Hej Hej Kimmoi,
about reliability of Pinion you have in the german forum also a lot of my comments under my same avatar
( mutta olen ranskalainen ! / mais, je suis français / men jag är fransk )...
I have a new battery since a week.
The new battery is a little bit wider, it was necessary to cut with a cutter a little bit of the plastic base from the Rox 12.0
Pay close attention to the three micro connectors. You have to lift and not to pull them !
It works well... like before with...
Like I wrote in two german forums pedelecforum.de
and mtb-news.de >>> Sigma GPS Rox 12.0 Sport
the gps Sigma Rox 12.0 is only good and reliable,
if you have made your tracks at home with Komoot for example.
But, you may never leave the track for a while ,
because the Sigma is not able to find...
The designer of the E8000 and the EP8 is... a certain Henry Bosch, a Dutchman,
who is the product development man at Shimano.
He works with another Dutchman, Bas van Dooren and with his Japanese colleagues.
From the Netherlands he is the pivot man between Europe and Japan since 16 years.
Yes, Shimano E8000 servicing is easy and absolutely reliable.
For me since November 15, 2021 and I'm very close to 2500 km after servicing in just 2,5 months.
See all my reviews and descriptions with lots of photos before and after this point.