Elitebook 8760w - Which batteries are compatible?

Question

HI all,
I have only recently migrated over to HP from Thinkpad and would require bit of guidance from the elitebook experts to kindly help me with these two questions:
1. My battery has gone kaput and I would require replacement. I called up my local retailer and he was not familiar at all with w-series elitebooks. Instead he offered to provide me with batteries of p-series elitebooks or other probooks. I want to know which p-series batteries will work with my 8760w? Can a battery of 8440p be used with 8760w?
2. I have been using Thinkpad since 2002. It had a feature where you could control its charging thresholds. Essentially, you'd constrain the charge to remain between lower and upper limit. This avoided the battery to unnecessary remain charged at 100%. For a workstation notebook, you'd expect AC availability mostly and don't want your battery always charging. So is there any elitebook equivalent which allows setting charge thresholds?
Thanks for your time

Answer 1

These are the batteries you can use:
Battery:
8-cell, Li-ion, 2.8 Ah (75 WHr) 632425-001
8-cell, Li-ion, 2.8 Ah (83 WHr) 632427-001
Here is one on eBay:
http://www.ebay.com/itm/New-8Cell-83Wh-Genuine-Battery-for-HP-EliteBook-8560w-8760w-Laptop-QK641AA-V...
As far as the energy management program, I am also a Thinkpad user from way back and I know what you are talking about. The closest thing HP has is this:
http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/swdDetails/?sp4ts.oid=5071182&sp...
Power Assistant. I do not believe it has the ability to defer charging the battery unless the charge drops below a preset threshold (my Thinkpad is 90%) so as to avoid adding unnecessary charging cycles. But you can look at it a bit closer to double check. If HP has it, it is in that app. 
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