Used to tear down starters at work (auto electric shop) and the moment you cracked that housing open you knew if it was fried or not...smell of burnt windings and enamel just filled the air
Don't low voltage run your starters...OR run them too long...
Big Metal+Big Battery=Lots of unhappy times in the 'long run'

I know that low voltage also plays havoc with solenoids. Seen quite a few stick in the engaged position because of low voltage.

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85 300CD
83 300TD
78 240D (daughter)

Because I just went through this discussion with several local owners today..

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ASE Master Mechanic
https://whunter.carrd.co/

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
2003 Volvo V70

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