REC Active BMS
We are proud to announce our new product REC Active BMS for 4 cells connected in series with active bi-directional balancing. Long-term development now enables us to present you this excellent device, proven with various real life test conditions, latest technology of electronics components and unbeatable balancing algorithms.
Features:
- Li-PO, LiFePO4, LiFeYPO4, LiCoO2, LiMnNiCo and LiMnO4 Lithium-Ion chemistry
- suitable for 4 in-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
- equipped with bootloader for remote firmware update
- error LED + buzzer indicator
- PC user interface for changing settings, data-logging and firmware update
- compatible with REC LCD touch display and Wi-Fi module for monitoring
- compatible with Victron inverters for solar applications
- compatible with Wakespeed regulators for marine applications
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 Wi-Fi module for monitoring
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 = 1 m)
- relays, digital output wires (l = 0.5 m)
- RS485 cable (l = 0.5 m)
- CAN cable (l = 0.5 m)
- remote ON/OFF switch (l = 1 m)
- temperature sensor (l = 1 m)
- cable for current sensor shunt (l = 1 m)
Dimensions:
- width with mounting pads = 135 mm
- width = 105 mm
- length with connector = 111 mm
- length = 104 mm
- height = 44 mm
- connector width = 59.5 mm
- hole diameter = 4.5 mm
- We suggest M4 screws for mounting.