1994 Johnson/Evinrude "ER" 9.9 thru 30 outboards Service Manual, Page 290Get this manual

1994 Johnson/Evinrude "ER" 9.9 thru 30 outboards Service Manual, Page 290

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 checked 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 point (0.004) with every 10 (6 C) temperature changeFor each 10 (6 C) below 80 (27 C), subtract points
from hydrometer readingFor each 10 (6 C) above 80 (2JO C), add points to hydrometer readingAfter correcting to 80 (2JO C),
interpret readings as follows: All cell readings uniform and above 1.225 specific gravity indicates battery is serviceable,
but may require charging 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