I wonder how much bigger is the external battery of a new XP 22.5 HF coil compared to the integrated one. Will the battery life be long enough for a season without charging? Here’s a pictorial report: what’s in the box with the XP 22.5 HF.
Let me remind you: in autumn 2016, XP (France) revealed several new products, among which there was an XP 22.5 HF coil. Its distinctive features are operation at high frequency, the battery inside the shaft, and it works only with the V4.0 update and higher. All about the XP 22.5 HF coil is collected here and here.
https://www.youtube.com/watch?v=9MpiAbMG8qA