Midtronics GRX-5100 EV battery service tool


EV/HEV Battery Service Tool

The industry’s first and most fully-featured high-voltage EV/HEV battery service tool, the GRX-5100 performs full battery pack service for hybrid and electric vehicles.

  • Safely discharges energy from the battery pack
  • Individually balances battery pack modules to ensure optimal pack operation
  • Continuously monitors voltage and temperature during service
  • On-screen verification that the battery is properly connected and operations can safely begin
  • Captures vehicle VIN and generates a detailed battery pack status report




  • Software updatable via USB interface
  • 0 – 384 VDC compliant
  • Reverse polarity protected
  • Hard safety disconnect
  • Redundant systems monitoring, including battery module temperature
    • Throttles back current upon excessive temperature rise or restricted air flow
    • Terminates session when reaching temperature limit
  • Monitors high-voltage leakage to chassis
    • Terminates session upon excessive leakage

Battery Management Processes

Midtronics products are designed to meet a variety of battery and electrical system service requirements, but selected features on individual products may make them a better fit for your unique service applications. This product is particularly well-suited for these battery management processes:

Primary Uses

EV battery pack depowering icon

EV Battery Pack Depowering

EV battery module balancing icon

EV Battery Module Balancing

EV battery rescue charging icon

EV Battery Rescue Charging


  • AC Main Power
    • 100-240 VAC 50/60 Hz
    • 12A maximum
    • Continuously monitored for maximum charge rate
    • > 0.95 PFC
    • 89% efficiency
  • Control Inputs
    • RS-232 power
    • USB – A
    • USB – B
    • Wi-Fi

DISCHARGER: 0-7.5 amperes DC

CHARGER: 0-5.0 amperes DC




  • Independent CAN BUS (2)
  • LIN (1)
  • Digital I/O (8)


  • CE
  • UL 1012
  • CAN/CSA C22.2#107.1


    • 13 in H x 29 in W x 17 in D (33.02 m H x 73.66 cm W x 43.18 cm D)
    • Weight: 53 lbs (24.04 kg)
    • Shipping weight including accessories/cables: 75 lbs (34.02 kg)

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Midtronics works closely with individual customers to develop custom GRX-5100 solutions. Please contact your Midtronics account manager for more information.