I have 3 batteries for my MA2 which I got when I purchased my MA2 with the combo package. They all have the same build date. Yesterday when I was setting up I got a notice to update the battery firm ware which I did to the battery installed in the MA2. When I installed the other 2 batteries the notice to update never came up. Is there a way to check the status of firm ware of the batteries? Nothing list in the manual for this.