10000mAh Rechargeable Lithium-ion Replacement Battery Compatible with JBL PartyBox Stage 320 and Xtreme 4 Portable Speaker,Perfect Replacement for JBL Battery 400 Easy to Install(1-Pack) 7.4V 74Wh

High CapacityBoasts a battery capacity of up to 10000mAh, delivering up to 19 hours of playback time per charge. The optimized cycle function enhances battery life, ensuring long-term performance. It is easy to install and serves as an ideal replacement for the original battery ^^ Fully CompatiblityEngineered exclusively for the PartyBox Stage 320 and Xtreme 4 portable speakers to guarantee a perfect fit and elevate your music experience ^^ Convenient Fast Charging & Easy ReplacementThis product comes with a USB-C charging cable that works with portable chargers, wall chargers, and the original charger, allowing fast and convenient charging anytime, anywhere.

The LED indicator provides a clear view of the charging status. For the PartyBox Stage 320, just pull out the battery from the back and replace it. For the Xtreme 4, use a screwdriver to remove the top cover, replace the battery, and reattach the cover ^^ Safe & ReliableEquipped with an integrated smart chip that offers multiple protections against over-charging, over-discharging, over-current, and over-heating, ensuring safe and reliable use ^^ Customer ServiceWe provide a 30-day money-back guarantee and a 12-month warranty. customer support is available 24/7. For any battery questions, contact us whenever you need!