Shimano Di2 Built-In Battery SM-BTR2

Or 3 x $60.00 Per Month
Global RRP: $229.99
(You Save $50.00)

Ever since Shimano released the Di2 groupsets, we've been waiting for an internal battery option to replace the external one that was always difficult to find the best spot to place.

Now the wait is over and Shimano truly delivered a small, light and cylindrical battery that can be placed in multiple places of the frame like the seatpost (most common), seatube or even downtube. Probably the best feature of this new battery is that you don't need to remove it from the bike to recharge. Due to the clever junction box located under the stem, it is possible to charge the battery by plugging the USB cable.

One charge will last you 1500km to 2000km and Shimano claim you can fully recharge the battery 300 times at 100% battery capacity.

Shimano SM-BTR2 Di2 Battery comes with a seatpost mounting hardware to help you but you might need frame-specific adapters to finish the installation.

This product is offered by Bicycles Online Australia pursuant to the Terms and Conditions and is shipped from our Australian Warehouse located in North Manly, NSW. Please see below shipping options for this product.

All orders received by 5pm AEST will usually be dispatched the following business day. If an order is placed on the weekend or public holiday, please note dispatch will usually be the next working day. For tracked shipments, please allow 12 hours for tracking to begin


Shipping of Bikes

Shipping of bikes and some other bulkier items is free to 97% of residences, however some remote postcodes do incur a surcharge. Please click here for a list postcodes and surcharges

Once your bike has been dispatched you will be issued a consignment number which you can use to track your parcel at For estimated shipping times, click here

We do require a signature upon delivery, for this reason we recommend business addresses or where someone will be present on the day of delivery. You can leave special instructions (eg leave on porch) however you will need to assume all responsibility without a signature. 

We cannot ship to PO Boxes. For full shipping details click here.


Shipping of Parts, Accessories and Apparel from Australian Warehouse

There is free delivery available on all parts, accessories and apparel, Australia wide using our Australia Post or Fastway, no minimum order value required. Estimated delivery time is up to 4 to 9 business days depending on where you are located in Australia.

Please be advised that products under $30 might be shipped via untracked mail with Australia Post.

We do also offer Express Shipping for a small additional fee on parts, accessories and apparel orders. Estimated delivery time on Express Shipping is 1 to 4 business days.


This product comes with a 12 month Australia Wide Warranty. In the unlikely event that you require a warranty repair, we will collect your item, repair or replace it, then return it to you at no charge. It is a requirement of warranty that you keep the original packaging for transportation.

Learn more about our Warranty Policy.

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