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48v 9ah Bottle Battery w/ Cradle (18a Discharge)

     This Bottle Battery is great for making lightweight conversions, and fitting into tight spots that other larger batteries cannot. Featuring an on/off power button, USB port (for charging your mobile device etc.), and a locking cradle, these are typically installed on your downtube, but some people put them in a backpack with an extension, while others fit them inside a bike frame bag, place them on a rear rack, or in a pannier. If using with a recumbent/trike, they often work out nicely installed on the boom due to the small diameter and low weight. They also mount great on T-Cycle and other available Battery Mounts.

     - This battery is 432 watt hours. On average riders use around 20-25 watt hours per mile. This is the perfect battery for approximately 20 miles, although with lower power/assist you may get up to 40 miles or so.

    - This pack is suitable for lower power 48 volt systems that only require 18 amps max continuous discharge. We specifically pair this battery with our 48v TDSZ2 Models, but 48/52v BBS02 Models will also work fine if they are tuned down considerably to below 18 amps. Most 48v hub systems require a bit more power than this, but some smaller 48v hub systems are lower power and a good match as well - refer to your current setup's requirements to be sure.

   -  This Battery has a DC5521 Barrel Charge Port, and includes a 2 Amp Charger. The Discharge cable uses an XT90s Anti-Spark Connector. We also have adapters available if needed. As with all our products, this is covered by our Comprehensive Warranty and Extended Support Plan.



  • Compact
  • Lightweight
  • Highly Water Resistant Design
  • Power Button under Top Cap
  • USB Port under Top Cap (5v1a - for Charging a Mobile Device, Bluetooth Speaker, etc.)
  • DC5521 Barrel Plug Charge Port under Top Cap
  • Includes 48v (42v max) 2a Charger
  • 4"+ Discharge Cable uses an XT90s Anti-spark Connector
  • Discharge Adapters Available


  • Capacity: 48v (54.6v Fully Charged) 79ah
  • Configuration: 13 Series 3 Parallel
  • Cells: 18650 Li-on [Li(NiCoMn)02] 3000mAh
  • Cycle Life: 500+ Cycles @ =/> 80%
  • Output: 18a Continuous Discharge
  • Input: 3a Charging Max Recommended
  • Low Voltage Cutoff: 39v
  • Weight: 5.8 lbs (2.63 kgs) [5.4 lbs Battery | .4 lb Mount]
  • Dimensions: 3" Diameter Battery * 3.4" Diameter Cradle * 14.5" Total Length (77mm Diameter Battery * 85.4mm Diameter Cradle * 370mm Total Length) - See Diagram Photo