Where is it mounted?
> See FAQ - 'Di2 Shimano battery - Where is it mounted?
How long does it last?
> See FAQ - 'Di2 Shimano battery - How long does it last / charging'
How do I check the charge level?
> See FAQ - 'Di2 Shimano battery - battery charge level?
What is the charger called?
How do I plug in the charger without damaging the charging socket?
(For the older ST5 models with the charging socket in the bottom bracket area)