{"product_id":"eg4-wallmount-indoor-battery-ess-48v-314ah-16kwh-ul9540-eg4-flexboss21-hybrid-inverter","title":"EG4-WallMount Indoor Battery ESS | 48V 314Ah | 16kWh | UL9540 | EG4 FlexBOSS21 Hybrid Inverter","description":"\u003cp\u003e\u003cstrong\u003e\u003cmeta charset=\"UTF-8\"\u003e1 x 48V 16 kWh EG4 WallMount Indoor 314Ah (FEWMT-48161-G1)\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eINCLUDED FREE:\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e1 x Mounting Bracket\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x Set: 6x Expansion Bolts\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x 5 ft Battery to Inverter Comm Cable\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e2 x 3.3 ft Red \u0026amp; Black Battery to Inverter Power Cables\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x Indoor Conduit box (CNT100)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x Set: 9x Conduit box Hole Covers\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x Set: 9x Grommets between battery and conduit box\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 x EG4® FLEXBOSS21 Hybrid Inverter (INV027\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading has-text-align-center\" id=\"h-introducing-the-eg4-wallmount-indoor-battery\"\u003eIntroducing The EG4 WallMount Indoor Battery\u003c\/h2\u003e\n\u003cdiv class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7467d132 wp-block-columns-is-layout-flex\"\u003e\n\u003cdiv class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"\u003e\n\u003ch2 class=\"wp-block-heading\" id=\"h-key-features\"\u003e\n\u003cstrong\u003eKey Features\u003c\/strong\u003e:\u003c\/h2\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eCross-Compatible with Other EG4 Models: Seamlessly integrates with existing\u003cbr\u003eEG4 battery systems for flexible scaling and expanded storage capacity. (Note: UL9540 Certified only with Flexboss 18 \u0026amp; Flexboss 21)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eHybrid Wall or Floor Mount Design: Flexible installation options with a durable,\u003cbr\u003espace-saving enclosure (IP20 rated).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eHigh-Capacity Storage: 16kWh nominal energy and 314Ah capacity for\u003cbr\u003ereliable, high-output performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eAuto-ID Technology: Automatically recognizes and syncs new batteries during\u003cbr\u003einstallation, simplifying system setup and configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-1024x1024.png\" alt=\"\" class=\"wp-image-192614\" srcset=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-1024x1024.png 1024w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-300x300.png 300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-150x150.png 150w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-768x768.png 768w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-1536x1536.png 1536w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-2048x2048.png 2048w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-990x990.png 990w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-441x441.png 441w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-813x813.png 813w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-1300x1300.png 1300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-2-32x32.png 32w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-11ebca16 wp-block-columns-is-layout-flex\"\u003e\n\u003cdiv class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-1024x1024.png\" alt=\"\" class=\"wp-image-192146\" srcset=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-1024x1024.png 1024w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-300x300.png 300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-150x150.png 150w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-768x768.png 768w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-1536x1536.png 1536w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-2048x2048.png 2048w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-990x990.png 990w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-441x441.png 441w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-813x813.png 813w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-1300x1300.png 1300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG1-32x32.png 32w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\u003e\u003c\/figure\u003e\n\u003ch2 class=\"wp-block-heading\" id=\"h-latest-bms-technology\"\u003eLatest BMS Technology\u003c\/h2\u003e\n\u003cp\u003eThird-Generation BMS: Provides advanced monitoring, improved balancing precision, and faster response times for greater safety and system efficiency.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-1024x1024.png\" alt=\"\" class=\"wp-image-192147\" srcset=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-1024x1024.png 1024w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-300x300.png 300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-150x150.png 150w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-768x768.png 768w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-1536x1536.png 1536w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-2048x2048.png 2048w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-990x990.png 990w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-441x441.png 441w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-813x813.png 813w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-1300x1300.png 1300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Battery-indoor-Flexboss-18-1-1-32x32.png 32w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\u003e\u003c\/figure\u003e\n\u003ch2 class=\"wp-block-heading\" id=\"h-all-weather-self-heating\"\u003eAll-Weather Self-Heating\u003c\/h2\u003e\n\u003cp\u003eSelf-Heating Function: Maintains optimal performance and battery health in cold environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-1024x1024.png\" alt=\"\" class=\"wp-image-192143\" srcset=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-1024x1024.png 1024w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-300x300.png 300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-150x150.png 150w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-768x768.png 768w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-1536x1536.png 1536w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-2048x2048.png 2048w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-990x990.png 990w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-441x441.png 441w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-813x813.png 813w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-1300x1300.png 1300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-Indoor-Battery-IMG3-32x32.png 32w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\u003e\u003c\/figure\u003e\n\u003ch2 class=\"wp-block-heading\" id=\"h-your-personal-power-house\"\u003eYour Personal Power House\u003c\/h2\u003e\n\u003cp\u003e200A Continuous Output \/ 12.8kW Peak Power: Supports heavy household loads and seamless backup operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cfigure class=\"wp-block-image alignfull size-large has-custom-border is-style-rounded\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"420\" src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-1024x420.png\" alt=\"\" class=\"wp-image-192301\" srcset=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-1024x420.png 1024w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-300x123.png 300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-768x315.png 768w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-1536x630.png 1536w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-2048x840.png 2048w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-990x406.png 990w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-441x181.png 441w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-813x334.png 813w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-1300x533.png 1300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/EG4-314Ah-150x62.png 150w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\u003e\u003c\/figure\u003e\n\u003cfigure class=\"wp-block-image alignfull size-large has-custom-border is-style-rounded\"\u003e\u003cimg loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"420\" src=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-1024x420.png\" alt=\"\" class=\"wp-image-192292\" srcset=\"https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-1024x420.png 1024w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-300x123.png 300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-768x315.png 768w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-1536x630.png 1536w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-2048x840.png 2048w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-990x406.png 990w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-441x181.png 441w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-813x334.png 813w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-1300x533.png 1300w, https:\/\/bigbattery.com\/wp-content\/uploads\/2025\/11\/Product-Infographics-2-150x62.png 150w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\"\u003e\u003c\/figure\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Big Battery","offers":[{"title":"Default Title","offer_id":45171959365686,"sku":"K0210","price":7445.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/1275\/7558\/files\/FLEXBOSS21-EG4-314Ah.png?v=1774626990","url":"https:\/\/stellarstarsolarsolutions.com\/products\/eg4-wallmount-indoor-battery-ess-48v-314ah-16kwh-ul9540-eg4-flexboss21-hybrid-inverter","provider":"Stellar Star Solar Solutions","version":"1.0","type":"link"}