One thing about driving modern cars is that the lights turn off automatically so you don't have to worry about remembering to turn them off. Unfortunately for the first time, I forgot to turn mine off yesterday on the PZJ70 when I parked at work and was welcomed to dead batteries by the afternoon.
I have never jumped a dual battery 24V vehicle so I had to track down a 24V jump pack from the maintenance department of another company on site at work used for the tuggers to get my cruiser jump started.
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