Xadow M0 battery specs

Hi Seeed!

I am interested in knowing how much mAh is the battery that is provided with the Xadow M0 board.Thanks in advance!

Xadow M0 was shipping with with Lithium battery - 3.7V 85mAh, size L20W19H3.0mm-40mm. This product will be retired.

Thanks and Warm Regards