What is inside of a Shimano Di2 Internal SM-BCR2 Battery

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SHIMANO BCR2 Charger DI2 Electronic Shift System Internal Battery PC Link

Shimano Di2 Batteries. Must purchase battery, charger, and power cable to complete the system. All Di2 components on the bicycle require the same firmware version.

Shimano BT-DN110 Di2 Battery

Shimano Di2 BT-DN110-A

Di2 crushed wire replacement

Shimano Cycling SMBCR2 SM-BCR2 Di2 Internal Battery Charger Direct

Shimano BT-DN110 Di2 Internal Mount Battery Unboxing

DIY fix when Di2 charger's error light keeps flashing

Shimano SM-BCR2 Battery Charger : Bike Components

Charging Ultegra Di2 6870

Charging Ultegra Di2 6870

Shimano Ultegra and Dura-Ace Di2 Electronic Shifting – Everything