Quote:
Originally Posted by cRiPpLe_rOoStEr
Considering how high usually are the electrical loads on ambulances, it's quite surprising a 24 volt setup similar to most military vehicles and medium-duty commercial trucks is not implemented as standard.
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The problem is the cost of transition - same as with light duty vehicles. The bulk of automotive electronics are 12V so they are cheaper than low volume 24V or 48V systems.
While some MD commercial trucks in the USA have 24V battery systems they are still running 12V electronics. Only the charging / starting loop are 24V. For the cab and chassis components the voltage is stepped down to 12V - again to save cost.