BiKase

eBike Battery Bag

BiKase eBike Battery Bag protects an eBike battery from rain, road spray, and grime while keeping the pack secure and easy to access on a rear rack. Designed as a simple, rack-mounted solution, it uses hook-and-loop straps for fast install and removal—ideal for commuting, errands, and wet-weather riding where keeping the battery clean and dry matters.

• Waterproof Battery Protection - Helps shield the battery from moisture and road spray to support more consistent day-to-day eBike use in bad conditions
• Rear Rack Mount - Hook-and-loop straps attach directly to most bike racks for a stable, no-hardware setup
• Fits Most eBike Batteries - Sized to accommodate a wide range of common battery shapes used on rack-based and utility-focused builds
• Two Size Options - Regular: 3.5" x 3.5" x 22"; Large: 7" x 3.5" x 22"