Megger Torkel 910 Battery Load Unit

  • Performs load/discharge testing to assess capacity of batteries of 12V to 300V
  • Battery discharge at constant current (<110A), power (<15kW) and resistance (<3kΩ)
  • Safety features include internal alarm, auto-shutdown and external alarm input
More Info

Megger Torkel 910 Battery Load Unit

Designed for testing switchgear and other battery-powered equipment in high-voltage substations and industrial environments, the Megger Torkel 910 Battery Load Unit provides a safe, accurate way of performing load/discharge testing and thereby measuring a battery system’s real capacity.

The Megger Torkel 910 is suitable for assessing batteries of between 12V and 300V whilst the maximum current discharge is 110A. Further current capacity can be added by linking two or more Megger Torkels or adding a Megger TXL load unit to the circuit.

Object battery systems can be grounded or free-floating and batteries can be tested whilst in service. A DC clamp-on probe (sold separately) measures total battery current whilst maintaining a constant current level.

The user can choose between constant resistance, current and power discharge over impressive ranges or a pre-selected load profile whilst further options are given for features such as the alarm level and and shutdown point.

Safety is an important aspect of the Megger Torkel 910 which has an emergency stop and an input for an external alarm in addition to its internal buzzer alarm. It complies to IEC61010-1:2010 and IEC61010-2-030 for LVD as well as IEC613626-1 for EMC.

Results can be viewed in real time on the 7” digital touch screen and it is also possible to transfer them via a USB memory stick to a computer where they can be edited and printed out as a report.

The Torkel 910 comes with a standard cable set and carry case whilst its impressive measurement ranges for load/discharge testing - combined with robust safety and user-friendly features - make it an excellent instrument for assessing actual battery system capacity.

Key Features

  • Appropriate for battery systems from 12 to 300V
  • 110A maximum discharge
  • Discharge at constant power, current and resistance or pre-selected option
  • Batteries can be tested in service
  • Adjustable alarm and shutdown levels
  • In-built alarm and input for external alarm
  • Blocked airflow detection
  • Simple USB transfer to computer
  • 7” touch screen interface

What's In The Box?

  • Megger Torkel 910 Battery Load Unit
  • Megger Torkel 910 Battery Load Unit instructions
  • Mains cable
  • Cable set 2 x 3m, 25mm2 (GA-00550)
  • Soft case for cables (GD-00360)
  • Transport case 670mm x 400mm x 510mm (GD-00954)


  • Operating: 0℃ - +50℃, power derating over +35℃
  • Storage: -40℃ to +70℃
  • Humidity: 5% - 95% RH, non condensing


  • Instrument only: ETSI EN 300 019-2-7 class 7M2
  • Instruement in transport case: ISTA 2A


  • Operating: 3000m
  • Storage: 10000m
  • Encapsulation: 30m


  • LVD: IEC61010-1:2002 & IEC61010-2-030
  • EMC: IEC61326


  • Main voltage: 100-240V AC, 50/60 Hz
  • Power consumption: 200W (max)
  • Power interruption: 40ms (max)
  • Protection: Thermal cut-outs, automatic overload protection, emergency stop button
  • Dimensions: 519 x 315 x 375mm
  • Weight: 19.5kg
  • Display: 7" LCD, capacitive screen touch
  • Available languages: English, French, German, Spanish, Swedish

Current measurement

  • Display range: 0 to 2999.0A
  • Basic inaccuracy: ±(0.5% of reading +0.1A)

Internal current measurement

  • Range: 0 to 110A

Input for clamp-on probe

  • Range: 0 to 1000mV DC
  • Probe mV/A-ratio: 0.30 mv/A to 100.00mv/A
  • Input impedance: >1MΩ

Voltage measurement

  • Voltage: 0 to 300V DC
  • Inaccuracy: ±(0.5% of reading +0.1V DC)
  • Resolution: 0.1V
  • Sample rate: 10Hz, values are saved when change is >10mV

Time measurement

  • Inccuracy: ±0.1% of reading ±1 digit

Load section

  • Battery voltage 7.5V to 300V
  • Power: 15kW (max)
  • Load patterns: Constant current, constant power, constant resistance, current or power profile

Maximum current at common battery voltages

Voltage Torkel 910 Torkel 930
48V 110A 220A
110V 110A 136A
220V 68A 68A

Constant I

  • Torkel 910: 0 to 110.0A
  • Torkel 930: 0 to 220.0A
  • Inaccuracy: ±(0.5% + 0.2A)
  • Resolution: 0.1A
  • Ripple: ±0.4A

Constant R

  • Range: 300mΩ to 3kΩ
  • Inaccuracy: ±0.5%
  • Resolution: 100mΩ

Constant P

  • Range: 0 to 15kW
  • Inaccuracy: ±1% + 50W
  • Resolution: 10W
  • Ripple: ±200W


  • + 300V
  • - 0V
  • I EXT&≤ V: 1V DC, 300V DC to ground
  • Voltage sense: Impedance to the current terminals is > 1MΩ


  • Alarm relay contact: 28V DC, 8A, 250V AC, 8A
  • Alarm 9 V DC: 9V DC, 100mA

Communication ports

  • USB: USB connection for USB memory
  • Service: For service of the instrument