Product Overview

Discharge testing batteries is the only verifiable method the capacity of your batteries. LB 3980 DC Load Bank delivers a programmable, constant current load for your testing needs. Whether you are load testing for capacity, performance, acceptance or other, LB 3980 provides you an economical complete package solution. Increase employee and battery system safety with PER CELL monitoring and standard built in auto-shutdown features. To suit a variety of industries and diverse applications, LB 3980 offers over 60 standard models to fit your exact needs at the best price.

  • Small weight, compact, convenient for onsite test

  • It sets 4 conditions for discharge auto shut-down: Discharge time, discharge capacity, string voltage and cell voltage

  • Continued discharge available when previous discharge is stop abnormally

  • Parallel connection of two units for higher discharge current

  • Can work with other load banks for assistant discharge

  • Can monitor measurement of other load banks or battery charger

  • Accurate data measurement and vivid waveforms

  • Auto sorting for lag-out batteries during discharging

  • Safe circuits avoids damage to battery during measurement

  • Automatic protection upon over-heating and overload Thermal cut-off and automatic overload protection

  • Intelligent & powerful data viewer, capable of thousands battery data management. You can view your data & analyze on PC & phone and download report to excel anytime

DAC (Optional Accessories):

LB 3980 DC Load Bank come with an optional DAC package allowing the voltage of EACH CELL to be wirelessly monitored and recorded during discharge. The DAC package allows the user to evaluate the health of each cell and replace only the cells that require replacement-saving time and money by significantly reducing labor hours and replacement cost. One DAC could monitor 12pcs 2v cells or 4 pcs 6v/12v cells, you only need to change the wiring

Chose Your Model

Each model has its own discharge capability and cabinet size, please chose the right model based on your specific test needs

Test battery type 1.2V, 2V, 6V and 12V
Accuracy Current:1%, Voltage:0.5%
Resolution Current:0.1A, Voltage:0.001V
Sampling Interval 5s ~ 1min
Discharge mode Constant current discharge
Display 128*64 pixel LCD
Temperature 0℃~40℃
Humidity 5%~90% Relative humidity
Standard CE marking, EMC standard
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Single Voltage Model

These models could only discharge 1 specific voltage battery string with adjustable constant current

Model Discharge Capability Main Unit Size
LB24V-300A 24V, 0-300A 553mm×202mm×346mm
LB24V-400A 24V, 0-400A 553mm×202mm×346mm
LB24V-500A 24V, 0-500A 602mm×400mm×675mm
LB48V-100A 48V, 0-100A 401mm×177mm×273mm
LB48V-150A 48V, 0-150A 401mm×177mm×273mm
LB48V-300A 48V, 0-300A 552mm×225mm×425mm
LB48V-400A 48V, 0-400A 552mm×225mm×425mm
LB48V-500A 48V, 0-500A 732mm×400mm×675mm
LB125V-100A 125V, 0-100A 481mm×203mm×346mm
LB125V-200A 125V, 0-200A 602mm×400mm×675mm
LB125V-300A 125V, 0-300A 602mm×400mm×675mm
LB125V-400A 125V, 0-400A 732mm×400mm×885mm
LB220V-200A 220V, 0-200A 732mm×400mm×675mm
LB240V-150A 240V, 0-150A 732mm×400mm×885mm
LB380V-50A 380V, 0-50A 552mm×225mm×425mm
LB380V-100A 380V, 0-100A 732mm×400mm×675mm
LB480V-100A 480V, 0-100A 732mm×400mm×885mm

Double/Triple Voltage Model

<p style=”text-align: center;”>These models could discharge 2 or 3 specific voltage battery string with adjustable constant current</p>


Model Discharge Capability Main Unit Size
LB24/36V-100A 24V, 0-100A and 36V, 0-100A 481mm×703mm×346mm
LB24/36V-300A 24V, 0-300A and 36V, 0-300A 732mm×400mm×675mm
LB24/48V-200A 24V, 0-200A and 48V, 0-200A 552mm×225mm×425mm
LB24/48V-300A 24V, 0-300A and 48V, 0-300A 552mm×225mm×425mm
LB24/48V-600A 24V, 0-600A and 48V, 0-600A 732mm×400mm×675mm
LB24V-300A/48V-600A 24V, 0-300A and 48V, 0-600A 732mm×400mm×675mm
LB48/125V-100A 48V, 0-100A and 125V, 0-100A 553mm×203mm×346mm
LB48/125V-200A 48V, 0-200A and 125V, 0-200A 732mm×400mm×675mm
LB48/125V-300A 48V, 0-300A and 125V, 0-300A 732mm×400mm×675mm
LB48/240V-100A 48V, 0-100A and 240V, 0-100A 732mm×400mm×675mm
LB125/240V-100A 125V, 0-100A and 240V, 0-100A 732mm×400mm×675mm
LB125/240V-150A 125V, 0-150A and 240V, 0-150A 732mm×400mm×885mm
LB24/36/48V-300A 24/36/48V, 0-300A 732mm×400mm×675mm