JBL Battery 120 for PartyBox 120

The JBL Battery 120 is a swappable, rechargeable power pack designed specifically for the JBL PartyBox 120 portable speaker. This lithium-ion battery allows users to extend playback time during outdoor events, camping trips, or backyard gatherings where mains power is unavailable. The unit features a capacity of 7.2V / 4277mAh, providing up to 12 hours of additional playtime depending on volume and audio content. It weighs approximately 300 grams, making it a portable solution for users who need to swap batteries quickly without interrupting the music. The battery is engineered to be user-replaceable, sliding easily into the designated compartment on the rear of the PartyBox 120. This accessory is compatible with the Australian model variant of the speaker, which is designed to operate on the standard 230V/50Hz electrical grid when charging via the speaker’s internal system. It serves as a practical solution for maintaining audio continuity during extended social functions.