{"product_id":"bluetti-b300k-2764-8-expansion-battery","title":"Bluetti B300K 2764.8Wh Expansion Battery","description":"\u003ch2 id=\"bluetti-b300k-expansion-battery-2-764.8-wh\" style=\"text-align: center;\"\u003eBluetti B300K Expansion Battery (2 764.8 Wh)\u003c\/h2\u003e \u003cp\u003eThe B300K is a modular expansion battery that boosts the capacity of Bluetti power stations such as the AC200L, AC200MAX, AC300 and AC500. Its \u003cstrong\u003e2 764.8 Wh\u003c\/strong\u003e LiFePO₄ pack delivers over \u003cstrong\u003e4 000 life cycles\u003c\/strong\u003e, providing reliable backup during outages. When paired with the AC500, it allows systems to reach \u003cstrong\u003e16 588 Wh\u003c\/strong\u003e for off‑grid or home backup needs. Automotive‑grade LiFePO₄ cells offer enhanced safety, and the battery features a USB‑A port for standalone device charging. A \u003cstrong\u003e3+1‑year warranty\u003c\/strong\u003e underscores long‑term reliability.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eKey specifications\u003c\/strong\u003e\u003c\/p\u003e \u003ctable style=\"width: 100%;\"\u003e \u003cthead\u003e \u003ctr\u003e \u003cth style=\"width: 25%;\"\u003eSpec\u003c\/th\u003e \u003cth style=\"width: 75%;\"\u003eValue\u003c\/th\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e \u003ctd\u003eModel\u003c\/td\u003e \u003ctd\u003eB300K\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBattery capacity\u003c\/td\u003e \u003ctd\u003e2 764.8 Wh (51.2 V, 54 Ah), expandable to 16 588 Wh with AC500\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBattery type\u003c\/td\u003e \u003ctd\u003eLiFePO₄ (Lithium Iron Phosphate)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eLife cycles\u003c\/td\u003e \u003ctd\u003e4 000+ cycles to 80 % original capacity\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCompatibility\u003c\/td\u003e \u003ctd\u003eAC200L, AC200MAX, AC300, AC500 and future modules\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eUSB‑A output\u003c\/td\u003e \u003ctd\u003e12 W max (5 V \/ 2.4 A)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eBuilt‑in port\u003c\/td\u003e \u003ctd\u003eUSB‑A for charging small devices\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eNet weight\u003c\/td\u003e \u003ctd\u003eApprox. 29.5 kg (65.04 lbs)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e \u003ctd\u003e525 × 327 × 209 mm (20.67 × 12.87 × 8.23 in)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCharging temperature\u003c\/td\u003e \u003ctd\u003e0 °C to 40 °C (32 °F to 104 °F)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDischarging temperature\u003c\/td\u003e \u003ctd\u003e−20 °C to 40 °C (−4 °F to 104 °F)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eStorage temperature\u003c\/td\u003e \u003ctd\u003eUp to 1 month: −20 °C to 40 °C (−4 °F to 104 °F); up to 6 months: −20 °C to 25 °C (−4 °F to 77 °F)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eWorking humidity\u003c\/td\u003e \u003ctd\u003e5 % to 95 % RH\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eCharging current\u003c\/td\u003e \u003ctd\u003e60 A max (may decrease outside specified temperatures)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eDischarging current\u003c\/td\u003e \u003ctd\u003e70 A max\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eExpansion ports\u003c\/td\u003e \u003ctd\u003e2 × expansion port (58.4 V DC, 90 A max)\u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003eWarranty\u003c\/td\u003e \u003ctd\u003e3 + 1 years\u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIn The Box:\u003c\/strong\u003e\u003c\/p\u003e \u003ch2 id=\"bluetti-b300k-expansion-battery-2-764.8-wh\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0579\/7927\/3414\/files\/IN_THE_BOX_1500x_f8cad192-7f22-4169-b5f9-f294ad3307cb.webp?v=1759683790\" alt=\"\"\u003e\u003c\/h2\u003e \u003cp\u003e\u003cstrong\u003eMaximise your Bluetti setup. Add the B300K expansion battery to your Energian basket and unlock bigger capacity with a robust 3+1‑year warranty.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Bluetti","offers":[{"title":"Default Title","offer_id":54909233234259,"sku":"B300K","price":480.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1076\/9324\/4755\/files\/B300K_1x_2000x_a3f3f3e7-67bf-4029-b9eb-0fe7d34cbda3.webp?v=1789038831","url":"https:\/\/progradewarehouse.com\/products\/bluetti-b300k-2764-8-expansion-battery","provider":"PRO GRADE WAREHOUSE","version":"1.0","type":"link"}