{"product_id":"bluetti-b300k-expansion-battery","title":"BLUETTI B300K Expansion Battery | 2,764.8Wh","description":"\u003cp\u003eThe B300K is the easiest way to add real runtime to a compatible BLUETTI backup system. Use it when the base power station is right, but the outage, workday, or off-grid stay is longer than one battery can comfortably cover.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2,764.8Wh added capacity:\u003c\/strong\u003e Extends runtime for home backup, cabins, RVs, and remote work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLiFePO4 battery chemistry:\u003c\/strong\u003e Designed for long cycle life and safer storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorks with Apex 300:\u003c\/strong\u003e Adds modular capacity without rebuilding the whole system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6,000+ life cycles:\u003c\/strong\u003e Built for regular use, not just emergency shelf storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandalone USB-A output:\u003c\/strong\u003e Can charge small essentials directly when needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpandable backup:\u003c\/strong\u003e Stack multiple batteries for larger energy storage systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Capacity\u003c\/th\u003e\n\u003ctd\u003e2,764.8Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBattery Type\u003c\/th\u003e\n\u003ctd\u003eLiFePO4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCycle Life\u003c\/th\u003e\n\u003ctd\u003e6,000+ cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003ctd\u003eApex 300 and compatible BLUETTI systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStandalone Output\u003c\/th\u003e\n\u003ctd\u003eUSB-A port for small devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse Cases\u003c\/th\u003e\n\u003ctd\u003eRuntime expansion, home backup, RV power, off-grid power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e3+1 years with registration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eB300K expansion battery\u003c\/li\u003e\n\u003cli\u003eBattery connection cable\u003c\/li\u003e\n\u003cli\u003eUser documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatible Add-Ons\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBLUETTI Apex 300\u003c\/li\u003e\n\u003cli\u003eBLUETTI Charger 2\u003c\/li\u003e\n\u003cli\u003eHub D1 power hub\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BLUETTI","offers":[{"title":"Default Title","offer_id":48585098952959,"sku":"B300K-UN-GY-BL-SPFUS-00","price":1099.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0815\/5450\/5983\/files\/166_1x_309ac2fc-1780-4c30-9bee-1455a05a335b.png?v=1779818688","url":"https:\/\/homesteadheavy.com\/products\/bluetti-b300k-expansion-battery","provider":"Homestead Heavy","version":"1.0","type":"link"}