Originally Posted by johndes
Just bought a 1991 Land Yacht Motor home and I need to replace the house batteries under the step. Are there any suggestions out there as to what is the best ones to buy and what the cost should be? Also what spark pluges are now recomended for the Chevy 454 in this coach? Thanks in advance
Hi John; In a nutshell, there are good batteries and not so good and defective from the start. As with everything else in this world, everyting is outsourced. Being in marine business for forty one years the truth can be told. The largest rate of failure stems simply from negligence, which includes lack of maintenance, undercharging and overcharging.
Last seven years I have sold Interstate exclusively. Every customer gets an education about do and do not, and that is what minimizes problems. It also must be said here, that I could not be any happier with the service provided by Interstate. My rate of returns is down to maybe 1 percent.
The reason for the sauces is not only the consumer education but the quality of the product itself. This success however could not have been possible without educating the consumer. One can buy the so called "best" brand battery, but without proper maintenance it will most likely fail within one year. With a exception of defects, all batteries fail for a reason as follow;
Overcharging; Good indication of overcharging is the need to add water often.
Deep cycle batteries should be charged at slow 5-10 amp rate with a charger that shuts down completely when the battery reaches full charge. Most of cheap chargers do not provide shut down feature, and that is what boils the battery creating hazardous fumes which are very corrosive and explosive.
In marine application I cannot help but to give Charging International lots of credit for the Quality of their product. We have used their chargers in boats for many years now without ever replacing one. From a single bank charger to four banks, each charge bank senses the condition of each battery separately, instead of all at the same time. No two of the same batteries will always need same amount of charge, this is where the advantage starts. Each bank has its own set of indicator LED's, plug it in and forget it.
Lack of maintaining a charge in batteries is equally destructive to a battery.
If you leave your battery in your TV without a full charge at least once a month over the winter, do not be surprised when the battery cannot be recharged comes Spring. Dirty or corroded terminals may overheat while charging. With the importance of charge rate I personally would not trust my Univolt to properly maintain my battery while unattended. This is why I have the Dual Pro by Charging International. Just about all Interstate batteries provide my customers with four years of service if maintained by Charging International chargers. If you need to add water often, you most likely have a overcharging problem. Also adding tap water instead of distilled will shorten battery life as well. I have also tried gel batteries and found them to be much too expensive and at higher rate of failure than acid batteries. The only advantage is that they do not produce fumes. Overcharging them is even more dangerous to the battery. Thanks, "Boatdoc"