3/1/2023 0 Comments Car battery indicatorIt may start the car for the moment, but the battery will likely fail again soon. But if the battery is old and weak, a jump start is not the solution. A jump start can rejuvenate the battery and bring it back to its normal strength level in those cases. Unplug your phone too, since every little volt counts. These are not necessarily indicators of a dying battery. To eke out every minute of charge, turn off as many electronics as you can: radio, air conditioning, heated seats, even the headlights if it's daytime. Once you turn the engine off, it might not come back on again. However, a more reliable way to check is with a voltmeter to determine the stabilised voltage or if the vent caps are removable a hydrometer to determine the specific gravity (SG) of the electrolyte. Use whatever charge is remaining in the battery to get somewhere safe, either an auto repair shop or your home. Most batteries have a State of Charge Indicator on top of the battery that will give you an on the spot diagnosis of the battery condition. If the battery isn't being charged, the electrical systems will start to fail. If there was enough juice for you to start the car, then you can safely drive the car on however much charge is remaining, but it won't last long - maybe 30 to 60 minutes max. Either way, it's something you want to check out. It could also mean there is a minor problem with the battery like corrosion. If it stays on while the car is running, it probably means there's something wrong with the alternator. The battery light comes on when you start your car, and it might linger for a second or two, but it usually turns off pretty quickly. So, the light is telling you "your alternator is not properly charging." It's not telling you "your battery is bad or needs to be replaced immediately." You don't have enough information yet. It looks like a little battery, or sometimes it says "Battery." A simple circuit looks at the voltage that the alternator is producing and turns the battery light on if that voltage is low. Because your car is so dependent on the battery, any car with a combustion engine and a 12-volt battery has a light on the dashboard that warns you if the recharging system fails.
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