Chart EntryClick

I have a simple app that charts the battery current and voltage of the device ( it uses the chart component included ).
I have a line chart with 2 series. I've added the 'entryclick' event to retrieve the series name, x and y value of the point clicked.

It works in that the x and y values are retrieved correctly, but the serie name is invariably the second serie name, even if I click a point of the first serie.

I followed this post advice Is it possible to have my Chart with text axis? - #19 by ABG not sure I did it correctly ( also chart documentation not very extensive on the point ).

Bat01_04.aia (49.8 KB)