{"product_id":"sigenergy-sigenstack-sub-base-unit-0-5c-sig-stack-base-sub-0-5c-stack-expansion-c-i-battery","title":"Sigenergy SigenStack SUB Base Unit 0.5C | Stack Expansion C\u0026I Battery","description":"\u003cstyle\u003e\n.qh-pd, .qh-pd *::before, .qh-pd *::after { box-sizing: border-box; margin: 0; padding: 0; }\n.qh-pd { font-family: inherit; font-size: 16px; line-height: 1.65; color: #1a1a2e; }\n.qh-pd .badge-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 1.2rem; }\n.qh-pd .badge { display: inline-block; font-size: 11px; font-weight: 700; border-radius: 4px; padding: 3px 9px; letter-spacing: 0.04em; text-transform: uppercase; }\n.qh-pd .b-orange { background: #e8720c; color: #fff; }\n.qh-pd .b-navy   { background: #1a1a2e; color: #fff; }\n.qh-pd .b-green  { background: #1b7a40; color: #fff; }\n.qh-pd .b-blue   { background: #1565c0; color: #fff; }\n.qh-pd .b-teal   { background: #006064; color: #fff; }\n.qh-pd .b-purple { background: #6a1b9a; color: #fff; }\n.qh-pd .b-red    { background: #b71c1c; color: #fff; }\n.qh-pd .b-grey   { background: #555;    color: #fff; }\n.qh-pd .prod-desc { font-size: 15.5px; color: #2a2a2a; margin-bottom: 1.4rem; line-height: 1.75; }\n.qh-pd .feat-list { list-style: none; margin-bottom: 1.4rem; padding: 0; }\n.qh-pd .feat-list li { padding: 4px 0 4px 20px; position: relative; font-size: 15px; }\n.qh-pd .feat-list li::before { content: \"✓\"; position: absolute; left: 0; color: #e8720c; font-weight: 700; }\n.qh-pd .section-label { font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: #888; margin-bottom: 0.6rem; margin-top: 1.6rem; }\n.qh-pd .table-scroll { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin-bottom: 1.5rem; border-radius: 8px; box-shadow: 0 1px 4px rgba(0,0,0,0.08); }\n.qh-pd .variant-table { width: 100%; border-collapse: collapse; font-size: 13px; min-width: 480px; }\n.qh-pd .variant-table thead tr { background: #1a1a2e; color: #fff; }\n.qh-pd .variant-table th { padding: 9px 12px; text-align: left; font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 700; white-space: nowrap; }\n.qh-pd .variant-table td { padding: 9px 12px; border-bottom: 1px solid #eee; vertical-align: top; }\n.qh-pd .variant-table tr:last-child td { border-bottom: none; }\n.qh-pd .variant-table tr:nth-child(even) td { background: #faf8f4; }\n.qh-pd .variant-table tr:nth-child(odd)  td { background: #fff; }\n.qh-pd .sku  { font-family: 'Courier New', monospace; font-size: 11.5px; background: #f0f0f0; padding: 2px 5px; border-radius: 3px; word-break: break-all; display: inline-block; }\n.qh-pd .mpn  { font-family: 'Courier New', monospace; font-size: 11.5px; color: #e8720c; font-weight: 700; word-break: break-word; }\n.qh-pd .power { font-weight: 700; color: #1a1a2e; white-space: nowrap; }\n.qh-pd .note  { font-size: 12px; color: #666; }\n.qh-pd .spec-table { width: 100%; border-collapse: collapse; margin-bottom: 1.5rem; font-size: 14px; }\n.qh-pd .spec-table td { padding: 8px 12px; border-bottom: 1px solid #eee; vertical-align: top; }\n.qh-pd .spec-table tr:nth-child(even) td { background: #faf8f4; }\n.qh-pd .spec-table tr:nth-child(odd)  td { background: #fff; }\n.qh-pd .spec-table td:first-child { font-weight: 600; color: #333; width: 38%; }\n.qh-pd .callout { padding: 0.8rem 1.1rem; border-radius: 0 6px 6px 0; margin: 0.8rem 0; font-size: 14.5px; }\n.qh-pd .callout-orange { background: #fff3e0; border-left: 4px solid #e8720c; color: #4a2500; }\n.qh-pd .callout-blue   { background: #e8f4fd; border-left: 4px solid #1565c0; color: #0a2a50; }\n.qh-pd .callout-green  { background: #e8f5e9; border-left: 4px solid #1b7a40; color: #0a2a18; }\n.qh-pd .callout-red    { background: #fdecea; border-left: 4px solid #b71c1c; color: #4a0a0a; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"qh-pd\"\u003e\n\n  \u003cdiv class=\"badge-row\"\u003e\n    \u003cspan class=\"badge b-navy\"\u003eSigenStack C\u0026amp;I\u003c\/span\u003e\n    \u003cspan class=\"badge b-orange\"\u003eSUB Expansion Base\u003c\/span\u003e\n    \u003cspan class=\"badge b-green\"\u003eIP66\u003c\/span\u003e\n    \u003cspan class=\"badge b-blue\"\u003eUp to 5 Battery Modules\u003c\/span\u003e\n    \u003cspan class=\"badge b-teal\"\u003eFire Suppression\u003c\/span\u003e\n    \u003cspan class=\"badge b-grey\"\u003e0.5C Rate\u003c\/span\u003e\n  \u003c\/div\u003e\n\n  \u003cp class=\"prod-desc\"\u003e\n    The SigenStack SUB Base Unit 0.5C is the expansion base used to extend a SigenStack installation beyond the initial five-module capacity of a MAIN base. When a project requires more than five SigenStack battery modules, one or more SUB base units are added alongside the MAIN — each accepting up to five further modules. Like the MAIN base, the SUB unit shares identical compact dimensions (770 × 363 × 195 mm), IP66 protection, built-in aerosol fire suppression, and smart air cooling compatibility. All connections are plug-and-play, maintaining the SigenStack system's fast commissioning workflow. The SUB base does not replace the MAIN; one MAIN base unit is always required as the primary stack foundation.\n  \u003c\/p\u003e\n\n  \u003cul class=\"feat-list\"\u003e\n    \u003cli\u003eExpansion base — adds capacity beyond the 5-module limit of a single MAIN base unit\u003c\/li\u003e\n    \u003cli\u003eEach SUB supports up to 5 additional SigenStack 0.5C battery modules\u003c\/li\u003e\n    \u003cli\u003eIdentical form factor to MAIN base — same dimensions, same installation workflow\u003c\/li\u003e\n    \u003cli\u003eIP66 rated — fully sealed against dust and water\u003c\/li\u003e\n    \u003cli\u003eBuilt-in aerosol fire suppression — pack-level safety consistent across the stack\u003c\/li\u003e\n    \u003cli\u003eSmart air cooling compatible — maintains thermal management across expanded stacks\u003c\/li\u003e\n    \u003cli\u003eTool-free plug-and-play connections — fast addition to existing or new SigenStack systems\u003c\/li\u003e\n    \u003cli\u003eCompact footprint (770 × 363 × 195 mm) — minimal additional floor space per 5-module expansion\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv class=\"callout callout-blue\"\u003e\n    ℹ️ \u003cstrong\u003eSUB base sizing:\u003c\/strong\u003e One SUB base is needed for every additional group of up to 5 battery modules beyond the MAIN base's 5-module capacity. For example, a 10-module system = 1 MAIN + 1 SUB; a 15-module system = 1 MAIN + 2 SUB. The MAIN base unit (SIG-STACK-BASE-MAIN-0.5C) is always required and is not replaced by SUB units.\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"section-label\"\u003eProduct Details \u0026amp; Specifications\u003c\/div\u003e\n  \u003ctable class=\"spec-table\"\u003e\n    \u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"sku\"\u003eSIG-STACK-BASE-SUB-0.5C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eManufacturer MPN\u003c\/td\u003e\n\u003ctd\u003eSigenStack Base SUB-0.5C\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eRole in System\u003c\/td\u003e\n\u003ctd\u003eExpansion base — used alongside MAIN base for \u0026gt;5 modules\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eMax Battery Modules\u003c\/td\u003e\n\u003ctd\u003eUp to 5 × SigenStack BAT 0.5C modules per SUB base\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e770 × 363 × 195 mm (W × D × H)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP66\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eFire Suppression\u003c\/td\u003e\n\u003ctd\u003eBuilt-in aerosol system\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eSmart air cooling compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eAssembly\u003c\/td\u003e\n\u003ctd\u003eTool-free, plug-and-play\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eCommercial \u0026amp; industrial (C\u0026amp;I) energy storage expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n\u003c\/div\u003e","brand":"Sigenergy","offers":[{"title":"Default Title","offer_id":63628234359133,"sku":"SIG-STACK-BASE-SUB-0.5C","price":650.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SigenergySigenStackSUBBaseUnit0.5C.png?v=1772102921","url":"https:\/\/qualityheating.co.uk\/products\/sigenergy-sigenstack-sub-base-unit-0-5c-sig-stack-base-sub-0-5c-stack-expansion-c-i-battery","provider":"AIZO Quality Heating","version":"1.0","type":"link"}