Add to Cart General Features What’s in the box Key Specifications Reviews General Features A great host always has a spare battery Keep the party going twice as long by having a spare JBL Battery 400 on hand. Just insert it into the battery slot in the back of your JBL PartyBox Stage 320 when the first one loses its charge. Each battery has enough power for up to 18 hours of playtime, which means you could keep the party going for up to 36 hours. Durable quality Give yourself the peace of mind that comes from a trustworthy, reliable JBL Battery 400 that’s guaranteed to work with your speaker. Fast charge 10 minutes fast charge will give your JBL PartyBox Stage 320 and Xtreme 4 an extra 2 hours of playtime. Works with the JBL PartyBox app Just use your JBL PartyBox app to check the health of your JBL PartyBox Stage 320’s current battery. When the Battery State of Health (SOH) reading lets you know it’s time, replacing the battery takes just seconds. Compatible with JBL PartyBox Stage 320 and Xtreme 4 JBL Battery 400 is only compatible with the JBL PartyBox Stage 320 and JBL Xtreme 4 wireless Bluetooth™speaker. Other speakers in the JBL PartyBox series and JBL portable series have different battery requirements. What’s in the box: 1 x BATTERY400 1 x Quick Start Guide 1 x Safety Instruction and Warranty Card Key Specifications Technical Specifications Model Name: FG4CELL21700G Battery Type: Lithium-ion battery Battery Capacity: 7.2V / 9444mAh, 68Wh Operating temperature: 0 -45 ºc Product Dimension (W x H x D): 93 x 25.1 x 89.5mm / 3.66” x 1.0” x 3.5” Net Weight: 350g / 0.77lbs Packaging Dimension (W x H x D): 110 x 102 x 34mm, 4.33” x 4.02” x 1.38” Gross Weight: 404g / 0.89lbs function openCity(evt, description) { var i, tabcontent, tablinks; tabcontent = document.getElementsByClassName("tab-content"); for (i = 0; i < tabcontent.length; i++) { tabcontent[i].style.display = "none"; } tablinks = document.getElementsByClassName("list-item-product"); for (i = 0; i < tablinks.length; i++) { tablinks[i].className = tablinks[i].className.replace(" active", ""); } document.getElementById(description).style.display = "block"; evt.currentTarget.className += " active"; } var acc = document.getElementsByClassName("accordion-product"); var i; for (i = 0; i < acc.length; i++) { acc[i].addEventListener("click", function () { this.classList.toggle("product-active"); var panel = this.nextElementSibling; if (panel.style.maxHeight) { panel.style.maxHeight = null; } else { panel.style.maxHeight = panel.scrollHeight + "px"; } }); }