PowerTube 500 holder

[bilihor]

Very little chance somebody already 3D printed it, but I will ask anyway.
Looking to replace bottle holder with spare battery holder for CANYON GRAIL:ON

Any other options? I did 2 long rides with battery in backpack. Next time will try under-saddle bag

 

[BlackHand]

A number of frame bags that hang from the top tube should work. The large of this brand fits a 625wh powertube, so should easily fit a 500wh. While the black medium in the photo below have below is the exact right size to fit a 500wh powertube, it does require modification to one end to allow it to open up enough to accept the battery. My spouse added a gusset with heavy duty velcro at one end so the battery can go in/out.

Green

The STASHERS modular, insulated bags features a food-grade removable liner to safely carry fruit, snacks, ice, etc. Use the liner with the cans or remove the liner to carry cans with coozies on them. The strap design on the bags is a key feature - the wide, durable straps reach all the way...

getstashers.com

 

[bilihor]

I have XS frame. The longest bag I can fit is 14 inches. PowerTube 500 is at least 15.