2015 Kawasaki Jet Ski Ultra 310X SE Owners Manual - Page 170

jMAINTENANCE AND ADJUSTMENTS 169 Self-discharge Temperature 40°C (104°F) 25°C (77°F) 0°C (32°F) Approx. Number of Days from 100% Charged to 100% Discharged Lead-Antimony Battery 100 Days 200 Days 550 Days Current Drain Days from 100% Days from 100% Discharging Charged to 50% Charged to 100% Ampere Discharged Discharged 7 mA 10 mA 15 mA 20 mA 30 mA 60 Days 42 Days 28 Days 21 Days 14 Days 119 Days 83 Days 56 Days 42 Days 28 Days Lead-Calcium Battery 300 Days 600 Days 950 Days WARNING Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. Battery Sulfation A common cause of battery failure is sulfation. Sulfation occurs when the battery is left in a discharged condition for an extended time. Sulfate is a normal by product of the chemical reactions within a battery. But when continuous discharge allows the sulfate to crystallize in the cells, the battery plates become permanently damaged and will not hold a charge. Battery failure due to sulfation is not warrantable. Battery Maintenance It is the owner's responsibility to keep the battery fully charged. Failure to do so can lead to battery failure and leave you stranded. If you are riding your watercraft infrequently, inspect the battery voltage weekly using a voltmeter. If it drops below 12.6 volts, the battery should be charged using an appropriate charger (check with your Kawasaki dealer or visit buyKawasaki.com) at a rate (amperage × hours) that is indicated on the battery. If it is not possible to read the rate, charge the battery at an amperage that is about 1/10th of the battery capacity. j In extremely cold weather the fluid in an inadequately charged battery can easily freeze, which can crack the case and buckle the plates. A fully charged battery can withstand sub-zero temperatures with no damage.