Originally Posted by Carlo
I have had a Yamaha 150F for 4-5 years from new. The battery that was supplied with it (looks like Rulite? 110 AMP Leisure) has always seemed to struggle to turn the engine over with any conviction. It has never so far actually let me down but always cranks the engine very slowly. Having just attempted to start the engine after the winter (battery stored in the house) the battery will not give enough umph. I have charged it but I think I may need a new one. Which type should I buy and is a leisure battery the right type? Is 4-5 years service a good innings?
On marine engines you should use high capacity marine sealed batteries, if not used regularly for example in winter time you should recharge them at least once a month to top full power & remain in excellent charged condition. 4/5 years is a good life span.