{"product_id":"fortress-eflex-max-5-4kwh-51-2v-battery","title":"Fortress eFlex Max - 5.4kWh 51.2V Battery","description":"\u003ch2\u003eFortress eFlex Max 5.4kWh 51.2V LFP Battery\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eFortress eFlex Max\u003c\/strong\u003e is a 5.4kWh lithium iron phosphate (LFP) battery designed for residential and commercial solar energy storage. With a 51.2V nominal voltage and IP65 outdoor rating, it offers flexible installation options. The modular design allows up to 30 batteries in parallel for scalable capacity, and the built-in battery management system (BMS) ensures safe, reliable operation.\u003c\/p\u003e\u003ch3\u003eKey Features:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e5.4kWh usable capacity (105Ah at 51.2V)\u003c\/li\u003e\n\u003cli\u003eLithium Iron Phosphate (LFP) chemistry - safest lithium technology\u003c\/li\u003e\n\u003cli\u003e51.2V nominal voltage (16S1P configuration)\u003c\/li\u003e\n\u003cli\u003eIP65 rated for outdoor installation\u003c\/li\u003e\n\u003cli\u003eUp to 30 units in parallel for scalable capacity (162kWh max)\u003c\/li\u003e\n\u003cli\u003eBuilt-in Battery Management System (BMS)\u003c\/li\u003e\n\u003cli\u003eWall-mount bracket included\u003c\/li\u003e\n\u003cli\u003e10-year warranty\u003c\/li\u003e\n\u003cli\u003eCAN bus and RS485 communication\u003c\/li\u003e\n\u003cli\u003eCompatible with leading inverters\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eShop the Fortress eFlex Max battery at Portlandia Electric Supply for competitive pricing and expert solar storage advice.\u003c\/p\u003e","brand":"Fortress","offers":[{"title":"Default Title","offer_id":44187513651334,"sku":"PES-FFS-EFLEXMAX","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0613\/5188\/6982\/files\/eFlex_Max_5.4_kWh_1.png?v=1785070027","url":"https:\/\/www.portlandiaelectric.supply\/products\/fortress-eflex-max-5-4kwh-51-2v-battery","provider":"Portlandia Electric Supply","version":"1.0","type":"link"}