User Guide Part 2
Chapter 5: Using Your Sonos Controller
5-31
Battery Charging
Your Controller can be recharged by plugging it into the AC adapter supplied with your 
Controller. The battery charge indicator   on your Controller will show you when it is 
time to recharge the Controller. If the battery charge gets very low, the battery status 
indicator light will light red. Be sure to recharge using only the AC adapter supplied with 
your Sonos Controller.
Battery Replacement
After several years (depending upon usage), the battery on your Controller may not 
hold a charge as long as it once did. Because of the Controller’s splash-resistant design, 
the battery on the Controller must be factory-replaced. Return it to the Sonos Service 
Center where it will be promptly replaced and returned to you. Go to  
http://support.sonos.com for instructions and battery replacement cost.
Caution Use only the supplied power adapter to charge the Controller’s battery. 
Using another adapter will damage your Controller and void your product 
warranty.
Caution Danger of explosion if battery is incorrectly replaced. Replace only with the 
same or equivalent type. Return to Sonos or an authorized Sonos service center for 
replacement.










