Lets say that your length of battery cable is connected to a 12 volt battery and has a voltage drop of 2 which is considered adequate for almost all electrical systems. Locate the battery within your boat and switch the marine battery switch to off while you remove the old battery.
What You Need To Know About Boat Batteries Onthelake Net
How to connect boat battery cables. Remove the positive cable from the solenoid relay or starter. Disconnect the negative cable from the engine block. Connect the positive cable to the solenoid relay or starter. If your circuit needs 100 amps of current the battery cable will be absorbing 2 amps 24 watts of current because of its resistance leaving 98 amps. At the source or battery you will read 12 volts using a voltage meter but at the other end of the cable your voltmeter will only read 1176 volts 12 volts 2. This is backwards from the way industrial compression lugs are crimped.
Technically with battery lugs the first crimp should be made at the end of the lug closest to the wire. Shoreline marine presents captain weekend loye futch a 25 year veteran of the marine industry and professional boat mechanic who will show you how to properly connect wires to a marine battery. Connect the neutral black port of your house battery to the distribution panel on your boat. Clean both battery posts with a wire brush. Once the battery is disconnected gently lift it out of the battery box and place it out of the way. I have done it backwards and never had a problem.
Connect the circuit breaker to the power connection on the control switch and connect the power connection to the engine. The second crimp is then made closest to the hole. Disconnect the battery cables starting with the negative cable before disconnecting the positive cable from the battery.
Gallery of How To Connect Boat Battery Cables
