Di2 - battery / charger

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?

SM-BCR2

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)

> How to video