2015 Kawasaki Jet Ski Ultra 310X SE Owners Manual - Page 169

168 MAINTENANCE AND ADJUSTMENTS j The battery installed in this watercraft is a sealed type and it is not necessary to check the battery electrolyte level or add distilled water. The sealing strip should not be removed after the specified electrolyte has been added to the battery during initial service. However, in order to maximize battery life and ensure that it will provide the power needed to start your watercraft, you must properly maintain the battery's charge. When used regularly, the charging system in your watercraft helps keep the battery fully charged. If your watercraft is only used occasionally or for short periods of time, the battery is more likely to discharge. Due to their internal composition, batteries continually self discharge. The discharge rate depends on the type of battery and ambient temperature. As temperatures rise, so does the discharge rate. Every 15°C (59°F) doubles the rate. Electrical accessories, such as digital clocks and computer memory, also draw current from the battery even when the key is switched off. Combine such "key-off" draws with hot temperatures, and a battery can go from fully charged to completely discharged in a matter of days. (4) To prevent the terminals from being disconnected by vibration during operation, do not use a one-touch coupler. Battery Characteristics j (5) When connecting multiple cable terminals, tighten the terminals securely so there is no clearance between the terminals. WARNING Loose battery cables can create sparks which can cause a fire or explosion resulting in injury or death. Make sure the battery terminal screws are tightened securely and the covers are installed over the terminals.