BATTERY MANAGEMENT SYSTEM
Battery Management System products available with REC BMS.
For ordering any product, please contact us or write us an email to info@rec-bms.com.
REC Active BMS for 4 cells connected in series with active bi-directional balancing.
- 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
Our REC BMS Q series with integrated CAN communication protocol can manage up to 16 cells in series. Compatible also with CAN suported ESS inverters for integrations in PV systems, like SMA Sunny Island, Victron Energy, Studer, Stecca Innotec, GoodWe, Solax, Solis, etc.
- from 4 to 16 in-series connected cells per unit
- single cell voltage measurement (0.1–5.0 V, resolution 1 mV)
- single cell – under/over voltage protection
- SOC and SOH calculation
- up to 4 digital temperature sensors
- single cell internal resistance measurement
- over temperature protection
- reduced 1 s measuring interval
- balancing transistors defect check @ restart
- EEPROM memory data corruption check @ restart
- cell’s voltage RMS voltage measurement
- self calibration @ restart
- BMS shutdown @ 0.98 x minimum cell disconnect threshold
- Ah counting
- two galvanically isolated user defined multi-purpose digital outputs
- internal DC opto-relay output
- integrated precharge with adjustable time delay
- integrated RTC
- control pilot for EVSE
- compatible with CAN supported ESS inverters/chargers for integrations in PV systems, like SMA Sunny Island, Victron Energy, Studer, GoodWe, etc.
REC BMS Master – Slave configuration is suitable for higher voltage systems (up to 800 V) or for 48 V in parallel connection. It allows to connect up to 240 cells in series with REC 2Q BMS as Slave units and it is compatible with all REC BMS products.
- Li-PO, LiFePO4, LiFeYPO4, LiCoO2, LiMnNiCo, LTO and LiMnO4 Lithium-Ion chemistry
- Master + max 15 Slave combination
(up to 15x 16S = 240 cells) - single cell voltage measurement
(0.1 – 5.0 V, resolution 1 mV) - single cell internal resistance measurement
- single cell under/over voltage protection
- SOC and SOH calculation
- over temperature protection
(up to 4 temperature sensors per Slave unit) - under temperature charging protection
- passive cell balancing up to 1.3 A per cell with LED indication
- shunt current measurement
(resolution 10 mA @ +/- 300 A) - also suitable for implementation in parallel designed 48 V battery packs for use in ESS