Is there any difference in the battery on the Arlo pro and Arlo pro 2?

[JimboJones]

Just purchased the arlo pro 2 add on camera.  I have a spare battery originally bought for the arlo.  Is there any difference in these batteries? I see that they are both 2440mAh and voltag. rating is the same too.  But the model numbers are different. The pro being model A-1 and the pro2 being model A-1B

[TomMac]

The Arlo camera uses 123 cells , the Pro and Pro2 use the same battery pack.