{"product_id":"bluetti-b300k-2-764-8wh-expansion-battery","title":"BLUETTI B300K 2,764.8Wh Expansion Battery","description":"\u003cp\u003e\u003cstrong\u003eThe BLUETTI B300K Expansion Battery\u003c\/strong\u003e is a high-capacity \u003cstrong\u003e2,764.8Wh LiFePO₄\u003c\/strong\u003e battery module designed to expand the energy storage capacity of compatible BLUETTI power stations. Featuring automotive-grade lithium iron phosphate cells, more than \u003cstrong\u003e6,000\u003c\/strong\u003e battery cycles, intelligent \u003cstrong\u003eAI-powered\u003c\/strong\u003e battery management and a built-in \u003cstrong\u003eUSB-A \u003c\/strong\u003eoutput, it provides dependable energy storage for home backup, off-grid living, RV travel, emergencies and extended outdoor power applications.\u003c\/p\u003e\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e BLUETTI\u003cbr\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e B300K\u003cbr\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Expansion Battery \/ Portable Energy Storage Battery\u003cbr\u003e\u003cstrong\u003eBattery Capacity:\u003c\/strong\u003e 2,764.8Wh\u003cbr\u003e\u003cstrong\u003eRated Battery Voltage:\u003c\/strong\u003e 51.2V\u003cbr\u003e\u003cstrong\u003eRated Battery Capacity:\u003c\/strong\u003e 54Ah\u003cbr\u003e\u003cstrong\u003eBattery Chemistry:\u003c\/strong\u003e LiFePO₄ \/ Lithium Iron Phosphate\u003cbr\u003e\u003cstrong\u003eBattery Cell Grade:\u003c\/strong\u003e Automotive-Grade\u003cbr\u003e\u003cstrong\u003eCycle Life:\u003c\/strong\u003e 6,000+ Cycles to 80% Original Capacity\u003cbr\u003e\u003cstrong\u003eBattery Management System:\u003c\/strong\u003e Intelligent AI-BMS\u003cbr\u003e\u003cstrong\u003eStandalone Power Function:\u003c\/strong\u003e Supported\u003cbr\u003e\u003cstrong\u003eUSB-A Output:\u003c\/strong\u003e 12W Maximum\u003cbr\u003e\u003cstrong\u003eCompatible Power Stations:\u003c\/strong\u003e BLUETTI Apex 300, AC200L, AC200MAX, AC300 and AC500\u003cbr\u003e\u003cstrong\u003eMaximum System Expansion:\u003c\/strong\u003e Up to 58kWh with a compatible Apex 300 configuration\u003cbr\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 3 Years + 1-Year Extended Warranty with Registration\u003cbr\u003e\u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e Some compatible power stations may require a separately sold connection cable or adapter.\u003c\/p\u003e\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e2,764.8Wh Expansion Capacity:\u003c\/strong\u003e\u003cbr\u003eAdds 2,764.8Wh of battery storage to compatible BLUETTI power stations, helping extend backup runtime for household appliances, outdoor equipment, communication devices and essential electronics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAutomotive-Grade LiFePO₄ Battery:\u003c\/strong\u003e\u003cbr\u003eUses durable lithium iron phosphate battery cells designed to provide improved thermal stability, safety and long-term reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMore Than 6,000 Battery Cycles:\u003c\/strong\u003e\u003cbr\u003eDesigned to retain approximately 80% of its original capacity after more than 6,000 charge cycles, making it suitable for frequent home backup and off-grid energy use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIntelligent AI Battery Management:\u003c\/strong\u003e\u003cbr\u003eThe integrated AI-BMS continuously manages battery operation and helps protect against abnormal voltage, current, temperature and other potentially unsafe operating conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExpandable Energy Storage:\u003c\/strong\u003e\u003cbr\u003eAllows compatible BLUETTI systems to be expanded as energy requirements increase, supporting applications ranging from portable backup power to larger home and off-grid energy configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUp to 58kWh with Apex 300:\u003c\/strong\u003e\u003cbr\u003eWhen used within a supported Apex 300 configuration, multiple B300K batteries can expand total energy storage to as much as 58kWh for longer backup duration and higher energy demands.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFast Battery Charging:\u003c\/strong\u003e\u003cbr\u003eWhen paired with a compatible BLUETTI AC300 or AC500 system, the B300K can recharge from 0% to approximately 80% in as little as 45 minutes under suitable operating conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStandalone USB-A Power:\u003c\/strong\u003e\u003cbr\u003eThe built-in USB-A output allows the B300K to function as a standalone power source for compatible smartphones, tablets, portable fans, lights and other USB-powered devices.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDurable Aluminium Housing:\u003c\/strong\u003e\u003cbr\u003eFeatures a strong aluminium enclosure designed to protect the internal battery components during home, travel and off-grid use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced Thermal Management:\u003c\/strong\u003e\u003cbr\u003eIntegrated cooling components help manage operating temperature and support stable battery performance during charging and discharging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFlexible Power Station Compatibility:\u003c\/strong\u003e\u003cbr\u003eWorks with multiple compatible BLUETTI power stations, allowing users to upgrade or expand existing BLUETTI energy systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReliable Emergency Backup:\u003c\/strong\u003e\u003cbr\u003eProvides additional stored energy during blackouts, extreme weather, remote travel and other situations where grid electricity may be limited or unavailable.\u003c\/p\u003e\n\u003ch3\u003eMechanical Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Expansion Battery Module\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 52.5 × 32.7 × 20.9cm\u003cbr\u003e\u003cstrong\u003eDimensions in Inches:\u003c\/strong\u003e 20.67 × 12.87 × 8.23in\u003cbr\u003e\u003cstrong\u003eNet Weight:\u003c\/strong\u003e 29.5kg \/ 65.04lb\u003cbr\u003e\u003cstrong\u003eHousing Material:\u003c\/strong\u003e Durable Aluminium Casing\u003cbr\u003e\u003cstrong\u003eInstallation Type:\u003c\/strong\u003e Stackable battery connection with compatible BLUETTI power stations\u003cbr\u003e\u003cstrong\u003ePortability:\u003c\/strong\u003e Transportable expansion battery design\u003cbr\u003e\u003cstrong\u003eCooling System:\u003c\/strong\u003e Integrated cooling components\u003cbr\u003e\u003cstrong\u003eConnection Type:\u003c\/strong\u003e BLUETTI expansion battery connection\u003cbr\u003e\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e Indoor backup systems, RV installations, protected outdoor setups and off-grid energy systems\u003c\/p\u003e\n\u003ch3\u003eWarranty Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStandard Product Warranty:\u003c\/strong\u003e 3 Years\u003cbr\u003e\u003cstrong\u003eExtended Warranty:\u003c\/strong\u003e Additional 1 Year Available with Product Registration\u003cbr\u003e\u003cstrong\u003eTotal Available Warranty:\u003c\/strong\u003e Up to 4 Years\u003cbr\u003e\u003cstrong\u003eCustomer Support:\u003c\/strong\u003e Lifetime Customer Support\u003cbr\u003e\u003cstrong\u003eBattery Cycle Rating:\u003c\/strong\u003e More Than 6,000 Cycles to 80% Capacity\u003cbr\u003e\u003cstrong\u003eCompatibility Requirement:\u003c\/strong\u003e Use only with compatible BLUETTI power stations, approved cables and supported system configurations.\u003cbr\u003e\u003cstrong\u003eStorage Recommendation:\u003c\/strong\u003e Recharge the battery periodically during long-term storage and avoid leaving it fully discharged for extended periods.\u003cbr\u003e\u003cstrong\u003eInstallation Requirement:\u003c\/strong\u003e Keep the battery in a dry, ventilated and stable location away from excessive heat, moisture and direct exposure to severe weather.\u003c\/p\u003e\n\u003ch3\u003eElectrical Performance\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBattery Specifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBattery Capacity:\u003c\/strong\u003e 2,764.8Wh\u003cbr\u003e\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e 51.2V\u003cbr\u003e\u003cstrong\u003eRated Capacity:\u003c\/strong\u003e 54Ah\u003cbr\u003e\u003cstrong\u003eBattery Chemistry:\u003c\/strong\u003e LiFePO₄ \/ Lithium Iron Phosphate\u003cbr\u003e\u003cstrong\u003eBattery Cell Type:\u003c\/strong\u003e Automotive-Grade Square LiFePO₄ Cells\u003cbr\u003e\u003cstrong\u003eCycle Life:\u003c\/strong\u003e 6,000+ Cycles to 80% Original Capacity\u003cbr\u003e\u003cstrong\u003eBattery Management:\u003c\/strong\u003e Intelligent AI-BMS\u003cbr\u003e\u003cstrong\u003eStandalone Operation:\u003c\/strong\u003e Supported through USB-A output\u003c\/p\u003e\n\u003ch3\u003eOutput Specifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUSB-A Output:\u003c\/strong\u003e 5V \/ 2.4A\u003cbr\u003e\u003cstrong\u003eMaximum USB-A Power:\u003c\/strong\u003e 12W\u003cbr\u003e\u003cstrong\u003eSupported Devices:\u003c\/strong\u003e Smartphones, tablets, portable fans, lights and other compatible USB-powered devices\u003cbr\u003e\u003cstrong\u003ePrimary Battery Output:\u003c\/strong\u003e Expansion battery connection for compatible BLUETTI power stations\u003cbr\u003e\u003cstrong\u003eAC Output:\u003c\/strong\u003e Not available directly from the B300K\u003cbr\u003e\u003cstrong\u003eUSB-C Output:\u003c\/strong\u003e Not available\u003cbr\u003e\u003cstrong\u003eDC Car Outlet:\u003c\/strong\u003e Not available\u003c\/p\u003e\n\u003ch3\u003eCharging Performance\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFast-Charging Capability:\u003c\/strong\u003e Supported when connected to compatible BLUETTI systems\u003cbr\u003e\u003cstrong\u003e0–80% Charging Time:\u003c\/strong\u003e Approximately 45 Minutes with AC300 or AC500 under suitable conditions\u003cbr\u003e\u003cstrong\u003eCharging Management:\u003c\/strong\u003e Controlled through the connected BLUETTI power station and integrated BMS\u003cbr\u003e\u003cstrong\u003eCharging Methods:\u003c\/strong\u003e Dependent on the connected power station’s supported AC, solar, generator or vehicle charging options\u003cbr\u003e\u003cstrong\u003eStandalone Direct Charging:\u003c\/strong\u003e Requires a compatible BLUETTI charging system or supported accessory configuration\u003c\/p\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Products:\u003c\/strong\u003e BLUETTI Apex 300, AC200L, AC200MAX, AC300 and AC500\u003cbr\u003e\u003cstrong\u003ePrimary Connection Cable:\u003c\/strong\u003e BLUETTI CA90 Battery Connection Cable\u003cbr\u003e\u003cstrong\u003eAC500 Connection Requirement:\u003c\/strong\u003e A P090D-to-P150D cable is required and sold separately.\u003cbr\u003e\u003cstrong\u003eStandalone USB Operation:\u003c\/strong\u003e Supported through the built-in USB-A output\u003cbr\u003e\u003cstrong\u003eSystem Expansion:\u003c\/strong\u003e Multiple batteries may be supported depending on the connected power station and system configuration.\u003cbr\u003e\u003cstrong\u003eApex 300 Expansion:\u003c\/strong\u003e Supports compatible configurations providing up to approximately 58kWh of total energy storage.\u003cbr\u003e\u003cstrong\u003eCompatibility Limitation:\u003c\/strong\u003e The B300K cannot function as a complete AC power station by itself because it does not include an integrated AC inverter.\u003cbr\u003e\u003cstrong\u003eCable Requirement:\u003c\/strong\u003e Always use BLUETTI-approved battery cables and adapters designed for the connected power station.\u003c\/p\u003e\n\u003ch3\u003eSmart Energy Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupports expandable BLUETTI battery storage\u003c\/li\u003e\n\u003cli\u003eProvides 2,764.8Wh of additional battery capacity\u003c\/li\u003e\n\u003cli\u003eUses automotive-grade LiFePO₄ battery cells\u003c\/li\u003e\n\u003cli\u003eProvides more than 6,000 battery cycles\u003c\/li\u003e\n\u003cli\u003eUses intelligent AI-powered battery management\u003c\/li\u003e\n\u003cli\u003eSupports fast charging with compatible BLUETTI systems\u003c\/li\u003e\n\u003cli\u003eSupports approximately 0–80% charging in 45 minutes with AC300 or AC500\u003c\/li\u003e\n\u003cli\u003eSupports standalone USB-A device charging\u003c\/li\u003e\n\u003cli\u003eProvides up to 12W USB-A output\u003c\/li\u003e\n\u003cli\u003eSupports compatible home backup power systems\u003c\/li\u003e\n\u003cli\u003eSupports compatible off-grid energy configurations\u003c\/li\u003e\n\u003cli\u003eSupports Apex 300 system expansion up to approximately 58kWh\u003c\/li\u003e\n\u003cli\u003eFeatures durable aluminium battery housing\u003c\/li\u003e\n\u003cli\u003eIncludes integrated thermal management components\u003c\/li\u003e\n\u003cli\u003eSupports modular system expansion as energy needs grow\u003c\/li\u003e\n\u003cli\u003eDesigned for long-term backup and frequent battery use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHome backup power systems\u003c\/li\u003e\n\u003cli\u003ePower outage preparedness\u003c\/li\u003e\n\u003cli\u003eOff-grid homes and cabins\u003c\/li\u003e\n\u003cli\u003eRV and caravan energy storage\u003c\/li\u003e\n\u003cli\u003eCamping and outdoor adventures\u003c\/li\u003e\n\u003cli\u003eRemote work locations\u003c\/li\u003e\n\u003cli\u003eEmergency communication backup\u003c\/li\u003e\n\u003cli\u003eRefrigerator and freezer backup\u003c\/li\u003e\n\u003cli\u003eMedical device backup with a compatible power station\u003c\/li\u003e\n\u003cli\u003eLighting and small appliance backup\u003c\/li\u003e\n\u003cli\u003eMobile business operations\u003c\/li\u003e\n\u003cli\u003eOutdoor events\u003c\/li\u003e\n\u003cli\u003eSolar energy storage\u003c\/li\u003e\n\u003cli\u003eExtended road trips\u003c\/li\u003e\n\u003cli\u003eDisaster preparedness\u003c\/li\u003e\n\u003cli\u003ePortable USB device charging\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIncluded Accessories\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBLUETTI B300K Expansion Battery × 1\u003c\/li\u003e\n\u003cli\u003eBLUETTI CA90 Battery Connection Cable × 1\u003c\/li\u003e\n\u003cli\u003eUser Manual × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAdditional cables or adapters may be required for certain compatible BLUETTI power stations. The P090D-to-P150D cable required for AC500 connection is sold separately.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eSystem Benefits When Paired with Compatible BLUETTI Power Stations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAdds 2,764.8Wh of usable battery storage to a compatible system\u003c\/li\u003e\n\u003cli\u003eExtends backup runtime for essential household appliances and electronics\u003c\/li\u003e\n\u003cli\u003eHelps reduce reliance on grid electricity during outages\u003c\/li\u003e\n\u003cli\u003eSupports storage of renewable energy generated by compatible solar panels\u003c\/li\u003e\n\u003cli\u003eAllows battery capacity to expand as household or off-grid energy requirements grow\u003c\/li\u003e\n\u003cli\u003eSupports compatible BLUETTI systems including Apex 300, AC200L, AC200MAX, AC300 and AC500\u003c\/li\u003e\n\u003cli\u003eProvides more than 6,000 battery cycles for long-term energy storage\u003c\/li\u003e\n\u003cli\u003eSupports fast recharging when paired with suitable BLUETTI power stations\u003c\/li\u003e\n\u003cli\u003eProvides standalone USB-A charging for small electronic devices\u003c\/li\u003e\n\u003cli\u003eImproves energy security during outages and emergencies\u003c\/li\u003e\n\u003cli\u003eSupports extended RV, caravan and remote travel\u003c\/li\u003e\n\u003cli\u003eProvides quiet and emission-free stored energy\u003c\/li\u003e\n\u003cli\u003eAllows selected Apex 300 configurations to scale up to approximately 58kWh\u003c\/li\u003e\n\u003cli\u003eHelps maintain essential power for refrigeration, lighting, communication and other critical devices\u003c\/li\u003e\n\u003cli\u003eSupports longer off-grid power use when paired with compatible BLUETTI power stations, solar panels and charging accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eContact PVtoEV for compatibility guidance and complete BLUETTI power station, expansion battery and solar charging recommendations.\u003c\/em\u003e\u003c\/p\u003e","brand":"pvtoev","offers":[{"title":"Default Title","offer_id":41241412010056,"sku":null,"price":0.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0575\/5407\/5720\/files\/B300K_1x_fa81ef5e-3f6e-4c48-959e-c731beabe247.webp?v=1785313854","url":"https:\/\/pvtoev.com.au\/products\/bluetti-b300k-2-764-8wh-expansion-battery","provider":"pvtoev","version":"1.0","type":"link"}