Shimano Di2 internal battery charger SM-BCR2 11-speed

The SM-BCR2 internal Di2 battery charger for the Shimano is designed to recharge the internal batteries of 11-speed Di2 systems (Shimano ). Essential for electronic groupsets fitted with an internal battery, it makes it easy to keep the Di2 system operational and to fully enjoy the precision and speed of electronic gear changes.

The SM-BCR2 is compatible with the following internal batteries Shimano, BT-DN110 and BT-DN110-A, as well as the older SM-BTR2 battery. Shimano It is also presented as a PC interface device that allows you to use E-TUBE PROJECT to carry out certain firmware updates and customise the system settings.

Compact and easy to use, the charger connects to the Di2 system via its dedicated cable. It is powered via USB, allowing it to be connected to a computer or a compatible USB mains adapter.

Key features of the SM-BCR2 Shimano

• Official Shimano Di2 charger for compatible internal batteries.
• Compatible with BT-DN110 and BT-DN110-A.
• Compatible with the older SM-BTR2 internal battery.
• Suitable for Shimano Di2 11-speed systems using this generation of battery.
• ConvenientUSB power supply for recharging.
• Charging cable integrated into the SM-BCR2.
• CHARGE and ERROR indicators to monitor the charging process.
• Can also be used as a PC connection for E-TUBE PROJECT.
• In particular, it enables firmware updates and system customisation for compatible systems.

An essential charger for internal Di2 ‘ Shimano ’ systems

Unlike more recent Di2 groupsets, which use different generations of batteries and connectors, Shimano Di2 systems fitted with a BT-DN110, BT-DN110-A or SM-BTR2 internal battery use the specific SM-BCR2 charger.

The charger connects to the system via the designated connector, specifically at the system’s charging port. Shimano states that the SM-BCR2 is specifically designed for the SM-BTR2, BT-DN110 and BT-DN110-A lithium-ion batteries.

A convenient USB connection

The SM-BCR2 features a micro-USB connector for power supply. The USB cable can be connected to a computer’s USB port or to a mains adapter fitted with a USB port.

This design makes it easy to use at home, in the workshop or whilst travelling, provided you have a suitable USB power source.

A connection function with E-TUBE PROJECT

The SM-BCR2 is not just for charging. Shimano also states that it can be used as a PC interface device for the E-TUBE PROJECT software on compatible systems.

It can therefore be used for certain firmware updates and for customising Di2 groupset settings.

This dual functionality makes it a particularly useful accessory for owners of an Shimano Di2 11-speed groupset.

Expert tip: before purchasing, be sure to check the model number of your Di2 battery. The SM-BCR2 is compatible with the SM-BTR2, BT-DN110 and BT-DN110-A, but it is not compatible with newer-generation Shimano Di2 batteries using the SD300 connector. Shimano specifically states that the new BT-DN320 battery uses the EC-DN100 charger.

Technical specifications

• Brand: Shimano
• Model: SM-BCR2
• Type: internal Di2 battery charger
• Intendeduse: Shimano Di2
• Battery compatibility: SM-BTR2, BT-DN110, BT-DN110-A
• Drivetrain: compatible Di2 systems, including 11-speed
• Power supply: USB
• Power connector: micro-USB
• Indicator lights: CHARGE and ERROR
• Charging cable: included
• PC connection function: yes
• Compatible software: E-TUBE PROJECT
• Manufacturer’s part number: SM-BCR2