Account detailsYour Cart

Free delivery on all orders over £50

0% APR Finance Available

Rated 5* on Trustpilot

1477541 / 54295590076762

Product Details

Powering the whole Di2 system, the Shimano BTDN300 Internal Mount Di2 Battery (SD 300 Type) has a lightweight, robust and efficient design that’s perfect for integration into high-end road bikes. Its compact size allows it to be discreetly mounted inside a seat post or frame, while it's comprehensive sealing easily sees off the worst weather conditions. One charge will last approximately 1000 kilometres of use and charging is performed via the Shimano Dura-Ace R9200 or Shimano Ultegra R8100 rear derailleurs or optional junction boxes.

Features
  • The power house of Shimano Di2 is this long-life 7.4V Li-Ion battery
  • The design is lightweight, efficient and creates a robust and reliable system
  • Compact size allows it to be discreetly mounted inside a seatpost or frame
  • Excellent sealing and reliability have been proven through tests within extreme temperatures, rain, mud, and cobblestone roads
  • One charge gives a 1000 kilometre range (depending on conditions and front mech operation)
  • The lifespan endures 500 charging cycles
  • Reliable and secure water resistant SD300 E-tube wire connections
  • Charging is done via the Dura-Ace R9200 or Ultegra R8100 rear derailleurs or junction boxes
  • Compatible with Dura-Ace R9200 or Ultegra R8100 Di2 configurations only
  • Manufacturer claimed weight: 50 grams
Specifications
Power Source Type
Rechargeable Battery
Primary Product Type (Electronics)
ebike-battery
Discipline Compatibility
Road
Display Type
No Display
Mounting Location
frame
Weight (g)
50 g
Product code
1477541 / 54295590076762
Reviews
No reviews yet

No reviews yet. Be the first to review this product.

Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

Payment & deliveryReturns & exchanges
Q & A

Be the first to ask a question about this product.

About Shimano

Shifting the way the world rides.

From a single Osaka workshop in 1921, Shimano has grown into the world's most influential component maker. The brand's relentless engineering — Dura-Ace, Ultegra, GRX, XTR — has shaped the way the world shifts, brakes and rides, on the road and off it.

Shimano's flagship groupset, Dura-Ace, has been the benchmark for top-level road components for more than five decades. Every refinement that lands on Dura-Ace eventually shapes the entire Shimano range, all the way down to entry-level drivetrains.

Related Products