and now my laptop is only charging to 79%

please help

[Dragon-Fur]

@AshE1 

Over time batteries lose the ability to charge completely (to original capacity).

Battery might last for as long as the intended time (for consumer notebooks, perhaps a year), the battery might fail at any time, or the battery might last longer than the initial expectation. 

 Influencing factors that affect battery life vary, including (and not limited to): 

• Battery type and initial Quality (All batteries are not made "equal")
• Number of cycles (that the battery is charged / discharged)
• Heat - The computer is always run in warm conditions (hot rooms, outside in warm climates, for example).  The battery will not charge when the computer is running hot.  There would be no point in adding extra heat to an already hot computer (and it could damage the components).

I cannot comment on whether (if) the BIOS update changed the status of the battery - the new charge level may be due to something now being measured in a different way, the battery may be starting to fail, the update may have in some way impacted the results ... or something else may be going on.  This is not a area in which I have a high level of expertise and speculating is (therefore) useless.

If you can do so, consider replacing the battery.

79% is not critical, though, things can change quickly.  That just means that the battery may (at some point) require replacement due to it having failed.

I have pretty much exhausted the very little I know about this subject.  

If I do come across something else of interest, I will post back.

Thank you for participating in the HP Community Forum.

We are a world community of HP enthusiasts dedicated to supporting HP technology.

Click Thumbs Up on a post to say Thank You!

Answered? Click post "Accept as Solution" to help others find it.