The Local RCMP detatchment here operates a 21 prisoner transport truck
that is a newer GMC c7500 with the Isuzu diesel engine.

They need that thing to start anytime, everytime. They have a sure start system, where the trucks normal batteries operate like normal, but when they have to leave the truck sit for LONG periods in VERY VERY cold temps -50 and colder, northern Saskatchewan.

they did a test when one of the tech's came up with this

he had two additional 12V batteries in paralell isolated with a *1000AMP* capable solenoid. if they need extra juice they clip a switch and there's enough amps to crank that engine and fire.

five weeks -58 on a frozen lake and it fired up first time.

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RIP: 80 300SD
RIP: 79 450SEL
2002 E430 4matic (212,000km)
2002 ML500 'sport'

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