1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 223Get this manual

1995 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 223

Battery Testing & Battery electrolyte is acidichandle with careIf electrolyte contacts any part of the body, immediately
charging batteryThis test can only be used when there is sufficient electrolyte above the battery plates to fill the hydrometer
tubeDo not, however, take reading immediately 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 points (0.004) with every 10 (6 C) temperature changeFor
each 10 (6 C) below 80 (2JO C), subtract points from hydrometer readingFor each 10 (6 C) above 80 (27 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 indicate battery is serviceable, but may require charging All cell readings uniform and below 1.225 specific gravity,