There have been quite a few members asking about the safety of jump starting your ski/boat. While its not common practice to do this, there are times when you may get stranded and find there is no other choice. To jump for that purpose is o.k, but if you have a bad battery and jump it continously, just so the charging system will run the electronics of the ski, eventually, you will burn up your regulator.
To jump a battery, follow carefully. The vehicle (boat, car, tractor, helicopter) your starting from, must be a 12 volt DC (direct current) battery. This vehicle must not be running. Attach the jumper cables to that vehicle. Then, attach the positive to your ski/boat battery. Then, attach the ground to the engine block, preferably to the grounding lug at the engine, coming from your battery. This will keep a spark from arcing to your positive post and creating explosive conditions.
What the "superstition" is all about with this procedure, is that if the vehicle your starting from is running and you connect cables to it, your not sending 12 volts to your battery and electrical system, your sending anywhere from 13.5 to 14 volts. This may cause you to overload and short your electronic control module or mpem.
It's best to have a jump box available or if you own a boat, put a second battery in dedicated to your accessories, so that you won't run down your primary battery. You will need to use a switch to isolate your battery when the engine is off. Here is a link to the switch you see in most boat applications. http://www.boatmartusa.com/marinema...with-field-disconnect-p-433.html?currency=USD
Remember, a jump is normally used for emergency situations. Don't do it habitually, you may damage your rectifier/regulator.
To jump a battery, follow carefully. The vehicle (boat, car, tractor, helicopter) your starting from, must be a 12 volt DC (direct current) battery. This vehicle must not be running. Attach the jumper cables to that vehicle. Then, attach the positive to your ski/boat battery. Then, attach the ground to the engine block, preferably to the grounding lug at the engine, coming from your battery. This will keep a spark from arcing to your positive post and creating explosive conditions.
What the "superstition" is all about with this procedure, is that if the vehicle your starting from is running and you connect cables to it, your not sending 12 volts to your battery and electrical system, your sending anywhere from 13.5 to 14 volts. This may cause you to overload and short your electronic control module or mpem.
It's best to have a jump box available or if you own a boat, put a second battery in dedicated to your accessories, so that you won't run down your primary battery. You will need to use a switch to isolate your battery when the engine is off. Here is a link to the switch you see in most boat applications. http://www.boatmartusa.com/marinema...with-field-disconnect-p-433.html?currency=USD
Remember, a jump is normally used for emergency situations. Don't do it habitually, you may damage your rectifier/regulator.
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