will the battery work for my laptop model?, will the battery work for my laptop model?

Hello, everyone,

I have a hp pavilion dv4 laptop and it ported prone to failure due to the problem of one of the harewares. But my battery is pretty new and i just bought from . I don't want to give it up. I recently bought Hp DV6 Envy 7210tx laptop with built in Windows 8. The battery acting fine but I need to work where ever I go since most of the time I remain online for working. In other words, only one battery can't meet my need at all. The major concern for me is whether my ealier battery can fit my model or not. i check the website for answer, but i don't find my model "Hp DV6 Envy 7210tx" in the dv4 battery but dv6 battery, is it ok to use it for my new device? In my opinion, Hp DV6 Envy 7210tx belong to dv6 series...

Any of your comment will be highly appreciated