Features:

• robust and small design
• 4 – 16 cells (for 12V, 24V, 36V or 48V nominal battery packs or any number of cells between 4 and up to 16 cells (68V))
• single cell voltage measurement (0.1 – 5.0 V, resolution 1 mV)
• single cell - under/over voltage protection
• single cell internal resistance measurement
• SOC and SOH calculation
• over/under temperature protection (up to 4 temperature sensors)
• passive cell balancing 4 Ω
• 18-bit shunt current measurement (resolution 19.5 mA @ ± 500 A)
• galvanically isolated user defined multi-purpose digital output
• internal DC opto-relay output
• programmable relay (normally open)
• galvanically isolated RS-485 communication protocol
• CAN Bus communication for managed batteries

• Galvanically isolated serial port communication for
  - REC Wi-Fi unit for changing the settings and data-logging (optional accessory) or
  - Users may connect the BMS into their system, eg home automation, industrial applications, remote monitoring, etc

• error LED + buzzer indicator

• Remote ON/OFF

• Control pilot (CP) signal for Electric Vehicle Supply Equipment (EVSE)

• Integrated 25 Ohm pre-charge with adjustable time delay

• Integrated Real-time clock (RTC) with last 7 errors

• Watt-hour (Wh) counter

• ISO16315, ISO10133, EN61558-1, EN61558-2 and EN50498 compliant

Data communications

RS485 protocol and messages are fully defined in manual - can be programmed using Hyperterminal or similar

RS485 message checksum is CRC-16 0x8005 x16 +x15 +x2 + 1

CAN Bus messages are fully defined in manual

Included items:

1. 2Q BMS electronic unit

Optional Items

REC Wifi