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


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