{"product_id":"bluetti-b300k2-expansion-battery","title":"BLUETTI B300K2 Expansion Battery | 2764.8Wh LiFePO4 | For Apex 300","description":"\u003cp\u003e\u003cstrong\u003eAdd more runtime to your power system with the BLUETTI B300K2 Expansion Battery.\u003c\/strong\u003e This 2,764.8Wh automotive-grade LiFePO₄ battery block plugs into your BLUETTI Apex 300 (and other compatible stations) to dramatically extend backup time for home, RV, and off-grid setups — stack multiple units to scale capacity all the way up to \u003cstrong\u003e100kWh\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBuilt to last with EV-grade cells rated for \u003cstrong\u003e6,000+ charge cycles\u003c\/strong\u003e to 80% capacity, the B300K2 recharges to 80% in as little as 45 minutes when paired with a compatible power station. A built-in USB-A port even lets it top off phones and small devices on its own.\u003c\/p\u003e\n\u003cp\u003eRugged, stackable, and simple to connect, it’s the easy way to grow your energy reserve as your needs change — backed by a 3+1 year warranty.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2,764.8Wh\u003c\/strong\u003e automotive-grade LiFePO₄ battery (51.2V, 54Ah)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6,000+ cycles\u003c\/strong\u003e to 80% capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpand up to 100kWh\u003c\/strong\u003e when connected with the Apex 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0–80% in ~45 minutes\u003c\/strong\u003e with a compatible power station\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in USB-A port\u003c\/strong\u003e (12W) for standalone device charging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStackable, rugged design\u003c\/strong\u003e for home or mobile use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBLUETTI Apex 300, AC300, AC500, AC200L, AC200MAX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2,764.8Wh (51.2V \/ 54Ah)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBattery Chemistry\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAutomotive-grade LiFePO₄ (6,000+ cycles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Port\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 × USB-A (12W max, 5V\/2.4A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Expansion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 100kWh with Apex 300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRecharge\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0–80% in ~45 min (with compatible station)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65.04 lbs (29.5 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20.67 × 12.87 × 8.23 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 + 1 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"BLUETTI","offers":[{"title":"Default","offer_id":53183137448256,"sku":"P-B300K2-UN-GY-BL-010","price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/9611\/4240\/files\/b300k2-1.png?v=1789923997","url":"https:\/\/www.robo-mechanix.com\/products\/bluetti-b300k2-expansion-battery","provider":"Robo Mechanix","version":"1.0","type":"link"}