1995 Johnson/Evinrude Outboards 50 thru 70 3-cylinder Service Manual, Page 235Get this manual

1995 Johnson/Evinrude Outboards 50 thru 70 3-cylinder Service Manual, Page 235

Battery Testing Battery electrolyte is acidichandle with careIf electrolyte contacts any part of the body, immediately flush
test can only be used when there is sufficient electrolyte above the battery plates to fill the hydrometer tubeDo not, however,
take readings 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 10F (6C) temperature changeFor each 1QF (6C) below
80F (2rC), subtract points from hydrometer readingFor each 1QF (6C) above 80F (2rC), add points to hydrometer readingAfter
correcting to 80F (2rC), 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