E-Bike Battery Bag - store your battery or take an extra with you on your ride (Black)

• Easily mounts to a bike rack with hook and loop straps
• Fits most batteries , 7" x 3.5" x 22"
• Compatible with Bosch PowerTube batteries and many others
• Made with waterproof and flame resistant inner liner (passes FMVSS 302 Flame Test)
• Sealed construction with roll up closure and buckles

https://www.roadbikerider.com/bikase-fireproof-ebike-battery-storage-bags-review/