After having lived and worked around vessels for a considerable part of my adult life I'm continuously shocked how a lot of individuals end up placing a five year old vehicle battery in the rear of the vessel, hoping it can start their outboard as soon as they need it.
The use of inappropriate boat battery models in open water water craft is very common, and I speculate how many times it will get individuals into difficulty.
The discharge capabilities of a vehicle battery are massively different from that of the marine battery, that are intended to be able to lose, in some cases up to 50% of the charge without the chance of suffering permanent damage. This is not the case for the standard vehicle battery which is intended to be trickle charged by the use of an alternator, and the loss of more than 5% of its charge can result in permanent damage. Not a good type of battery to get you out of trouble on the open sea or on a great expanse of open water.
I have created a new website dedicated to the humble Boat Battery in the hope that site visitors will peruse the information supplied and go out and make a purchase of the right battery for their water craft. Using the right equipment is most important to maritime safety and ought to not be ignored.
So many individuals are much too complacent on what appear to be trivial issues, until they discover themselves in a grave situation which requires them calling for external assistance. The worst case situation is they don't even get to call for that. So check out the website, see if you find the info useful and get the acceptable boat batteries for your vessel.