LiFePO4 Battery Control System (BMS-LBCS)

LiFePO4 Battery Control System Features
The LiFePO4 Battery Control System has all the power control and battery management functions for a Lithium Ion battery system in one convenient package. It eliminates the need of external relays/contacts for cutoffs and the need of external current sensor.

• Built-in Battery Management System;
• Support universal battery voltage: 12V, 24V, 36V and 48V systems;
• Max continuous 200 Amp current output with Low Voltage Disconnect;
• Key Switch output with 2 second delay and with Low Voltage Disconnect;
• Shunt to measure battery current;
• Pre-charge circuit for motor controller built-in;
• Over-voltage output for charger control (to prevent over-charging);
• Battery current measurement;
• State-of-Charge (SOC) calculation and display;
• Mechanical interlock and AC detection to prevent Cart drive awey when plug in;
• MODbus data output;
• Video display output (optional, for install and trouble shooting only, and need external 12V DC to power on);
• Typical uses : golf carts, electric cars, or RV and boat house power. Also well suited for stationary power system.

What do you need LiFePO4 Battery System

• 1 x LiFePO4 Battery Control System main unit (included and BatterySpace will program according to you system specification)
• 1 x Fuel Gauge which show battery's capacity (included)
• 1 x Fuel Gauge cable (included)
• 1 x BMS CPU cable (connection to sense boards, included)
• 1 x Option LCD Screen for video display (order separately)
• LiFePO4 battery modules 20Ah / 40Ah / 60Ah / 100Ah / 200Ah (order separately)
• Sense board strings (one string per 4-cell pack, order separately)
• LiFePO4 Chargers: 12V / 24V(6A) / 24V(15A) / 36V(6A) / 36V(15A) / 48V(6A) / 48V(15A)  (order separately)

LiFePO4 Battery Control System Specifications

• One LiFePO4 Battery Control System is required per application
• Support Battery Voltage: 12V / 24V / 36V / 48V;
• Output voltages (motor out and key switch out): Equals to Battery Voltage;
• Max current for motor out: 200 A continuous;
• Disconnect threshold voltage: any cell reaches low voltage threshold (default 2.80V);
• Power On time delay: 10 second for pre-charge output and 2 seconds for key switch out and motor out;
• Disconnect time delay: 30 seconds for key switch out and motor out;
• Dimensions: 8 7/16" x 4 7/8" x 2 1/2";
• Weight: 2.05 lbs.

What is the advantage of BMS-LBCS ?

• Easy to install.
• BMS-LBCS accepts power input from 12-48VDC, no additional DC/DC is required.
• Shunt is built in, no additional shunt needs to be installed.
• There is key switch input and output. There is no need to add a relay controlled by UV alarm for key switch output.
• Pre-charge output is included, no need to install pre-charge resistor with a control replay driven by UV alarm output
• Motor connector output is UV protection is already included, no need to add a contactor to be controlled by UV alarm output.
• There is a SOC gauge included, just like a fuel gauge. No need to install LCD screen for each vehicle. LCD screen can be used during installation and during trouble shooting.
• When charger is running, the BMS-LBCS is automatically powered, no need to turn on key switch.
• There is AC detection, the motor output is disable when AC is detected. A drive away protection.
• If charger is not on board and there is only DC plug connected to the charge port, there is a mechanical switch/interlock provided to prevent drive away when DC plug is connected.
• MODbus communication is provided, easier access data than CANbus

LBCS System User Manual
LBCS Step by Step Setup Guide