2-Pack USB-C Replacement Battery for JBL PartyBox Stage 320, Partybox Club 320 & Xtreme 4 — JBL Battery 400 (10000mAh, USB-C Charging)

Two high-capacity 10000mAh rechargeable batteries designed for USB-C charging and built as compatible replacements for JBL Battery 400. They deliver reliable power with a stable 7.4V output to extend runtime for your portable speaker. Compatible models: JBL PartyBox Stage 320, Partybox Club 320, and Xtreme 4 Portable Speaker. Safety is handled by an integrated multi-protection system that prevents over-charging, over-heating, over-discharging, short-circuit, over-current, and over-voltage, helping to prolong battery life and protect your device. What’s in the box: 2 x 10000mAh rechargeable batteries compatible with JBL Battery 400; 2 x USB-C cable. Support: includes a 6-month warranty and 24-hour email support.