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.