Dial Type Battery Hydrometer (1039)

• Condition: NEW
• Avoid dead battery and help to extend battery life.
• Test battery life hot or cold detects overcharge.
• Applicable: 6, 12, 24volts systems.
• Reads actual specific gravity for an accurate measurement of battery sate of charge.
• Float type has built-in thermometer for temperature correction.

Test the electrolyte in each cell. Squeeze the ball and draw the solution into the tester. Carefully hold the tester level and write down the reading. Squirt the solution back into the same cell. The testers are calibrated assuming a battery is at 80 degrees F. Add .04 to each reading for every 10 degrees above 80 and subtract .04 for every 10 degrees below. If you get a cell reading that differs from the others by .05 or more, replace the battery. A fully charged battery should have a reading of 1.265 or higher. If all the readings show fair or low (1.200 is low) but are consistent, recharge the battery.

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