REC Active BMS
REC Active BMS
REC Active BMS
REC Active BMS
REC Active BMS

REC Active BMS

Build your system as a kit and save!  Active BMS Kit Builder

Active BMS for 12V Systems. Victron and WS500 compatible. Be sure to include the custom wiring harness with cell & relay wires, CAN and RS485 cables, temp. sensor wires (2), and remote ON/OFF switch, unless you are just replacing a unit or doing a custom installation.

Designed to provide unsurpassed battery management in 12 volt systems, the REC Active BMS delivers 2A cell equalizing with active balancing and synchronous flyback bidirectional energy transfer from cell to pack and pack to cell.

Features:

  • Li-PO, LiFePO4, LiFeYPO4, LiCoO2, LiMnNiCo and LiMnO4 Lithium-Ion chemistry
  • 4 series connected cells per unit
  • high efficiency 2 A bi-directional active balancing (pack to cell and cell to pack)
  • IP65 protection enclosure, AMP 35 pin water resistant connector
  • 2 – 5 V measuring range, 2 mV accuracy
  • up to 2 digital temperature sensors
  • shunt current measurement
  • robust and small design
  • galvanically isolated RS-485 and CAN communication protocol
  • two programmable fused relay output
  • two programmable fused digital output
  • ON/OFF switch
  • LED and buzzer status indication
  • bootloader
  • error LED + buzzer indicator
  • PC user interface for changing settings, data-logging and firmware update
  • compatible with REC LCD touch display for monitoring
  • compatible with Victron inverters for solar applications
  • Seamless CANbus integration with Wakespeed’s WS500 Advanced
    Alternator Regulator

Microcontroller:

  • low power microcontroller RTC
  • custom made software with bootloader for remote firmware update
  • 60 mW self power consumption with disabled CAN and all outputs

RS - 485 communication:

  • galvanically isolated RS-485 communication
  • Slave configuration
  • RS-485 driver primary side supply is activated with Master connection to save energy consumption
  • fully compatible with REC LCD touch display and PC user interface BMS Master control

Active Balancing:

  • 2A cell equalizing with active balancing with synchronous flyback bi-directional energy transfer: cell to pack and pack to cell
  • top side and bottom side balancing prolong the cycle duration due to the weakest cell

Outputs:

  • two fused relay outputs with NO and NC pins
  • two fused galvanically isolated/non-isolated digital outputs with PWM option

Galvanically Isolated CAN:

  • galvanically isolated CAN
  • 100, 125, 250, 500, 1 MHz bit-rate selection
  • message programming
  • disable option

Complete wiring of ABMS connector:

  • 5 cells wires (l = 1m)
  • relays, digital output wires (l = 0.5m)
  • RS485 cable (l = 0.5m)
  • CAN cable (l = 0.5m)
  • remote ON/OFF switch (l = 1m)

 

$329.95

In Stock

Review/Question

Description

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Additional Info

Reviews

Build your system as a kit and save!  Active BMS Kit Builder

Active BMS for 12V Systems. Victron and WS500 compatible. Be sure to include the custom wiring harness with cell & relay wires, CAN and RS485 cables, temp. sensor wires (2), and remote ON/OFF switch, unless you are just replacing a unit or doing a custom installation.

Designed to provide unsurpassed battery management in 12 volt systems, the REC Active BMS delivers 2A cell equalizing with active balancing and synchronous flyback bidirectional energy transfer from cell to pack and pack to cell.

Features:

  • Li-PO, LiFePO4, LiFeYPO4, LiCoO2, LiMnNiCo and LiMnO4 Lithium-Ion chemistry
  • 4 series connected cells per unit
  • high efficiency 2 A bi-directional active balancing (pack to cell and cell to pack)
  • IP65 protection enclosure, AMP 35 pin water resistant connector
  • 2 – 5 V measuring range, 2 mV accuracy
  • up to 2 digital temperature sensors
  • shunt current measurement
  • robust and small design
  • galvanically isolated RS-485 and CAN communication protocol
  • two programmable fused relay output
  • two programmable fused digital output
  • ON/OFF switch
  • LED and buzzer status indication
  • bootloader
  • error LED + buzzer indicator
  • PC user interface for changing settings, data-logging and firmware update
  • compatible with REC LCD touch display for monitoring
  • compatible with Victron inverters for solar applications
  • Seamless CANbus integration with Wakespeed’s WS500 Advanced
    Alternator Regulator

Microcontroller:

  • low power microcontroller RTC
  • custom made software with bootloader for remote firmware update
  • 60 mW self power consumption with disabled CAN and all outputs

RS - 485 communication:

  • galvanically isolated RS-485 communication
  • Slave configuration
  • RS-485 driver primary side supply is activated with Master connection to save energy consumption
  • fully compatible with REC LCD touch display and PC user interface BMS Master control

Active Balancing:

  • 2A cell equalizing with active balancing with synchronous flyback bi-directional energy transfer: cell to pack and pack to cell
  • top side and bottom side balancing prolong the cycle duration due to the weakest cell

Outputs:

  • two fused relay outputs with NO and NC pins
  • two fused galvanically isolated/non-isolated digital outputs with PWM option

Galvanically Isolated CAN:

  • galvanically isolated CAN
  • 100, 125, 250, 500, 1 MHz bit-rate selection
  • message programming
  • disable option

Complete wiring of ABMS connector:

  • 5 cells wires (l = 1m)
  • relays, digital output wires (l = 0.5m)
  • RS485 cable (l = 0.5m)
  • CAN cable (l = 0.5m)
  • remote ON/OFF switch (l = 1m)

 

Victron Cerbo/Venus

WS500 Smart Regulator

Customer Reviews

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G
GMS (United States)
Controls Everything!

We have been using the REC BMS in conjunction with a Victron Multiplus and Wakespeed Regulator (alternator control) for a couple years now. The REC BMS communicates via CANbus with all of our charge and major discharge sources to ensure that the LiFePO4 house bank on our boat is properly managed. The system has been basically flawless. The only negative is the REC BMS is programmed to keep the house bank more or less at full charge even when we are away from the boat, I would prefer a storage mode that kept the bank at a lower state of charge but have not figured out how to do this with the REC.

This is great feedback. With the new Wi-Fi module REC should be able to add this functionality and hopefully, after the release of the new 2Q BMS they will consider this feature request.