Hammer out big days with Range Extender. This compact back-up battery adds 160 Wh of power to extend your range by up to 44%.

It fits neatly into a Bontrager side-load water bottle cage in the inner triangle, where there's a short reach to the charge port, and is secured in place by a retention strap (Range Extender cable and retention strap sold separately).

Features:

• 160 Wh battery
• Charge port enables charging both bike and range extender simultaneously
• LED battery-level indicator
• Includes Range Extender user manual
• Ships to retailer. Not returnable.
• Retention strap, Range Extender cable, and four M4 x 6mm fasteners are required and sold separately
• 950 grams
• Battery is certified by an accredited testing laboratory as compliant with UL 2271