-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Notebooks
- Notebook Hardware and Upgrade Questions
- Re: Can I keep my laptop with built-in battery connected to...

Create an account on the HP Community to personalize your profile and ask a question
05-06-2018 02:27 PM
Hello!
Please, help me to find a really competible and correct information.
Can I keep my laptop with built-in battery connected to the mains power supply?
How should I use it properly, if most time I am working at home?
If I keep laptop with built-in battery connected to the mains power supply while working, and it is "working not from battary", should I keep it in the mains power supply after I switch it off and go out?
Thanks, sorry for stupid at first sight question, but I want to keep my battery alive as long as it possible.
Really appreciate.
Solved! Go to Solution.
Accepted Solutions
05-06-2018 02:42 PM - edited 05-06-2018 02:42 PM
This is the HP tutorial on battery life.
https://support.hp.com/us-en/document/c01297640
I will say generally that it is understandable but people do think too much about this topic. Modern Lithium ion batteries are smart and are able to handle charge and discharge. They cut off power to the battery when it is fully charged.
The one thing to avoid is letting the battery drop below 15-20% charge. Try to hook it up and charge it before it drops lower than that.
I have an HP Notebook; a Zbook 15 G3 which never leaves my desk. It is for all purposes a desktop. I keep it plugged in all the time. The only time I take it off AC power is to configure software or update the BIOS every now and then. The adapter it is hooked to is a Thunderbolt dock and best not to flash BIOS through a dock.
It is now over 2 years old and the battery is still showing about 95% of original capacity. In other words having it hooked up all the time to AC power has not hurt the battery.
You can leave it plugged in. Some will disagree and I have no strong feelings. I will say this. If the laptop is turned off, you can unhook it but a lot of times batteries will lose power even when the laptop is turned off. If you unplug it and leave it sit for a few days and charge level drops below 95% you will register another cycle when you plug it back in and charge it. All else equal you want to register as few cycles as possible.
Post back with any further questions but please accept as solution if this is the answer you needed.
05-06-2018 02:42 PM - edited 05-06-2018 02:42 PM
This is the HP tutorial on battery life.
https://support.hp.com/us-en/document/c01297640
I will say generally that it is understandable but people do think too much about this topic. Modern Lithium ion batteries are smart and are able to handle charge and discharge. They cut off power to the battery when it is fully charged.
The one thing to avoid is letting the battery drop below 15-20% charge. Try to hook it up and charge it before it drops lower than that.
I have an HP Notebook; a Zbook 15 G3 which never leaves my desk. It is for all purposes a desktop. I keep it plugged in all the time. The only time I take it off AC power is to configure software or update the BIOS every now and then. The adapter it is hooked to is a Thunderbolt dock and best not to flash BIOS through a dock.
It is now over 2 years old and the battery is still showing about 95% of original capacity. In other words having it hooked up all the time to AC power has not hurt the battery.
You can leave it plugged in. Some will disagree and I have no strong feelings. I will say this. If the laptop is turned off, you can unhook it but a lot of times batteries will lose power even when the laptop is turned off. If you unplug it and leave it sit for a few days and charge level drops below 95% you will register another cycle when you plug it back in and charge it. All else equal you want to register as few cycles as possible.
Post back with any further questions but please accept as solution if this is the answer you needed.