More power and longer playing time than other types of rechargeable batteries. A spare Li-ion battery provides hours of uninterrupted music playing time. Charges whenever the Bose SoundDock Portable system is plugged into wall outlet with power cord.
The full manufacturer's warranty from Bose® is only valid when the Bose® SoundDock® Portable Rechargeable Lithium-Ion Battery is purchased from an Internet Authorized Dealer. We will match any Internet Authorized Dealer's best price on the Bose® SoundDock® Portable Rechargeable Lithium-Ion Battery.