{"product_id":"sungrow-powerkeeper-main-battery-accessories","title":"Sungrow PowerKeeper Main Battery Accessories","description":"\u003cp data-start=\"16\" data-end=\"352\"\u003eThe Power Keeper Accessory (Master) is the central control unit for Sungrow ST series battery systems, acting as the Battery Management Unit (BMU) for the entire stack. Designed to manage and coordinate multiple battery modules, this controller ensures safe, efficient, and optimised operation across the full energy storage system.\u003c\/p\u003e\n\u003cp data-start=\"354\" data-end=\"696\"\u003eAs the “brain” of the battery stack, the PK Accessory (Master) monitors system performance, manages charge and discharge behaviour, and provides critical protection functions. It enables seamless communication between battery modules and the wider system, ensuring reliable operation in residential and commercial energy storage applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"4lslpf\" data-start=\"715\" data-end=\"793\"\u003eCentral BMU controller – manages and monitors up to 250kWh (with slave units)\u003c\/li\u003e\n\u003cli data-section-id=\"1bo2ru2\" data-start=\"794\" data-end=\"887\"\u003eSystem coordination – ensures balanced operation across all connected battery modules\u003c\/li\u003e\n\u003cli data-section-id=\"no8dc6\" data-start=\"888\" data-end=\"990\"\u003eAdvanced safety management – protects against overvoltage, overcurrent, and temperature events\u003c\/li\u003e\n\u003cli data-section-id=\"z8qeko\" data-start=\"991\" data-end=\"1073\"\u003eOptimised performance – intelligent control of charge and discharge cycles\u003c\/li\u003e\n\u003cli data-section-id=\"1r30sh\" data-start=\"1074\" data-end=\"1171\"\u003eSeamless system integration – designed specifically for Sungrow ST series battery systems\u003c\/li\u003e\n\u003cli data-section-id=\"5p9fz9\" data-start=\"1172\" data-end=\"1272\"\u003eReal-time monitoring \u0026amp; communication – enables system diagnostics and operational visibility\u003c\/li\u003e\n\u003cli data-section-id=\"v6djq4\" data-start=\"1273\" data-end=\"1368\"\u003eSupports scalable systems – essential component for multi-module battery configurations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align: left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003ePK Accessory (Master)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003ePower Keeper Accessory (Master)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eBattery Management Unit (BMU) \/ System Controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eSungrow ST Series Battery Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eST050 and scalable ST battery stacks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRole\u003c\/td\u003e\n\u003ctd\u003eMaster controller for battery modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eIntegrated within battery stack system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Smiths NZ","offers":[{"title":"Default Title","offer_id":51531627561250,"sku":"PK Accessory (Master)","price":99999.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0258\/5958\/8148\/files\/79dcab83-c9bd-4611-acec-fa62c1a302cb.png?v=1776129369","url":"https:\/\/smithsnz.co.nz\/products\/sungrow-powerkeeper-main-battery-accessories","provider":"Smiths NZ","version":"1.0","type":"link"}