{"product_id":"qbp740152","title":"Victron Energy VE.Bus BMS Battery Management System, For Victron LiFePO4 Batteries, 12-48VDC","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Victron Energy BMS300200000 is a VE.Bus battery management system for Victron LiFePO4 and LFP battery banks on 12V, 24V and 48V DC marine power systems. It operates across a 9 to 70V DC input range and protects individual lithium cells against over-voltage, under-voltage and over-temperature conditions.\u003c\/p\u003e\u003cp\u003eThis unit is used with Victron lithium batteries that have integrated Balancing, Temperature and Voltage control, often referred to as BTV. The BTV connections from multiple batteries can be daisy-chained, allowing the BMS to supervise the battery bank and send control signals when the bank needs loads reduced, charging limited or chargers disconnected.\u003c\/p\u003e\u003cp\u003eFor boats using VE.Bus equipment, the BMS links to MultiPlus, Quattro or Phoenix inverter products through a standard RJ45 UTP cable. It also gives installers Load Disconnect, Charge Disconnect and Pre-alarm outputs for controlling supporting equipment in a safer lithium setup.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003eProtects each individual cell in a Victron LiFePO4 or LFP battery against over-voltage, under-voltage and over-temperature conditions.\u003c\/li\u003e\n\u003cli\u003eWorks in 12V, 24V and 48V DC systems, with a BMS input voltage range of 9 to 70V DC.\u003c\/li\u003e\n\u003cli\u003eConnects to MultiPlus, Quattro or Phoenix inverter products through a standard RJ45 UTP VE.Bus cable.\u003c\/li\u003e\n\u003cli\u003eUses Load Disconnect, Charge Disconnect and Pre-alarm outputs to manage loads, chargers and warning devices during battery fault conditions.\u003c\/li\u003e\n\u003cli\u003eSupports daisy-chained BTV battery connections for multi-battery Victron LiFePO4 banks.\u003c\/li\u003e\n\u003cli\u003eLoad Disconnect output has a 2A source current limit, while the Charge Disconnect output has a 10mA source current limit.\u003c\/li\u003e\n\u003cli\u003ePre-alarm output can trigger a warning before load disconnect, with a minimum 30 second delay between pre-alarm and load disconnect.\u003c\/li\u003e\n\u003cli\u003eIP20 housing for installation inside a protected electrical area, with an operating temperature range from -20°C to +50°C.\u003c\/li\u003e\n\u003cli\u003eABS enclosure measures 105 x 78 x 32 mm and weighs about 0.1 kg.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThe VE.Bus BMS is for Victron LiFePO4 battery systems that use BTV connections. It is not a generic drop-in BMS for unrelated lithium batteries, so the battery type and Victron BTV cabling should be confirmed before installation.\u003c\/p\u003e\u003cp\u003eThe battery BTV leads can be daisy-chained across several batteries. The system supports arrangements with up to five batteries in parallel and up to four batteries in series, which covers typical 12V, 24V and 48V house-bank layouts when the battery bank is configured within the proper lithium system limits.\u003c\/p\u003e\u003cp\u003eVE.Bus communication is handled through two RJ45 sockets, making the unit a natural fit for boats with Victron inverter or inverter\/charger equipment already in the electrical system. Non-VE.Bus loads and charge sources can be controlled through the appropriate disconnect terminals rather than through VE.Bus communication.\u003c\/p\u003e\u003ch6\u003eInstallation and setup\u003c\/h6\u003e\u003cp\u003eMount this BMS in a dry and protected electrical space, such as an electronics locker, battery control area or distribution panel compartment. The IP20 protection grade and 95% maximum non-condensing humidity rating mean it should not be installed where it can be exposed to deck wash, bilge splash or dripping water.\u003c\/p\u003e\u003cp\u003eThe Load Disconnect output is normally high and becomes free-floating when cell under-voltage is imminent. The Charge Disconnect output is normally high and becomes free-floating when cell over-voltage or over-temperature is detected. The Pre-alarm output is normally free-floating and becomes high during an imminent cell under-voltage alarm, allowing a light, buzzer or relay to warn the crew before loads are disconnected.\u003c\/p\u003e\u003cp\u003eKeep the BTV, RJ45 UTP and disconnect wiring accessible and well supported. On a boat, clean routing and strain relief matter because battery spaces and electrical lockers see movement, service work and seasonal maintenance.\u003c\/p\u003e\u003ch6\u003eUse cases on board\u003c\/h6\u003e\u003cp\u003eThis BMS is a practical match for cruising boats, fishing boats and sailboats using Victron lithium batteries with a VE.Bus inverter or inverter\/charger. It helps coordinate the lithium bank with onboard DC loads, AC inverter loads and charge sources so the system reacts before the cells move outside their safe operating range.\u003c\/p\u003e\u003cp\u003eThe unit does not carry the main battery current itself. It belongs in a properly planned lithium installation with suitable fusing, cabling, load control and charger control hardware, so the BMS commands the system while the power equipment handles the actual current.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":52023557324981,"sku":"QBP740152","price":117.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1332246_qbp740152.jpg?v=1780191869","url":"https:\/\/www.qualityboatparts.com\/products\/qbp740152","provider":"Quality Boat Parts","version":"1.0","type":"link"}