Check the listing for details. Midtronics Celltron START Micro 505 XL Standby Generator & Car Battery Analyzer. Condition: Used. Listed at 399.95 USD. This is a used Midronics Celltron START Standby Generator & Automotive Battery Analyzer. These are used to test 6-volt and 12-volt batteries that are commonly used in standby generators and fleet truck applications.The unit is in good shape with scuffs, marks and wear on it. I installed a new 9-volt battery in the unit and connected the leads to some old batteries I had laying around. It properly detected voltage and ran amp tests on the batteries with no issues.Comes in the case with 4 battery terminal adapters and the instruction manual.This unit is also known as the Midtronics 505 XL Battery Analyzer.Listing Includes: Midtronics Celltron START Standby Generator/Fleet Truck Battery Analyzer (4) Battery Terminals User Manual Carrying Case. Powered by SixBit's eCommerce Solution