{"title":"Accessories \u0026 Expansion Batteries","description":"\u003cp\u003eExpand, connect, and customize your backup power system with compatible batteries, cables, adapters, mounting equipment, and other accessories. Explore components designed to increase capacity, improve connectivity, and help you get more from compatible home and portable power systems.\u003c\/p\u003e","products":[{"product_id":"bluetti-b300k-2-764-8wh-expansion-battery","title":"BLUETTI B300K 2,764.8Wh Expansion Battery","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eExpand Your Energy Storage. Extend Your Backup Power.\u003c\/strong\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe BLUETTI B300K Expansion Battery adds \u003cstrong\u003e2,764.8Wh of energy storage\u003c\/strong\u003e to compatible BLUETTI power systems, giving you a straightforward way to increase available runtime without replacing your existing system.\u003c\/p\u003e\n\u003cp\u003eBuilt with durable \u003cstrong\u003eLiFePO₄ (LFP) battery chemistry\u003c\/strong\u003e, the B300K is designed for long-term energy storage applications ranging from emergency home backup to RV and off-grid power.\u003c\/p\u003e\n\u003cp\u003eIts modular design allows compatible BLUETTI systems to grow alongside your energy needs. Pair the B300K with the \u003cstrong\u003eBLUETTI Apex 300\u003c\/strong\u003e or other supported BLUETTI power systems to increase total battery capacity and keep essential equipment operating longer when grid power isn't available.\u003c\/p\u003e\n\u003cp\u003eAt approximately \u003cstrong\u003e65.3 lb\u003c\/strong\u003e, the B300K packages substantial additional storage into a compact expansion module designed to integrate directly with compatible BLUETTI equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e 2,764.8Wh capacity • LiFePO₄ battery chemistry • modular expansion design • compatible with BLUETTI Apex 300 and select BLUETTI systems • suitable for home backup and off-grid applications • approximately 65.3 lb • compact stackable design.\u003c\/p\u003e","brand":"BLUETTI","offers":[{"title":"Default Title","offer_id":64632260100467,"sku":null,"price":1200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/5889\/2659\/files\/Screenshot2026-09-11061733.png?v=1789125476"},{"product_id":"ecoflow-delta-pro-3-smart-extra-battery","title":"EcoFlow DELTA Pro 3 Smart Extra Battery","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eMore Stored Energy for Your DELTA Pro 3 System\u003c\/strong\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe EcoFlow DELTA Pro 3 Smart Extra Battery expands the energy storage capacity of a compatible DELTA Pro 3 system by an additional \u003cstrong\u003e4,096Wh (4.096kWh)\u003c\/strong\u003e, providing longer runtime for home backup, off-grid power, and other high-demand applications.\u003c\/p\u003e\n\u003cp\u003eBuilt with long-lasting \u003cstrong\u003eLiFePO₄ (LFP) battery chemistry\u003c\/strong\u003e, the Smart Extra Battery is designed for approximately \u003cstrong\u003e4,000 cycles before reaching 80% of its original capacity\u003c\/strong\u003e. Its integrated design allows it to connect directly with the DELTA Pro 3 without requiring a separate inverter or power station.\u003c\/p\u003e\n\u003cp\u003eA DELTA Pro 3 begins with 4.096kWh of storage and can be expanded with additional battery capacity, allowing homeowners to build a larger backup system as their power requirements grow.\u003c\/p\u003e\n\u003cp\u003eThe Smart Extra Battery is particularly useful for extending runtime during longer outages, increasing overnight energy reserves, or adding storage to systems incorporating solar charging.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e 4,096Wh capacity • LiFePO₄ battery chemistry • approximately 4,000 cycles to 80% capacity • direct DELTA Pro 3 integration • modular energy expansion • suitable for home backup and off-grid applications • solar-system compatible when connected through the DELTA Pro 3.\u003c\/p\u003e","brand":"Ecoflow","offers":[{"title":"Default Title","offer_id":64632261771635,"sku":null,"price":1899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/5889\/2659\/files\/Screenshot2026-09-11061957.png?v=1789125620"},{"product_id":"ecoflow-50-amp-hub","title":"EcoFlow 50 Amp Hub","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003e\u003cstrong\u003eCombine Two DELTA Pro 3 Systems for Serious 120\/240V Backup Power\u003c\/strong\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe EcoFlow 50 Amp Hub is designed to connect \u003cstrong\u003etwo DELTA Pro 3 portable power stations\u003c\/strong\u003e, creating a higher-output system capable of supplying both \u003cstrong\u003e120V and 240V AC power\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWhen paired with two DELTA Pro 3 units, the 50 Amp Hub enables up to \u003cstrong\u003e8,000W of combined AC output\u003c\/strong\u003e, making the system better suited for demanding backup applications and equipment requiring 240V power.\u003c\/p\u003e\n\u003cp\u003eThe hub provides a streamlined way to combine compatible EcoFlow power stations without building a traditional permanently installed battery system. This makes it particularly useful for homeowners looking for a modular backup-power configuration that can expand as their energy needs grow.\u003c\/p\u003e\n\u003cp\u003eThe 50 Amp Hub includes the required EcoFlow connection cables for linking two compatible DELTA Pro 3 units to the hub.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e Connects two DELTA Pro 3 units • up to 8,000W combined AC output • 120\/240V output capability • modular backup-power configuration • compatible with EcoFlow DELTA Pro 3 • connection cables included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility Notice:\u003c\/strong\u003e This accessory requires compatible EcoFlow equipment. Verify system configuration, electrical requirements, and equipment compatibility before purchase or installation.\u003c\/p\u003e","brand":"Front Range Fortress","offers":[{"title":"Default Title","offer_id":64632262525299,"sku":null,"price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/5889\/2659\/files\/Screenshot2026-09-11062246.png?v=1789125786"}],"url":"https:\/\/frontrangefortress.com\/collections\/accessories-expansion-batteries.oembed","provider":"Front Range Fortress","version":"1.0","type":"link"}