AXS equipped bikes should be stored with the batteries removed from the derailleurs, with battery blocks and battery covers installed to prevent damage to the battery latch and contacts.
We recommend storing AXS batteries with a full charge. Storing AXS derailleur batteries partially or fully discharged for extended periods of time can degrade their capacity.
The CR2032 batteries located in AXS controllers can remain installed during times of storage. They will not discharge or corrode.
As AXS derailleur batteries are stored they may discharge slightly, this is normal. When it is time to start riding again, place the batteries back onto the charger to ensure they are fully charged before re-installation and use.
For a visual on how to install battery blocks and battery covers, see our video here: