{"product_id":"ecoflow-delta-pro-ultra-series-smart-extra-battery","title":"EcoFlow DELTA Pro Ultra Series Smart Extra Battery","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThis is the way to add serious capacity to a DELTA Pro Ultra system without buying a whole new unit — the Smart Extra Battery adds an extra 6,144Wh, compatible with both the DELTA Pro Ultra and DELTA Pro Ultra X inverters. It's plug-and-play, no setup or electrician needed, and you can monitor and control everything right from the EcoFlow app.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eSafety is built in at every level: EV-grade LFP cells, a dual battery management system, and a 3-level safety architecture, so you're adding capacity without adding risk. It's backed by a full 5-year warranty.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eKey specs: adds 6,144Wh of expandable capacity; compatible with DELTA Pro Ultra and DELTA Pro Ultra X inverters; plug-and-play, no setup required; EcoFlow app monitoring and control; EV-grade LFP cells with dual BMS and 3-level safety architecture; 5-year full warranty.\u003c\/p\u003e","brand":"GZEF - ECOFLOW","offers":[{"title":"Default Title","offer_id":49511684636900,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6551\/4468\/files\/CleanShot2026-07-26at18.33.35.jpg?v=1785126855","url":"https:\/\/batterybill.com\/products\/ecoflow-delta-pro-ultra-series-smart-extra-battery","provider":"Battery Bill's","version":"1.0","type":"link"}