Determining your ZBoard's Series
Over the years we've adjusted the ZBoard's part mix. In late July 2014, we switched to a slightly different battery type on our Pro and SF Special models. These new batteries require the use of new chargers.
Boards with the previously used batteries are marked under the tail with the letters A through Q. Boards with no marking also fall into this category.
Boards with the newer batteries are marked under the tail with the letters R-Z.
Another way to determine the series is to look at where your warning sticker is:
If your warning sticker is on the side of your box, your board is Series A-Q.
If your warning sticker is on the bottom of your box, your board is Series R-Z.