{"product_id":"used-battery-management-system-bms-all-in-one-unit","title":"Used Battery Management System (BMS) all-in-one unit.","description":"\u003ch3 dir=\"auto\"\u003eWhat the unit actually is\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eThis is a rack-mountable (19\" style) assembled BMS cabinet for a \u003cstrong\u003e24-series (24S)\u003c\/strong\u003e lithium battery pack. For LiFePO4 that would be roughly 76.8 V nominal.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eVisible internals:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMain BMS controller box\u003c\/li\u003e\n\u003cli\u003eHeavy-gauge red\/black power cables\u003c\/li\u003e\n\u003cli\u003eContactors\/relays for charge\/discharge disconnect\u003c\/li\u003e\n\u003cli\u003eCurrent shunt (green labeled component)\u003c\/li\u003e\n\u003cli\u003eAuxiliary switching power supply\u003c\/li\u003e\n\u003cli\u003eLarge bundle of thin balance\/voltage sensing wires\u003c\/li\u003e\n\u003cli\u003ePhoenix-style green terminal blocks (J1–J4)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eTypical functions\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ePer-cell and pack voltage monitoring\u003c\/li\u003e\n\u003cli\u003eOver-voltage \/ under-voltage protection\u003c\/li\u003e\n\u003cli\u003eOver-current and short-circuit protection\u003c\/li\u003e\n\u003cli\u003eTemperature monitoring\u003c\/li\u003e\n\u003cli\u003eCell balancing\u003c\/li\u003e\n\u003cli\u003eCurrent measurement (via shunt)\u003c\/li\u003e\n\u003cli\u003eSOC estimation\u003c\/li\u003e\n\u003cli\u003eCommunication (the J1–J4 connectors are almost certainly RS485, CAN, dry contacts, or temperature sensor inputs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThe green J1–J4 connectors on the front panel are industrial I\/O terminals, not primary communications ports in the networking sense. They are typical for connecting to an inverter, display, or monitoring software.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis style of unit is commonly used in:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eTelecom base station backup batteries\u003c\/li\u003e\n\u003cli\u003eEnergy storage systems (ESS)\u003c\/li\u003e\n\u003cli\u003eIndustrial rack-mounted battery cabinets\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Battery Hookup","offers":[{"title":"Default Title","offer_id":47596063916194,"sku":"Used BMS all-in-one unit.","price":200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2398\/3077\/files\/0_5f64c2ba-6e05-4906-8805-715212da0de4.jpg?v=1787923157","url":"https:\/\/batteryhookup.com\/products\/used-battery-management-system-bms-all-in-one-unit","provider":"Battery Hookup","version":"1.0","type":"link"}