Brand new OEM with no retail box. 

Comes with BT-DN300 E-Tube batter, 1x 600mm, 1x 1000mm EW-SD500 wires, EW-EC300 charging cord, TL-EW300 wiring tool.

Compatible with Dura-Ace R9200, Ultegra R8100, 105 R7100 Di2 systems. Brand new OEM. The Shimano BT-DN300 is a built-in Lithium-ion Di2 battery (52g) designed for 12-speed road/gravel drivetrains, featuring three SD300 ports for simplified wiring and 3.7Wh capacity. It offers extended battery life (approx. 1000–2000 km per charge) and supports both semi-wireless and fully wired setups, fitting inside seatposts or frames.

Need (or want!) to return a product? No problem! US returns can be made for free within 60 days of purchase for any reason as long as item is in the same condition as received. US customers will receive a return shipping label and will be refunded the full order amount once the item is received. 

To file a return, simply login to your account and select your order to file for a return. We will get back to you with a generated shipping label free of charge and will refund the payment as soon as the item is returned to us in undamaged condition. 

You can always contact us for any return question at cs@ejrecyclery.com.

Note: Items that were marked as-is/for parts and/or do not have the red EJR 60 Day free returns display are not eligible for returns.  

Note about purchases from eBay: Purchases made from our eBay store have the same return policy, but you will need to file for returns made there directly on eBay. 

European Union 14 day cooling off period
Notwithstanding the above, if the merchandise is being shipped into the European Union, you have the right to cancel or return your order within 14 days, for any reason and without a justification. As above, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

Login to file a return