It is important to keep the battery charged at 100%, recharging it every 2/3 weeks if you do not use your car frequently. Check the electrolyte level monthly when possible (unsealed batteries), and check the electrolyte density level to make sure that everything is alright. Otherwise, you can rely on the Jump Start Service in Singapore.
Clean the cover and the container if dirty and when doing this, check the clamps and grease them in case is necessary. If it is present, then, check any discharges of the battery case. In the case, during the tests recommended previously, you realize that the battery is apparently damaged, before replacing it you can try to recover it with a specific procedure even if the success is not always guaranteed.
When the battery does not seem to want to recharge, then it could be a start of sulfation then visit the nearest
24-hour car battery service. In this case, try to recharge it at very low current for 20-40 hours. The current must be about 1/50 of the battery rating. This procedure, in fact, could succeed in reestablishing the circulation of the current between the plates and solving the problem.
In case the battery seems to give less tension than necessary, even after a long charge, it may be useful to top up the electrolyte with pure acid instead of distilled water. The important thing is not to overdo the quantity and check the result with the densimeter.
As long as the car is running with sufficient engine time to balance the discharge and battery charge, no problems occur; otherwise if you listen to the radio with the car parked when the engine is off (waiting for you to free the level crossing), with the ventilation switched on to prevent the windshield from falling out, you soon run out of battery power no longer in efficiency.
Pay attention therefore to the indiscriminate use of devices with the engine switched off and always keep the battery under control. The batteries, therefore, require only a minimum of maintenance to remain in perfect condition for a long time.
Ideal, but not always feasible, is subjecting the battery to a slow pre-emptive charge before assembly. In cases where the car is equipped with accessories that need more energy, consider the possibility of measuring, with the help of a specialized technician of a workshop, their absorption and therefore the compatibility of the battery used with the increased need to be met.
Except in cases where the car is equipped with sophisticated amplified audio systems that involve the use of secondary batteries, the only battery supplied to the car is a sufficient reserve of energy capable of supplying all the electrical and electronic systems in use during driving, from the headlights, to the radio, to the rear window defroster device.
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