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- HP ENVY 17t-ce100 CTO Aftermarket Battery Different

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02-07-2025 09:27 AM
I had to replace the battery in my HP ENVY 17t-ce100 CTO.
The original battery is part number L09281-855, but it is no longer manufactured. So I had no choice other than to buy a 3rd-party battery.
The battery that I bought which is supposed to be compatible is 11.55V, 3100 mAh., instead of the specifications of the original battery, which was 52Wh, 4.55aH.
Question 1: Is it OK to use the new battery although the energy specifications are different?
Question 2: The laptop will not allow me to log on with my screen pin since installing the battery. I have to enter my MS account.
Question 3: Every time I start the laptop I get an annoying message alerting me that the battery is not OEM.
02-07-2025 11:32 AM - edited 02-07-2025 11:46 AM
Here is the search I did. I found quite a few genuine HP L09281-855 batteries.
If the battery you purchase does not have the identical HP part number and the HP logo on it it may not, as you now know, work as expected.
The reason is the difference in programming of the battery management chip that communicates on the smBus (system management bus) with the battery management chip on the laptop's system board.
An HP genuine SMART battery will have the standard HP programming of its BMC chip that the laptop expects and the aftermarket non-genuine battery most likely does not.
Your questions
Question 1: Is it OK to use the new battery although the energy specifications are different?
Not really. The original genuine battery had the design specification that the laptop requires.
Question 2: The laptop will not allow me to log on with my screen pin since installing the battery. I have to enter my MS account. Go back into settings and make the changes to the sign-in options. see the image below
Question 3: Every time I start the laptop I get an annoying message alerting me that the battery is not OEM.
That will continue until you install a battery that the system board battery management chip recognizes a genuine(OEM).
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02-08-2025 03:44 AM
Thanks so much for your response.
I also was able to find the original HP battery online, but it didn't seem likely to me that these batteries, if they are authentic, are really new, given that the company itself has stopped manufacturing them.
Any opinions about whether or not the websites that say that a discontinued part for sale is really new and unused? It just sort of seems unlikely to me.
Thanks!
02-08-2025 11:03 AM
I have an HP Spectre x360 - 13t- ap000 laptop.
I have replaced the battery twice, beginning with two years after purchase. I replaced the battery about a month ago.
I have used the method of battery identification and purchase for many years and have never had an issue.
The HP part number and the logo are the guarantees that they are authentic and produced under license in HP specifications.
HP does not manufacture laptop batteries.
HP seeks competing bids from battery manufacturers to produce them under HP's exacting specifications.
Few companies worldwide would be willing to produce and sell a fake HP branded product. HP would go after them and own them.
You can always query a laptop battery itself by using the Windows Battery-Report utility to find out when it was produced and its actual state.
I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"
02-16-2025 06:53 AM
Erico, thanks for taking the time to help. I had previously done an exhaustive search but had discounted almost all of the places that said they had the original battery, because once I looked further, either the battery was not the right one, or the specifications were different, or the reviews rated the site as unreliable or just place a scam. In the end, I did buy the battery from ifixit.com. It is listed as an HP product. However, the specifications are a bit different, and it does not carry the HP logo, which shows it is not really authentic. However it does work, and the error message does not appear, so I will keep it.