how many batteries you have for lumia 820?

[nobrands]

Can't believe it is my first replacement battery for lumia 820. The factory battery that had been in Lumia 820 was only staying charged for less than half day and I needed to find outlet all the time to use it. So I appreciate that the new 2500mah mpj extended battery revitalized my phone. Now despite the 820 having game apps and using the wireless or 4G I have hours of time! How many batteries you have for lumia 820?