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‎09-22-2017 12:47 AM

HP Recommended
Product: Elitebook 840 G2

My Note says it support secondary battery (two different battery) both in the power management panel and HP Notebook brochure. What I don't understand is where can you put the secondary battery in it? There isn't any extra space to put any second battery. Can someone explain this to me?

 

http://www8.hp.com/h20195/v2/GetDocument.aspx?docname=c04472796

12 people had the same question
6 REPLIES 6

‎02-12-2018 05:06 AM

HP Recommended

There is an extended battery which connects to the underside to your laptop. 

 

Looks like this:

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‎06-19-2018 02:10 PM

HP Recommended

Do you have a product number for that secondary battery? The HP battery page seems to be having some issues. 

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‎10-21-2018 11:48 AM

HP Recommended

i have a hp840 g1 and there is an option of secondary battery (Battery 2) and the terminals are also present but don't know where to find that battery and how to find it  

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‎10-23-2018 02:03 AM - edited ‎10-23-2018 02:06 AM

HP Recommended

Yes I do. This is a product of my second battery

634087-001 En stock  
Battery (Secondary/Ultra Capacity) - 9-cell lithium-ion (Li-Ion), 3.0Ah, 100Wh

 Where will I put it?

 

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‎10-25-2018 11:33 AM

HP Recommended

Yes and it's product number is 

HP CO06XL Long Life Notebook Battery(E7U23AA)

Hope this Helps!

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‎12-28-2019 05:30 PM

HP Recommended

I just got the 2nd battery for my 840, let it charge for about 5 hours, and connected it to my laptop but it doesn't seem to register. I have the battery locked, so it should be all properly connected. Any tips on getting it to work? 

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