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- HP Community
- Notebooks
- Notebook Hardware and Upgrade Questions
- Where to buy CMOS batteries

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08-20-2023 10:06 AM
Hi folks,
I'm desesperately looking to replace the CMOS battery for this notebook. I've been looking at many places (ebay, aliexpress, many online stores) and was not able to find a replacement battery at all or at a reasonable price.
Would anyone know a place specialised in such batteries?
Thanks in advance
08-20-2023 11:44 AM - edited 08-20-2023 11:45 AM
Welcome to our HP User Forum!
Your HP ProBook 440 G6 Notebook PC, according to: HP PartSurfer, requires this RTC (CMOS) battery with p/n: L02772-001 "RTC BATTERY".
You can buy this battery online, such as this via this trusted eBay Seller: https://www.ebay.com/itm/404315394133?hash=item5e23135055:g:HlgAAOSwmsFkeQpA&amdata=enc%3AAQAIAAAA4O....
Hope this was helpful.
Kind Regards,
NonSequitur777
08-20-2023 01:58 PM - edited 08-20-2023 01:58 PM
I double-checked purchase availability in Swiss/EU and couldn't find a convenient site for you to order from.
You'll have to approach the aforementioned eBay Seller, or a place like this one: HP RTC BATTERY Probook 430 G6 / Probook 450 G6 / Probook 450 G7 / Probook 440 G6 - L02772-001 (pcxss..., to see what shipping options -if any, are available to you.
Good luck!
Kind Regards,
NonSequitur777