BOSE S1 Pro+ Battery Pack

Extend the use of your Bose S1 Pro+ Wireless System with an additional battery or replace your existing one. This lithium-ion battery offers up to 11 hours of playback per charge and installs easily in the battery compartment of your S1 Pro+ for safe and reliable use.

Up to 11 hours of battery life even at high volume levels for maximum reliability in your performance

Lithium-ion technology offers high energy density and allows you to use the S1 Pro+ at maximum power without compromising volume levels

Always install and leave the battery inside the S1 Pro+ system for safe and easy charging