img good Tester for diagnosing lithium battery modules of electric and hybrid vehicles
img good Tester for diagnosing lithium battery modules of electric and hybrid vehicles

MS801
Tester for diagnosing lithium battery modules of electric and hybrid vehicles

The MS801 tester is designed for diagnosing lithium-ion modules of high-voltage batteries in electric and hybrid vehicles, as well as 48-volt batteries of "mild hybrids" (MHEV).
Manufacturer: MSG Equipment

MS801 is a specialized tester designed for servicing and diagnosing lithium-ion modules of high-voltage batteries used in electric and hybrid vehicles. The tester supports battery packs (battery modules) containing from 2 to 14 series-connected Li-ion cells (up to 4.2 V per cell) and from 2 to 16 LiFePO₄ cells.

The device functionality includes battery charging, discharging with actual capacity measurement, cell internal resistance testing, and active 16-channel balancing with a current range from 0.05 to 2 A. Simultaneous charging and discharging of cells during the balancing process significantly reduces the procedure time.

For communication with the Battery Management System (BMS), the tester is equipped with CAN and RS485 interfaces. It also supports connection of diagnostic scan tools via the OBDII connector for reading data from the battery BMS. All test results are automatically stored in the device's internal memory and can be analyzed on a PC using dedicated software. The dedicated software also allows users to generate diagnostic reports in PDF format. The tester can be operated either via the built-in display or remotely through any web browser using a laptop, tablet, or smartphone.

Features:

  • Compact dimensions.
  • Automatic diagnostic mode based on user-configurable test scenarios.
  • High charge and discharge currents.
  • Cell internal resistance testing.
  • Remote control via a web browser.
  • Specialized connection cables for battery modules with a non-detachable molded housing (optional).
  • Connection of diagnostic scan tools via OBDII.
  • Generation of diagnostic reports in PDF format.
  • Free software updates.

Warning! Incorrect test settings may cause permanent damage to the battery module under test.

Technical Specifications
Supply voltage, V
230
Power consumption, kW
2.2
Software update
available
Working with data buses
CAN, RS485
Connecting the diagnostic scanner
OBDII
Control
on the touchscreen display or remotely over the local network
Saving diagnostic results
available
Printing of diagnostic results
available via specialized software
Internet connection
Ethernet, Wi-Fi
Width, m
0,44
Depth, m
0,27
Height, m
0,32
Weight, kg
20
Charge rate, A
up to 60
Discharge rate, A
up to 70
Power source
single-phase electrical network
Energy recycling power (max), kW
1.75
Maximum battery module voltage, V
59
Number of series-connected cells (LiFePO4)
from 2 to 16
Energy recycling during discharge
yes
Number of series-connected cells (Li-ion, 4.2V)
from 2 to 14
Peak current for internal resistance test of cells
up to 120 A (test time 250 ms)
Number of balancing channels
16
Balancing current (charge, discharge), A
from 0.05 to 2
Maximum balancing voltage, V
4.2
User interface language
ENG
Video overview
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Превью видео
Training course on diagnostics and repair of high-voltage batteries for hybrid and electric vehicles
A training course on the diagnostics, maintenance, and repair of high-voltage batteries in electric vehicles. You will study the battery design, learn how to work safely with high-voltage circuits, and use professional equipment to assess their condition.
Click the link to learn more about the course
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Charge rate, A
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Discharge rate, A
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Discharge rate, A
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Number of channels for module test
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Charge rate, A
from 0.1 tо 4.5
Discharge rate, A
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Number of channels for module test
12
Charge rate, A
from 0.1 tо 4.5
Discharge rate, A
from 0.1 to 5 (limited to 50 W per channel)
The equipment complete set includes:
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MS-80104 Универсальный кабель с терминалами F
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Materials about MS801 to download:
Format
Name
Latest update
23/06/2026