Midtronics Celltron Genstart

The Midtronics Celltron Genstart combines more than 25 years of experience and innovation gained from selling essential tools to nearly every vehicle OEM in the world. With industry standard conductance technology for battery testing, the CELLTRON GENSTART is:

SAFE -- Worry-free operation anywhere, even in front of customers
FAST -- Accurate testing of the battery or electrical system in seconds
SIMPLE -- Proven user interface eliminates guesswork and user error to provide an accurate analysis every time.


Application compatibility:

  • Healthcare Facilities
  • Telecom & DC Plants online
  • All UPS applications
  • Utility switchgear & communications systems
  • Fleet vehicle management


Features & Benefits

The CELLTRON GENSTART advanced features include:

  • Multiple battery types and rating systems for generator systems and fleet vehicles
  • Large back-lit screen and improved user interface
  • Replaceable cable design


The CELLTRON GENSTART delivers solid benefits:

  • Save time and money with improved battery and electrical diagnostic accuracy
  • Quickly identify generator starting battery health
  • Identify potential battery problems before they occur



STN-640 Battery Conductance Analyzer Includes: STN-640 Celltron Genstart Analyzer, manual, lead stud adapter set, 4-ft cable set

CTS-655P Battery Conductance and Electrical System Analyzer with Integrated Printer Includes: CTS-655P Celltron Genstart Analyzer with integrated printer, manual, lead stud adapter set, 10-ft cable set


Available Accessories: 

A156 Universal Soft Carry-All Bag A207 4-ft Replaceable Cable A208 10--ft Replaceable Cable A033 Lead Stud Adapter Set (2 male, 2 female) A095 6-Pack Thermal Printer Paper* *Replacement paper rolls also available at most office supply stores A087 Infrared Printer with Charger (for STN-640), carrying case



Generator Start • Automotive • Motorcycle • Marine Cranking • Lawn & Garden • Group 31 • Commercial 4D/8D • 6 & 12 Volt batteries • 12 & 24 Volt charging systems


5-line Text/Graphical Backlit Display 

Operating Temperature: 

0°C to +50°C (32°F to +122°F) 


Test Range: 

CCA: 100-2000 BY 5 • CA: 100-2000 BY 5 • MCA: 100-2000 BY 5 • JIS#: By Part Number • EN: 100-2000 BY 5 • DIN: 100-1200 by 5 • SAE: 100-2000 by 5 • IEC: 100-1200 by 5 

Voltage Range: 

1Vdc – 30Vdc 


Cable Length: 

4-ft/122cm (STN-640) • 10-ft/305cm (CTS-655P) 


Power Requirements: 

Uses the power of the battery under test and 6AA internal batteries 



English • Spanish • French-Canadian • Portuguese 


Housing Material: 

Acid-resistant ABS plastic 



STN-640: 7.7” x 3.9” x 2.4” (19.5cm x 10cm x 5cm) 

CTS-655P: 10.6” x 3.9” x 2.4” (27cm x 10cm x 5cm) 



STN-640: 1.2 lbs (544g) 

CTS-655P: 1.7 lbs (771g)


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