Shimano Di2 DN300 DN110-A BTR1 Internal Recharge Battery
High-performance rechargeable battery designed for Shimano Di2 electronic shifting systems, compatible with XTR, Dura-Ace, Ultegra, and new Di2 models R8150, R8170, R9250. Features advanced lithium-ion technology for long-lasting power and rapid charging. Precision-engineered with a compact, lightweight design for seamless integration into internal frame routing. Ideal for road and gravel cyclists seeking reliable, maintenance-free shifting performance. Waterproof and dust-resistant construction ensures durability in all weather conditions. Provides consistent power output for smooth, instantaneous gear changes during intense rides or races. Backed by Shimano’s renowned quality, this battery delivers exceptional energy efficiency and a stable connection to Di2 components. Perfect for competitive athletes and enthusiasts upgrading to electronic shifting systems. Includes secure mounting hardware for easy installation. Global wholesale pricing with bulk order discounts available. Trusted by professional teams and retailers worldwide for genuine OEM parts.