Can upgrade you battery during the inevitable replacement of the battery from the factory

The inevitable death of my laptop battery occurred. I was getting an hour of battery with the ch - 484171-001 battery life, the 6 cell battery factory HP. I have to buy a new battery. My question is there an update available?  Or am I stuck with a spare identical (6-cell) battery which will only give the laptop of the same autonomy of recharge for an hour. Is there a heavier more 10/08/12 battery compatible with this format or - 6 cells is what's my phone, and that's what I have to replace it with.

Laptop HP Pavilion dv4-2145dx



Here is the link to the service manual for your laptop:

See Chapter 3, page 3-8 for battery options you have, with the corresponding reference numbers.

There is an option of battery 12 cells.


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