BT-DN300 Shimano BT-DN3003 Di2 Battery - Built-In Type Thanks to its compact dimensions, the flat Shimano BT-DN300 battery can be integrated inconspicuously into the seatpost or frame. Not only in terms of dimensions, it is similar to its predecessor BT-DN110, but also concerning waterproofness, it is in no way inferior. The lithium-ion battery features three SD300 ports for the connection to front and rear derailleur. The third connector is used in the case of a fully cabled Di2 groupset. In-house tests with the components of the current Dura Ace R9200/R9250 and Ultegra R8100/R8150 12-speed series have shown that the battery provides a powerful and stable power supply for the powerful actuators of the rear and front derailleur over a range of 1000 km on average. Technical details of the Shimano BT-DN300 Di2 battery pack battery type: Li Ion rated capacity: 3.7 Wh / 0.5 Ah rated voltage: 7.4 V ports: 3x EW-SD300 activity: Cycling battery ernergy: 3.7Wh voltage: 7.4V battery: Custom Li-Ion/LiPo Pack bike shifting accessories version: Batteries number of ports: 3 software compatibility: Shimano E-Tube Model year: 2022 weight: 52g The new DN300 battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12-speed road derailleurs and shifters (if a fully wired option is selected). With the same size as its predecessor, the slim DN300 battery can be housed inside seat posts or frames ensuring a clean aesthetic. Now with 3 ports, the DN300 simplifies wiring to front and rear derailleurs, supplying stable power at all times. The third port is for riders who seek the redundancy of Shimano's 12-speed Di2 wired option. Close FEATURES Compatible with thinner next generation electric wire SD300 and systems after R9250/R8150 series 3 SD300 ports Shared fixing method with BT-DN110 Can Whatsapp / Call . https://wa.me/60126960321 Vince . https://wa.me/60126105929 Shop . office 03-8060 8967 Operation Hour Monday to Saturday (10.30AM TO 7PM) SANTA CRUZ (VK CYCLES PUCHONG) Map - https://goo.gl/maps/8y79tAyzkEE2 (LOCATION) No 39, Jalan BP 7/2 , Bandar Bukit Puchong, 47100, Selangor , Puchong Facebook - https://www.facebook.com/SpecialistRepairBicycles/ Instagram - VK CYCLES PUCHONG Buy on shopee: VK CYCLES PUCHONG https://shopee.com.my/product/78112047/23079938544/ Buy on LAZADA: VK CYCLES PUCHONG https://www.lazada.com.my/products/i3792162033.html?spm=a1zawi.24863640.table_online_product.1.4ea34edfVm3tTo Buy on Tiktok: VK CYCLES PUCHONG https://shop.tiktok.com/view/product/1729484170361210038?region=MY&locale=en