Active BMS for 12V Systems. WS500 compatible. Includes wiring harness with cell &
relay wires, CAN and RS485 cables, temp. sensor wires (2), and remote ON/OFF switch.
REC is proud to announce the REC Active BMS for four cells
connected in series. 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
Features:
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