Quick Question About Battery Slice - Precision M4400

Hello guys,

I tried searching around, but couldn't find specific info.

I am trying to get a battery slice, but I have found ones that are compatible for E6510, M4500, you get the idea. They are far cheaper with 4whr more capacity than the ones designed for E6500 and M4400.

Did any of you guys actually try the E6510 version on the older model? The part number is: Y6158 9H626 UY623

Physical appearance is the same, and I assume the connectors are really the same.. I am just trying to confirm this 100% before I buy this, because it appears that sellers on Ebay make clear distinctions between ones for E6500 and E6510 without explicitly citing the cross compatibility.

Thank you for your response in advance!

 

Brand New Dell E6400 E6410 E6500 E6510 M2400 M4400 Slice 84 Whr GN752 Battery | eBay

Does this ebay listing suggest that they are cross compatible?

 

Wow. Just found this thread during a search about these same batteries. I was trying to figure out what all models they would work on. If anyone needs some give a hollar. I have quite a few O.S. B.N.I.B. and they are just in the corner collecting dust.