Originally Posted by jevanb
Please explain?? Because I remove 1 battery when I take the truck to the track, so I can shed weigh. My diesel runs and starts just fine on 1 battery
A deep cycle battery by design is made for long discharge of amperage at a slow rate. This is done with larger lead plates within the battery. A car battery has very thin plates within the cells. This allows for rapid discharge of amperage needed to turn over the motor. With the deep cycle, if your using it to start your diesel truck where the demand for the cold cranking amps is double of what a gas engine is, you run a serious risk of over drawing your battery and greatly shorting its life. Not only that, but you are not supplying the right amount of power to your starter. Yes it is starting and everything is what you think is fine, but your making your starter brushes work overtime by not giving the right amount of power to do its job. Which shortens the life of your starter.
I'll say this, if it works for you, fine. But there are risks when you use something for something other than its intended purpose.
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