Victron Energy Lynx Smart BMS NG

Battery management system

A BMS, shunt and safety contactor for Victron Lithium NG batteries. Compare the 500 A and 1000 A M10 versions, and read battery data through a compatible GX device without bypassing charge or discharge protection.

Victron Energy Lynx Smart BMS NG
  • VE.Can
  • Bluetooth

Battery management system

Compatibility

Monitoring through a GX device only

Victron documents Lynx Smart BMS NG measurements over VE.Can to a GX device. A GX device exposes supported battery-service measurements through its separately enabled Modbus TCP service. Confirm the actual service and available fields on the installed system.

Lynx Smart BMS NG 500A (M10) and 1000A (M10), for Victron Lithium NG batteries. The older non-NG Lynx Smart BMS and Lithium Battery Smart family are not interchangeable with this NG battery connection. Edge monitoring is read only; ATC/ATD, DVCC and the safety contactor remain under the battery system’s control.

A commissioned Lynx NG bank is already visible on a compatible GX device

  • Wired
  • Edge
  • Platforms
Battery management system
Interface
Gateway
Edge
Output
Lynx Smart BMS NGLynx Smart BMS NG
Victron GX deviceGX receives the BMS over VE.Can and provides the separately enabled local Modbus TCP service.
ZGW-20 GatewayHosts Edge locally
EpiSensor EdgeModbus client + register map
Customer platformMQTT · API · files
VE.Can battery monitoring
GX Modbus TCP, read only
Runs locally
Optional onward data
VE.Can carries the BMS measurements to GX. The GX Modbus service exposes supported measurements under the actual battery-service unit ID. Read only fields implemented by that service; the complete set of cell details shown in GX is not automatically the Modbus register set. The customer-platform output is optional; Edge remains the local system of record.

Models

Download
ModelsInterfaceRoute into Edge
Lynx Smart BMS NG 500A (M10)500 A continuous contactor; 600 A for 5 minutes; 190 × 180 × 80 mm; 1.9 kgVE.Can to GX; the same monitoring approach as the 1000A version.
Lynx Smart BMS NG 1000A (M10)1000 A continuous contactor; 1200 A for 5 minutes; 230 × 180 × 100 mm; 2.7 kgA higher contactor rating does not raise the battery, fuse, cable or inverter rating.
Lithium NG versus Lithium Battery SmartNG battery BMS cables use circular three-pole connectors with an M8 screw ringMatch the bank to the NG BMS. The legacy battery family needs its appropriate BMS; similar product names are not an interchangeability guarantee.

Specifications

The contactor current rating is one component limit, not the permitted current of every connected bank. Battery limits, fusing, busbars, conductors and inverter/charger ratings still govern the installed system. These BMS units have no energy-storage capacity of their own.1

Supported system voltage
12, 24 or 48 V systems; BMS supply range 9–60 V DC1
500A variant
500 A continuous; 600 A for 5 minutes; approximately 2.6 W in ON mode at 12 V1
1000A variant
1000 A continuous; 1200 A for 5 minutes; approximately 4.2 W in ON mode at 12 V1
Communications
VE.Can to GX; Bluetooth for VictronConnect; RJ10 to Lynx Distributors1
Battery connection
Victron Lithium NG only; up to 50 batteries subject to the battery-system design rules1
Environmental limits
IP22; -40 to +60 °C; maximum 95% relative humidity, non-condensing1
Protection architecture
ATC/ATD contacts and GX DVCC are primary controls; contactor provides secondary protection1
Auxiliary output
1.1 A continuous; can keep GX powered temporarily after a low-cell-voltage shutdown, not indefinitely1

Interface

Documented measurements and integration boundaries for Lynx Smart BMS NG.

  • Battery state of charge, voltage and current from the BMS monitoring function, where exposed by the actual GX battery service.
  • Cell voltages, temperatures and alarms displayed by GX over VE.Can; inspect the GX Modbus workbook before assuming those details are externally readable.
  • Operational state and pre-alarm information in the Victron system; data loss is not a command to bypass the safety controls.
  • Lynx Distributor fuse status through supported connected distributors; the manual requires distributor serial HQ1909 or later for fuse-status communication.

Assessment

Lynx Smart BMS NG 500A (M10) and 1000A (M10), for Victron Lithium NG batteries. The older non-NG Lynx Smart BMS and Lithium Battery Smart family are not interchangeable with this NG battery connection. Edge monitoring is read only; ATC/ATD, DVCC and the safety contactor remain under the battery system’s control.

InteroperabilitySupported with conditions
VE.Can to GX and the separate GX Modbus service provide a documented mediated path. Available fields depend on the actual GX battery service, not a direct Lynx TCP endpoint.13
AccuracySupported with conditions
The integrated shunt and monitor report current and state of charge. The reviewed manual does not establish a revenue-energy accuracy class; these readings support battery operation and monitoring.1
SecuritySupported with conditions
Bluetooth can be disabled and re-enabled from GX. The Modbus endpoint is on GX and requires network restriction; the documented monitoring path does not add encrypted Modbus.13
ReliabilitySupported with conditions
The manual separates primary ATC/ATD/DVCC protection from the fallback contactor and documents pre-charge, alarms and AUX-supply shutdown behavior. Monitoring must preserve those controls.1
RuggednessSupported with conditions
IP22 requires a protected location. The published -40 to +60 °C range is for the BMS and does not override the batteries’ separate charging and operating limits.1
ScalabilitySupported with conditions
The manual supports up to 50 NG batteries per BMS under its design rules and up to five paralleled BMS units with matching current ratings and separate banks.1
LifecycleSupported with conditions
The product page and NG-specific manual distinguish current NG and legacy hardware. Firmware and battery-family changes require rechecking the complete documented combination.12

Setup

  1. Identify the NG battery system

    Check that the battery bank is Victron Lithium NG and the BMS is the 500A or 1000A NG M10 version. Size the complete system with the manufacturer installation rules. Do not infer safe cable, fuse or battery current from the contactor rating alone.

  2. Preserve the protection design

    Have the installer commission ATC/ATD and the appropriate GX DVCC controls. The contactor is a fallback, not a substitute for orderly charger/load control. External monitoring must not bypass a low-cell-voltage, temperature or charge-limit condition.

  3. Verify the GX connection

    Use the documented VE.Can connection and termination and confirm that the correct BMS, bank measurements and alarms appear on GX. The AUX supply can keep GX alive briefly after load shutdown; a later loss of telemetry must remain visible as unavailable data.

  4. Select the battery service

    Enable the GX Modbus TCP service on a restricted local network. Record the installed Venus OS version and battery service unit ID from Available services. Unit ID 100 is the system aggregate, not automatically the individual Lynx battery service. Read the current official register workbook for that service.

  5. Check monitoring against GX

    Start with supported voltage, current and state-of-charge readings. Compare the same battery and timestamp on GX, verify current direction, and handle missing-service exceptions. Leave charge/discharge limits and relay control untouched. No direct Lynx register import is provided here.

Common questions

Can I connect the VE.Can RJ45 port to an Ethernet switch?
No. The connector shape does not make VE.Can Ethernet. Connect it through the documented VE.Can path to GX; use the GX network interface for Modbus TCP monitoring.13
Does the 1000A model store more energy?
The BMS stores no usable battery energy. Its higher current rating supports a different system design. Capacity comes from the approved battery bank, while usable inverter output is limited by the complete system.1
Can 500A and 1000A BMS units share a parallel redundant system?
Victron requires the same current rating for paralleled Lynx BMS units: 500A with 500A or 1000A with 1000A. Each BMS has its own bank. Follow the separate parallel-redundancy design rules rather than joining unlike units.1
Does every GX screen field have a Modbus register?
No. GX can display detailed cell and fuse information, but a monitoring client can read only the fields implemented for the selected service in Victron’s Modbus workbook. A valid overall system response does not prove an individual battery-service mapping.13

Sources

  1. Lynx Smart BMS NG manual Rev 16, September 2026: 500A/1000A M10 (opens in a new tab) (PDF) Victron Energy
  2. Lynx Smart BMS NG manufacturer product page (opens in a new tab) Victron Energy
  3. GX Modbus TCP manual: available battery services and unit IDs (opens in a new tab) Victron Energy

Further reading

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