A short while ago I gave a presentation on marne battery and charging systems to a group at a local marina. One item that we [...]

Battery State of Charge 100% = 12.7     Volts 90% =  12.5      Volts 80% =  12.4      Volts 70% =  12.3     [...]

Just in case you’ve been a little negligent in battery maintenance over the winter and your batteries won’t charge [...]

I have never been happy with the way that my own boat’s battery switch is wired and went looking [...]

Your batteries are the heart of your boat’s electrical system. They supply power for engine cranking and all of [...]

I was asked how to determine the battery size (capacity) for a typical engine starting battery. To that end [...]