{"product_id":"jbl-battery-400-replacement-battery-for-partybox-stage-320-and-xtreme","title":"JBL Battery 400 Replacement Battery for PartyBox Stage 320 and Xtreme","description":"\u003cp\u003eIn this review of the JBL Battery 400 replacement pack, the bottom line is straightforward: this battery is for owners of the PartyBox Stage 320 or Xtreme 4 who need a high-capacity, reliable replacement that restores long portable playback. The reviewer found the 10000 mAh pack delivers extended run time and sensible safety features, and that installation is straightforward with basic tools. For anyone wanting to avoid frequent recharges during events or outdoor use, this battery addresses the single biggest concern-playback endurance-while matching the form factor and connection style of the original unit.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Capacity:\u003c\/strong\u003e The 10000 mAh (74 Wh) capacity provides significantly longer playtime per charge, helping reduce interruptions for portable parties or long listening sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Cycle Life:\u003c\/strong\u003e Designed with cycle protection and quality testing, the pack is claimed to last more than 1000+ charge cycles, which improves long-term value over cheap replacements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Safety:\u003c\/strong\u003e An intelligent protection chip guards against overcharge, overdischarge, short circuit and overheating to reduce risk during everyday use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Formulated as a direct replacement for PartyBox Stage 320 and Xtreme 4 portable speakers, so it fits the intended models without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Install:\u003c\/strong\u003e The compact pack is installed using a Torx T20 screwdriver for straightforward swap-out of the original battery (screwdriver not included).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter-sales Support:\u003c\/strong\u003e The product includes a 12-month warranty and vendor support to help confirm compatibility and resolve issues after purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis battery is ideal for PartyBox Stage 320 and Xtreme 4 owners who use their speakers for extended sessions outdoors, events, or mobile DJ work and need a dependable replacement that restores or extends runtime. The larger 10000 mAh capacity is especially useful for users who want up to around 19 hours of playback per battery in real-use scenarios and value longevity from more than 1000 charge cycles.\u003c\/p\u003e\n\u003cp\u003eIt is not for people who expect tool-free, instant clip-in swaps; installation requires a Torx T20 screwdriver. Also, buyers who need a different form factor or a speaker model other than the listed two should look for a battery specifically sized to their unit.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh 10000 mAh capacity that noticeably extends playback time versus standard cells.\u003c\/li\u003e\n\u003cli\u003eInternal protection circuitry and extensive testing for reliable, safer use over many cycles.\u003c\/li\u003e\n\u003cli\u003eDirect compatibility with PartyBox Stage 320 and Xtreme 4 for a clean replacement.\u003c\/li\u003e\n\u003cli\u003e12-month warranty and vendor support if questions about fit or performance arise.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequires a Torx T20 screwdriver for installation, which is not included, so some users will need to supply tools.\u003c\/li\u003e\n\u003cli\u003eLimited to the specified speaker models; not a universal battery for other devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSicimly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel fit\u003c\/td\u003e\n\u003ctd\u003ePartyBox Stage 320, Xtreme 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e10000 mAh \/ 74 Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell ID\u003c\/td\u003e\n\u003ctd\u003ePN FG4CELL21700H (3500 mAh cell spec referenced)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemistry\u003c\/td\u003e\n\u003ctd\u003eRechargeable Lithium-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e12 months\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Sicimly replacement for the JBL Battery 400 is a practical, value-minded choice for Stage 320 and Xtreme 4 owners who prioritize long run time and battery longevity. With high capacity, built-in protection, and a one-year warranty, it restores portable performance reliably; just be prepared to use a Torx T20 screwdriver for installation.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this battery work in both PartyBox Stage 320 and Xtreme 4?\u003c\/strong\u003e\u003cbr\u003eYes, the pack is specified as fully compatible with PartyBox Stage 320 and Xtreme 4 portable speakers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long will the battery last on a single charge?\u003c\/strong\u003e\u003cbr\u003eThe pack is rated up to about 19 hours of playback per battery under typical conditions, thanks to its 10000 mAh \/ 74 Wh capacity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need any tools to replace the battery?\u003c\/strong\u003e\u003cbr\u003eYes, installation requires a Torx T20 screwdriver to remove screws and fit the battery; a screwdriver is not included.\u003c\/p\u003e","brand":"Sicimly","offers":[{"title":"Default Title","offer_id":48256768278747,"sku":"B0F2YTG7D7","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/719-e9RjAoL._AC_SL1500.jpg?v=1778270347","url":"https:\/\/gearmusthave.com\/products\/jbl-battery-400-replacement-battery-for-partybox-stage-320-and-xtreme","provider":"GearMustHave","version":"1.0","type":"link"}