Specialized SL Range-Extender Battery (Black)

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Price: $449.99

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Medium-sized lithium batteries are subject to HazMat fees when shipped via air
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Battery anxiety? Specialized's compact and discreet SL Range-Extender Battery provides up to 40 additional miles of mountain-flattening power to complement the up to 80 miles of range from the Turbo SL’s internal battery. More range, more riding.


  • 160Wh capacity delivers up to one additional hour of riding
  • Compatible with Turbo SL Bikes
  • Includes a 3 LED charge-level indicator
  • Comes with Zee Cage II – Right Bottle Cage and Battery Retainer Band (mounts to water bottle bosses)
  • Connection cables sold separately (choose the length you need for your bike)
  • Optional Y-Split cable allows you to charge both the primary battery and range extender at the same time

This product was added to our catalog on August 3, 2020

David Stepner
Verified Owner
Tuesday, Feb 7 2023 (about a year ago)
Specialized SL Range-Extender Battery (Black)
The extra battery boosted my capacity by 50%, more than the reported 30%, the bike electronics seamlessly gave me combined total storage left, and the extra "electrons" were vital on my last big bike ride. It is a bit heavier than I thought it would be, but it was not an obstacle. I highly recommend if your ride is extra long or has big climbs.
Nicole Goudreau
Verified Owner
Saturday, Jul 8 2023 (8 months ago)
Specialized SL Range-Extender Battery (Black)
Not stoked with my customer service experience. I ordered the incorrect cable which was my fault, however in my defense there was only a mtb cable and road cable description. I paid shipping when I ordered, paid to ship the cable back and paid to have the correct cable shipped to me. Most companies at least offer free returns. I called the customer service rep and asked if I could get a discount on one of the 3 shipping and he said no. Not likely I will order from Performance Bicycle again since most companies cover shipping when spending this much money.
Kyle Mckinley
Verified Owner
Thursday, Jul 6 2023 (8 months ago)
Specialized SL Range-Extender Battery (Black)
Actually haven’t received my package yet so it’s kind of hard to write a review. Supposedly was shipped on June 22 and evidently has been lost. Contacted USPS and they’re supposedly trying to track it down. Any help from Performance would sincerely be appreciated. An investment of 350 dollars that I haven’t got to use yet!!
Richard Carlton
Verified Owner
Wednesday, May 24 2023 (9 months ago)
Specialized SL Range-Extender Battery (Black)
I needed this battery! I've been finishing rides with 12 percent battery left... Nice!
Donald Hall
Verified Owner
Friday, Apr 14 2023 (11 months ago)
Specialized SL Range-Extender Battery (Black)
Great product and service was great, fast shipping ?