A battery monitor is like a gas gauge, showing you how much electrical power is left (known as state of charge) as well as other vital signs. Today adding a monitor to a boat battery is easier than ...

There are two approaches to installing a battery disconnect. Electrical experts say either way is valid, and point out advantages/disadvantages to each approach. Install the disconnect switch on the ...

Make sure you know what your positive (+) and negative (-) battery terminals are, as the jumper cables will have to attach to them. Jumper cables are red and black for a reason. The black wire ...