SBS-8400: Battery Capacity Tester

Battery Capacity Tester with Monitoring

battery load bank / battery capacity tester with monitoring


- SBS-8400 Data Sheet

- Wireless Modules Data Sheet

- User's Manual

Smart Load Bank Manager Software Download

battery capacity tester, battery load bank video for SBS-8400

SBS-8400 Video


  • Telecommunications
  • Utility
  • UPS
  • Battery manufacturing
  • Industrial maintenance
  • Critical power
  • Data center

battery capacity tester case


  • Main unit
  • Instruction manual
  • Computer analysis software
  • 6 ft. DC cable set (pos. & neg.)
  • 3 ft. AC cable
  • RS232 wire
  • Case with wheels

10–300 Vdc, 0–120 Amp Constant Current Load Bank with Individual Cell Monitoring Capabilities

The SBS-8400 is a versatile and fully programmable, constant current discharge load bank with detailed data acquisition and display capabilities. The unit features a user-friendly touch screen menu and a complete built-in data monitoring/acquisition system when paired with wireless modules and software.

Unlike basic load banks, the SBS-8400 is a high-tech solution for easy, efficient collection of data and generation of records for archiving.


  • Automatically discharges batteries unmanned without danger of over-discharging
  • Individual cell monitoring capabilities via wireless modules
  • Can be used on a variety of systems with lead acid and/or
    nickel cadmium batteries
  • Test parameters are adjustable during test without stopping test
  • Automatically protects and saves data from an unexpected test stop/end
  • Easy to navigate unit menu and computer software
  • Download data after discharge to USB drive
  • Generates custom reports for trending, records and reporting with
    included software
  • Can be slaved with other load banks to increase amp draw up to 720 Amps

DC load bank / battery capacity tester with online monitoring


  • Wide voltage and current range: 10–300 Vdc / 0–120 Amps
  • Wireless module connection that measures and records individual
    cell voltages
  • 5.7 in. LCD touch screen
  • 30 parameter presets that can be adjusted during testing
  • Selectable discharge mode: constant current (amps) / power (kW)
  • 4 adjustable stop points and multiple alarm designs to control the
    process intelligently
    • Low system voltage: 0–250 Vdc
    • Discharge time: 0–99 Hour 99 Min.
    • Discharge capacity: 0–9999 Ah
    • Low cell voltage: 0–15.00 V
  • View test data in real time on screen or with computer via RS232
load bank diagram with battery cells
Example of how the wireless modules would be installed on a 48 Vdc system consisting of qty. (24) 2 volt cells:

Computer Analysis Software

battery capacity tester software example

  • User-friendly and easy to navigate
  • Data downloading and analyzing through real-time communication or USB memory devices
  • Software interface includes: battery voltages curve and bar chart, group voltage curve, current curve, capacities histogram data form, etc.
  • Generate custom and detailed Excel reports with USB and software

Paralleling Load Banks

The SBS-8400 has a 0–120 Amp current range; however, it is possible to parallel additional compatible load banks with the SBS-8400 to increase the current.

With the optional P/N 8400-600A DC clamp the user can discharge up to 720 Amps and the SBS-8400 will monitor the total DC current being drawn by up to two (2) additional load banks in parallel.

battery load banks in parallel

*Megger is a registered trademark and Torkel 840 is a trademark of Megger Group Limited or its subsidiaries.


DC Volt Range 10–300 Vdc
DC Current Range 10–15 / 150–300 Vdc: 0–60 Amps
15–150 Vdc: 0–120 Amps
Accuracy and Resolution ±1.0%, 0.1 Amp
Display 5.7" LCD Color Touch Screen
Power Supply 110 Vac, 60 Hz
Communications Port USB / RS232
Internal Memory 8MB Flash
Size (main unit) 9.0" x 14.5" x 27.0"; 53 lb.
Size (with case/acc.) 12.5" x 23.0" x 31.0"; 93 lb.

Ordering Information

Part No. Description
SBS-8400 0–300 Vdc, 0–120 Amp load bank

Accessory Ordering Information

Part No. Description
MODULE-1.2/2-25 1.2/2V Wireless module kit w/ case Qty. 25 (+2 spare)
MODULE-1.2/2-30 1.2/2V Wireless module kit w/ case Qty. 30 (+2 spare)
MODULE-2/6/12-15 2/6/12V Wireless module kit w/ case Qty. 15 (+2 spare)
MODULE-2/6/12-30 2/6/12V Wireless module kit w/ case Qty. 30 (+2 spare)
8400-600A 600 DC Current Clamp
SLAVE-CAB-8400>8400 Paralleling Cable, SBS-8400 to SBS-8400/ SBS-4815
SLAVE-CAB-8400>S Paralleling Cable, SBS-8400 to S-Series
SLAVE-CAB-8400>(2)S Paralleling Cable, SBS-8400 to (2)S-Series
BCT110/220-1000 750 Watt Voltage Transformer 110/220 Vac 50/60 Hz
Pelican case upgrade available