BMS L-Line Communication Cable 100 mm

Touch Display Integrated “?” Help Modular Expandable C-Line / L-Line CAN • Relay • UART (Add-On) OTA via WiFi Scalable up to 220 Slave Units Made in GermanyBattery Management System – smart, modular, future-proofConfiguration directly via the touch display – no additional software required. And so you don’t have to guess, every setting in the menu is explained with a “?”. Modern interfaces, clean bus topology and OTA updates ensure reliable integration – from compact setups to large-scale systems.OTA = Over the Air (update via WiFi)  •  OTA updates explainedOperationTouch display with “?” helpUpdates & FutureOTA via WiFiIntegrationC-Line / L-Line / CANScalabilityUp to 220 slave unitsScalability beyond “hobby level”The system is designed for both small and large projects: from compact setups to already implemented storage systems in the megawatt-hour range – used worldwide.🧱Up to 220 slave unitsA large number of cells or modules? No problem. Thanks to the modular bus structure, the system can be built cleanly and expanded as needed – without cable chaos or improvised solutions.🌍From small systems to MWh – worldwideWhether stationary, mobile or part of infrastructure: we have implemented both small installations and large-scale systems in the MWh range – not just locally, but around the world.What this means for you: You are not buying a “single-purpose BMS”, but a platform that works just as cleanly in small projects as it does in large-scale setups.Quality that matters in everyday useDeveloped and manufactured in Germany – with a focus on robust real-world performance, clear documentation and a platform that grows with your requirements.🛠️Made in GermanyShort supply chains, clear standards – and a system built for real-world conditions.🧠Future-proof through updatesNew features, profiles and improvements are delivered via WiFi – conveniently and without disassembly.Practical advantage: Start small – and expand later as needed. No “all-or-nothing” decision, but a system that grows with you.Why this BMS?Clarity, safety and compatibility – without unnecessary complexity.⚡Simple & intuitiveSettings directly on the device – clearly structured, logically explained and without additional tools.Integrated help: Every setting in the menu includes a “?” – tap, understand, configure.🛡️Protection logic instead of guessworkThe BMS monitors cell voltages, temperatures and currents – and can respond accordingly depending on the integration (e.g. through permissions, limits and relay logic).🧩Modular & cost-efficientYou only unlock what you actually need: add-ons instead of overkill – perfect for expansions, variants and project-based requirements.🔗Powerful interfacesC-Line & L-Line for modular battery/sensor components, plus CAN (Port 5) for peripheral devices. For your own control systems: optional customer CAN or UART (add-on).Safety & cell protection – easy to understand, not overcomplicatedA good BMS does not just detect limit values – it helps you keep the battery operating in a healthy range over the long term.Cell voltage under controlUndervoltage / overvoltage per cellLowest & highest cell including cell addressDetect drift early (before it becomes a problem)Temperatures & performanceMonitoring of cell temperatures (min/max/average)Protection logic for charging/discharging – depending on the setupBasis for smart performance permissionsImportant: How exactly the system limits or switches depends on the integration (inverter/charger/relay). The BMS provides the clean data and signals required – the rest is controlled implementation.Perfect integration – data in, action outThe system provides the relevant values – and enables real-time response.C-Line / L-Line system busConnection of battery boards (Slave Boards) and current sensorsModularly expandable – tailored to the number of cells/modulesClean, bus-capable wiring (galvanically isolated)CAN (Port 5) for peripheralsCommunication with inverters/chargers (depending on profile/protocol)Ideal for dynamic permissions, limits and status messagesGalvanically isolated interfaceCustomer interface (optional / add-on):For your own control systems, choose either customer CAN or UART (not in parallel).Add-ons: unlock, expand, integrate cleanlyAdd-ons are software extensions for the MasterUnit: you activate exactly the functions you need – no more and no less. This makes the system flexible, fairly priced and extremely expandable.Inverter Add-OnDetailsFor communication with supported inverters – including clean status handling and performance permissions (depending on the profile).Low voltage (LV up to 75V) – supported:Victron Energy, Goodwe, SOFAR SOLAR, SUNGROW, Dowell, Deye, ATON, SOLAX, STUDER, VoltronicPowerHigh voltage (HV) – please verify model in advance:Deye, Sofar, Growatt, Sungrow, SolarMax, Solis Note: A current sensor is always required for HV communication. Victron Add-OnDetailsSeamless communication with Victron components via CAN bus – including support for the Victron BMS protocol.GX integration: An additional adapter is required to connect to a Victron GX device (RJ45 adapter BMS to Victron).Depending on the setup, the pinout may need to be adjusted.Customer Interface Add-OnDetailsFor custom control systems, logging and individual integrations – ideal if you want to bring data into your own system or respond independently.CAN protocol (Port 5) for custom applicationsUART protocol (Port 3) for direct connectionPractical for dashboards, automation, smart home / industrial I/OIn short: If you want more than “just compatible” – this is your add-on.Additional Relay ActivationDetailsBy default, 1 relay channel is unlocked. If you need more, simply expand – up to a total of 4 channels.Simple principle: 1 add-on = 1 additional relay channel (up to max. 4).Charger Add-Ons (charger control)If the MasterUnit is intended to actively control certain chargers, the appropriate add-on is required depending on the charger type.ELCON TC Charger Add-On – for controlling ELCON TC Chargers.LX Longrun Q2 Charger Add-On – for controlling LX Longrun Q2 Chargers.iCharger Add-On – for iCharger control; please provide the MasterUnit serial number during checkout.When purchasing an iCharger, activation is included if the MasterUnit was also purchased from us.All add-ons at a glanceHere you can find all extensions in one place – ideal for expanding your setup exactly as needed. View Add-Ons Quick selection: Connect inverter → Inverter Add-On • Victron system → Victron Add-On • Custom logic/monitoring → Customer Interface • More switching logic → RelaySupported devicesExcerpt – the list is continuously being expanded.Supported devices (excerpt)Inverter compatibility (excerpt)Typical applications – on-grid, off-grid, mobile, extremeThe system is not only used in classic home storage systems. We operate in on-grid & off-grid environments – and wherever energy needs to be available reliably.Home storage / ESS (on-grid)Stable SOC/status values for clean charging/discharging strategiesDynamic permissions for inverters/chargers (depending on profile)Diagnostics on the display – understandable, without guessworkOff-grid / backup / commercialTransparency regarding cell conditions & temperaturesRobust communication with peripherals (CAN)Optional customer interface for custom logicMobile applications (vehicles, special-purpose vehicles)Clean monitoring under changing load profilesRelay logic and permissions for peripherals & safetyModular expansion – from “compact” to “really large”Typical examples: Expedition/work vehicles, mobile power units, utility vehicles.Marine (boats, marine vehicles)Stable onboard energy supply – even during long idle periodsMonitoring and status data for the overall systemExpandable for different battery banks and sensor setupsReal-world use: Where vibration, changing loads and “it just has to work” matter most.Extreme environments: polar regionsWhere you cannot “just drive over there”: energy must be reliably stored and available – for example for weather monitoring stations, sensors or measurement systems.Southern latitudes: mobile communications & infrastructureA typical example: mobile network stations that need to continue operating reliably during power outages. What matters here is predictable reserve capacity, clear status data and integration that is not based on “luck”.In short: Whether at home, on the road or at the other end of the world – the principle remains the same: understand the battery, know its limits, integrate it properly.FAQ – short & helpfulThe most important questions before making a decision.Do I need a PC for setup?No – configuration is done directly via the touch display. Every setting is explained via the “?”.Can I expand later?Yes – modular design plus add-ons: sensors, protocols and functions can be added as needed.How do new features get onto the device?Via OTA update over WiFi – convenient and without disassembly.Which interface is the right one?For inverters/peripherals, usually CAN (Port 5). For custom control systems: customer interface via customer CAN or UART (add-on).Tip: If you are unsure, just note down the cell count, current and inverter/charger – that is enough to choose the right setup properly.LanguagesGerman & English – more languages coming soon.DE EN More soon

RJ45 L-Line JST Adapter boostech®BMS Adapter RJ45 to L-Line JST ConnectorReliable connection between Master Unit V3 and L-Line Slave Boards – ensuring stable and secure signal transmission.ConnectionRJ45 → JSTSystemL-LineCompatibilityMaster Unit V3InstallationPlug & PlayProduct DescriptionThe boostech® RJ45 to L-Line JST adapter enables easy connection of L-Line Slave Boards to the Master Unit V3. It ensures stable and low-loss signal transmission within the BMS system and is specifically designed for reliable integration.ApplicationConnection of L-Line Slave Boards to the Master Unit V3Connection via RJ45 Ethernet cableStable communication within the BMS systemRecommendationsUse at least RJ45 Ethernet CAT 6 cableEnsures optimal signal integrity and minimal lossesPlug & Play installation without additional effortTechnical DataApplicationConnection of serial Slave Board to Master Unit V3Dimensions37 × 20 × 16 mm (L x W x H)ConnectionRJ45 to L-Line JST ConnectorRecommended CableRJ45 Ethernet CAT 6 or higherSystemboostech® BMS L-LineInstallation NotesCheck the connection before commissioning.Use only suitable RJ45 Ethernet cables (min. CAT 6).Ensure correct connection between Master Unit and Slave Boards.For maximum reliability, we recommend using high-quality Ethernet cables to ensure stable communication.

Technical Specifications:Input Voltage/Current: 36-72V / 0.6AOutput Voltage/Current: +12V DC / 1.25AMaximum Power: 25WProtection Class: IP24

Technical Specifications:Input Voltage/Current: 18-36V / 1.3AOutput Voltage/Current: +12V DC / 1.25AMaximum Power: 25WProtection Class: IP24

Technical Specifications:Input Voltage/Current: 9.2-18V / 2.5AOutput Voltage/Current: +12V DC / 1.25AMaximum Power: 25WProtection Class: IP24

Technical Specifications:Input Voltage/Current: 230V DC / 0.7AOutput Voltage/Current: +12V DC / 2.1AMaximum Power: 25WProtection Class: IP24

Adapter 800301 – Connection Boostech BMS ↔ Victron GXThe 800301 Adapter enables the direct connection of your Boostech BMS V3 to Victron GX devices (e.g. Cerbo GX). It translates the pin assignment of the BMS to the Victron interface, ensuring a reliable CAN-bus communication.✅ Simple plug-and-play connection✅ Optimized data transfer (voltages, currents, SOC, warnings, errors)✅ Compatible with all Victron GX-series devices✅ Seamless integration into Victron ESS systems incl. control and safety signals✅ Requires two standard RJ45 LAN cables: one from the BMS to the adapter board and one from the adapter board to the Victron GX deviceWith the 800301 Adapter, you can integrate your Boostech BMS smoothly into the Victron energy system, ensuring safe, stable, and complete data communication.

BMS-BUS Relay V3 – 4-Channel Control RelayThe BMS-BUS Relay V3 is a compact 4-channel control relay supplied with a 20 cm connection cable. It is compatible with the BMS Master Unit V3 and allows easy integration into existing systems. Thanks to the pre-assembled connection cable, installation is quick and straightforward.ApplicationsThe relay is designed for controlling external components via control signals. It is not intended to be used as a primary universal load switching device without proper protection. Suitable protection components (fuses, circuit breakers, contactors, etc.) must be used depending on the application. Via the Master Unit V3, the following functions can be configured individually:✔ Charge relay✔ Discharge relay✔ Heating control✔ Cooling control✔ Emergency stop function✔ User-defined control based on voltage, current or SOCUsage NoteBy default, only one channel is activated. Additional channels can be conveniently unlocked at any time via our website.Technical SpecificationsModule type4-channel SPDT relay module (I²C controlled)Operating voltage5 V DCNominal coil/module currentapprox. 89.3 mAPower consumptionapprox. 0.45 WTÜV-certified load rating10 A @ 250 VAC / 10 A @ 30 VDCUL-certified load rating10 A @ 125 VAC / 10 A @ 28 VDCMaximum allowable voltage250 VAC / 110 VDCContact resistancemax. 100 mΩInsulation resistancemin. 100 MΩ (at 500 VDC)Max. switching frequency30 operations per minuteAmbient temperature-40°C to +85°COperating humidity45% to 85% RHContact materialAgCdOControl interfaceI²CDefault I²C address0x11 or 0x12Available I²C addresses0x00 to 0x7FOutput terminals3-pin screw terminals per channel (NC / COM / NO)Electronics noteIntegrated microcontroller for channel control (controller IC may vary depending on production batch or availability; functionality and control behavior remain unchanged).