Why does a diesel truck need two batteries?
Why does a diesel truck need two batteries? Diesel trucks need two batteries so they can crank at a higher amp. This is needed because a diesel engine demands a high-resistance load to start successfully. In simple terms, a diesel engine needs much more power to turn the engine over than a gas engine; just under double the amount of energy, in fact. Why is the battery light on on my Ford F350? If your F350’s battery light came on while you were driving, but before you parked, it could be the alternator. If you didn’t see a battery light,...