A:AnswerForgot to turn my key into the neutral position and left my parking lights on my Scrambler 1100 on long enough to fully drain the battery. Bought this on sale at Best Buy and it jumped it right up, no problem. The voltage is fine. Had to take it to Ducati for service about a month or two after. They checked. Everything was good. Hope that helps!
A:AnswerExactly, you hook it to the dead battery, turn your car, and TA-DAAAAA, you can start it. You are going to be surprised, how many times you can use it. My car is a V6 and I was able to start it on a trip more than 6 times. So, a regular car you would start it maybe 10 times, and a Diesel one, maybe 4.
A:AnswerProbably (would depend on the boat). A typical boat it should work fine and we've started a number of boats for other people at boat landings with it.
A:AnswerIt's only 8000mah which may not seem like a lot of power but to me its 8 Amps which is no joke especially the the DC world.
However if you are putting a constant drain on the battery it will depend on the current draw as to how much drain is occurring and battery life.
Hope that helps.