What water should be added to a battery?
Add approved battery grade water to cover the plates by 10 to 15 mm. Only distilled or deionised water should be used. Acid should not be added unless electrolyte has been lost through spillage.
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Frequently Asked Questions
Practical answers to common questions about battery care, charging and maintenance.
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Powering progress with purpose.
How should the battery be kept?
Ensure the battery is kept clean and dry, and that the posts, terminals and cables are clean, tight and protected against corrosion. The battery must also be correctly located and secured in the vehicle.
How can I check the state of charge?
A hydrometer can be used to determine the specific gravity of the electrolyte. A fully charged battery normally records between 1.250 and 1.260, or approximately 12.6 volts when tested with a voltmeter.
Why does a battery become discharged?
Inadequate charging, a faulty alternator, loose or corroded connections, parasitic electrical loads and long periods without use can all discharge a battery.
Should a discharged battery be replaced?
A discharged battery should be charged and retested before it is discarded, unless its age or visible mechanical damage clearly warrants replacement.
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