REPLACEMENT BATTERY FOR SONOS CONTROLLER CB200 3.70V 754993968884 | eBay
Batteries N Accessories BNA-WB-RLP-020-3.6 Remote Control Battery - Li – batteriesnaccessories.com
Compatible Battery For SONOS Controller CR200 CS CB200RC
Sonos® Controller CR200 Touchscreen controller for the Sonos Music System at Crutchfield
Synergy Digital Remote Control Battery, Works with Sonos CONTROLLER CR100 Remote Control, (Li-Pol, 3.7, 3600mAh) Ultra High Capacity, Compatible with Sonos CP-CR100, URC-CB100 Battery - Walmart.com