: How to extend the life of the battery?
Batteries on yachts are generally maintenance-free, but there are ways to increase their effectiveness and longevity: keep them fully charged.
This can make the battery to maintain a long service life;
Check the battery at least every 30 days;
Clean battery connectors and wiring harnesses regularly.
Check whether the battery cable is properly connected to the terminal.
Tighten the terminal nut by hand and then tighten it by 1/4 turn with a wrench.
Check the electrolyte capacity of each battery in the battery pack.
Electrolyte capacity liquid level should be above the mark.
If the liquid level is below the mark, add distilled water until the electrolyte reaches the appropriate volume value.
Beware of overfilling the battery case with electrolyte.
Place the battery in a cool, dry place when charging for a long time.
Check the battery level every three months using a liquid hydrometer or voltmeter.
If the specific gravity is lower than 1.225 or the voltage is lower than 12.4, charge the battery.
