The ULTIMUS BMS is designed for high power and fast charging in your RV and boat where there may be multiple charge sources with different charge profiles and voltages. Charging can be from ANY PV solar controller, ANY inverter/ charger and with properly sized wiring, directly from ANY alternator. In most cases there is no need for special regulators or DC-DC converters.
ULTIMUS
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The ULTIMUS Advantage
- Built in CAN-bus supports up to 16 batteries in parallel, Up to 4 series, networked heater control, CAN-bus cable included.
- High Power BMS with Bluetooth integrated, real time monitoring, Android and IOS Apps. Cloud firmware updates.
- Patented case, heat radiator, pressure relief valve, IP67 wet rated, LED display, network configuration button, serviceable case for updates or service.
- MPU controlled heating for safe charging down to -4°F. Advanced algorithm heater controller, Does not use battery power for heating.
ULTIMUS Unique Features
- Cloud based firmware updates using push technology
- CAN bus communications, parallel up to 16 batteries, up to 41kWh in one battery bank
- Multiple battery banks can be configured
- Direct CAN bus connection to Victron Cerbo GX and Ekrano GX for remote battery monitoring
- Protocol converter for connecting to RV-C CAN bus and many other inverter networks
- Internal heaters, microprocessor controlled
- IP67 wet rated cases
- Charge with conventional inverter/chargers and many converters Lithium chargers not required
- Serviceable case for repairs
- High current BMS for up to 1.5C continuous power
- Advanced Bluetooth App for combining all batteries to view on a single screen
- Available touch screen monitor panel for full time viewing battery data on the CAN bus
- Intertek ETL (UL1973 standard) available
LiFeBlue ULTIMUS is Plug and Play simplicity when connected to Victron Cerbo or Ekrano GX Comm centers
Victron Compatibility
A simple CAN bus connection and ULTIMUS batteries will complete your Victron system. For next level monitoring, use the VictronConnect App to view your ULTIMUS Battery data.


