2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 412Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 412

ELECTRICAL Conventional Battery OCVOpen Circuit Voltage Test Battery voltage should be checked with digital multitesterReadings
measure electrolyte strength or specific gravityAs the battery goes through the chargedischarge cycle, the electrolyte goes
from heavy (more acidic) state at full charge to light (more water) state when dischargedThe hydrometer can measure state
of charge and differences between cells in multi-cell batteryReadings of 1.270 or greater should be observed in fully charged
batteryDifferences of more than .025 between the lowest and highest cell readings indicate need to replace the battery Measurement
at 80 NOTE: Subtract .01 from the specific gravity reading at 40 F Battery Load Test CAUTION To prevent shock or component
damage, remove spark plug high tension leads and connect securely to engine ground before proceeding Battery Hydrometer (PN
2870836) NOTE: This test can only be performed on machines with electric startersThis test cannot be performed with an engine