1994 Johnson Evinrude "ER" 90 LV 120 thru 140, 185 thru 225, 250, 300 Service Manual P/N 500612, Page 339Get this manual

1994 Johnson Evinrude "ER" 90 LV 120 thru 140, 185 thru 225, 250, 300 Service Manual P/N 500612, Page 339

1Visual Inspection The first step in determining the condition of battery should be visual inspectionLook for conditions
after refilling the cells with waterThe battery must be charged, then check with hydrometerView the hydrometer with your
eye on the same level with the liquid surfaceThe float of the hydrometer must be freeMake correction for the temperatureSpecific
gravity will vary points (0.004) with every 10F (6C) temperature changeFor each 1QF (6C) below 80F (2rC), subtract points
from hydrometer readingFor each 10F (6C) above 80F (2rC), add points to hydrometer readingAfter correcting to 80F (27C)'
interpret readings as follows: All cell readings uniform and above 1.225 specific gravity indicates battery is serviceable,
but may require charg ing All cell readings uniform and below 1.225 specific gravity, charge fully and retest Variation of
more than 30 points (0.030) specific gravity between any two cells, indicates battery condition is questionableRecharge and