Aventon BiKASE Battery Bag lets you safely carry or store your e-bike battery wherever the ride takes you. Designed for versatility and protection, this durable bag easily mounts to most rear racks using secure hook-and-loop straps—perfect for bringing a spare battery or transporting your existing one.

Constructed with a waterproof and flame-resistant inner liner, the BiKASE Battery Bag keeps your battery safe from the elements and meets FMVSS 302 flame safety standards. The sealed roll-top closure with buckles ensures a snug, weatherproof fit that’s ready for any condition.

Features:

• Safely stores or transports your e-bike battery
• Mounts easily to most bike racks using hook-and-loop straps
• Waterproof and flame-resistant inner liner (FMVSS 302 compliant)
• Roll-top closure with buckle fasteners for secure sealing
• Durable, sealed construction for all-weather protection
• Fits most e-bike batteries up to 3.5" × 3.5" × 22"