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23.06.2016
That’s why we always do an alternator test to be sure that the alternator is putting out enough power to keep your battery charged. Your battery provides required power to maintain the operation of accessories when the car engine is turned off.
The battery also supplements the power from the charging system during periods of high demand – like when you’re stuck in traffic with your headlights, wipers and blower motor all running!
The voltage regulator controls the voltage, keeping it within the proper operating range of your car’s entire electrical system. The starting system on your car includes the ignition switch, the starter relay or solenoid and the starter motor. A drained car battery can be started by attaching jumper cables to the battery of another car with a charged battery.
The battery in a car is used to power the vehicle during ignition and provide energy for the lighting system.
The glass mat kind of car battery is radically different from the VRLA, sealed, and flooded types of batteries. When storing sulfate batteries, it is important a person to ensure that they are always charged, preferably to the maximum. When you start to have electrical problems with your car, how do you tell whether the problem lies with the battery or the alternator?
Any actual physical damage to the body of the battery means that you should replace the entire unit at your earliest possible opportunity. In order to make sure your battery is in good condition you should check the top of your battery for dirt and electrolyte. Most people tend to obsess over the power of their engine, the speed of the car, or the looks of the body, but the battery may very well be the most crucial part.
If you go to start your car and it simply wont turn on, your vehicles battery made be one of the culprits. If you constantly need to jump-start your car, especially when it’s cold, you probably need your car battery replaced. These three components of the starting system consume more electrical power than any other system on your car. CCA or Cold Cranking Amps is a measurement to assure that your car battery had sufficient energy to crank the engine over when it’s cold.
The battery is usually charged by an alternator — a device that converts the mechanical energy from the engine into electrical energy.
In gasoline engines, it is also used to ignite the fuel, so this type of engine cannot work without a battery.
The most common is the flooded type, which is basically an arrangement of lead plates immersed in sulfuric acid in a pseudo-open reservoir. One type has safety valves that allow for the safe escape of hydrogen and oxygen gases generated during charging. Its composites are boron silicate glass mats saturated with electrolyte between the plates. One is the nickel metal hydride (NiMH), which packs a relatively higher energy within a unit of space. Discharged sulfate batteries tend to degrade by sulfating, which involves the formation of large lead-sulfate crystals in the batteries. I think the easiest answer I can tell you is to go to your local automotive store and have them check it.


If the voltmeter goes down, it's probably because the truck isn't getting the 2 extra volts from the alternator. For the last couple weeks, the voltmeter on the dashboard of my truck has been going back and forth between 14 volts (where it usually is) and 12 volts.
Whilst a failing battery will not generally result in your car breaking down on the road, it will prevent your vehicle from being started. Damaged batteries can leak in the engine and corrode other parts, so any sign that the battery’s casing is not in good condition should be taken seriously. Too much electrolyte on the top of the battery is usually caused by overfilling and is not a cause for concern – rather a sign that you should be more careful next time you fill your battery.
As these batteries use a mix of water and acid in the cells to form the electrolyte the water can evaporate during the summer months.
Usually you will only have to add distilled water to the battery and if you see that a cell has run completely dry then you should check the battery to make sure there are no cracks in the casing.
Your car battery powers multiple systems in your vehicle, from ignition to powered accessories to radios and lights. A freshly dead battery isn’t the greatest way to start your day, but at least it can be boosted. A chemical reaction between the battery fluid (electrolyte) and cells within the car battery produces electricity. Did you know that a bad alternator that’s not properly charging your car battery could cause this problem? Drawing on your car battery, the starter motor turns the engine over or cranks it until your car starts. This energy is then used to prompt reactions within the electrolyte of the battery, which is most commonly composed of lead oxide plates submerged in a mixture of sulfuric acid and water.
Diesel engines may work without batteries, if the initial electrical energy is provided at ignition. This type requires regular topping up with distilled water to compensate for the water lost as hydrogen and oxygen gases during the electrolysis process. There is another type of VRLA battery that doesn't have safety valves and instead has an additional catalyst surface on which the two gases recombine to form water again. By using the recombinant technology, they don’t lose hydrogen or oxygen, and they also store charge for a much longer period, losing only 1% to 3% monthly. Nearly every store will do this for free, since it is pretty easy if you have the right equipment. Whenever it drops down to 12, the battery light usually comes on. The truck seems to still drive okay, though, and I have never had a problem with it starting. If I am not mistaken, though, their ability to hold a maximum charge can diminish over time, so I would guess that car companies are looking for other alternatives. Like you mentioned, they are very expensive to buy brand new, but as long as the used ones are in good condition they should work for several years. We’d always advise that you do a quick visual inspection of your battery any time you open the bonnet of your car to check the oil, top up brake fluid or refill the car’s water tank. Equally you should replace frayed, worn or broken cables as soon as possible as these are a vital part of the engine’s starting system, carrying the charge that’s used to start the combustion process.
However, you will need to remove any dirt from the top of the battery as this can form an electrical bridge that can cause the battery to discharge when the vehicle is at a standstill.
Also never add acid to a cell that already contains electrolyte – this can damage the electrical balance of the battery and cause failure.


A working battery is what allows your car to start in the first place, by powering the starter motor.
As the alternator turns, it creates an electrical current that in turn charges the battery.
The best way way to asses your need for car battery services is to have your vehicle inspected by the experts Gary’s. They also went out of their way to provide me with additional paperwork to obtain a rebate from Yokohama for tires purchased at my previous visit. When a battery is in use, the sulfuric acid reacts with the lead oxide plates, to form lead sulfate.
A slight modification of this results in a different type of battery known as a sealed battery, which is basically a flooded battery which is sealed so that no water can be lost. They are usually two to three times more expensive than the normal flooded batteries, however.
The batteries should be stored in a cool place, as warm temperatures result in a higher rate of discharge and corrosion at the contact plates. Even if you have to buy two used ones, it's usually a lot cheaper than buying one new one. I didn't realize that there were so many different kinds of batteries in cars, though. This way you should be able to anticipate any problems with the battery before they happen, preventing that awkward moment in the morning where your car won’t start. Finally take a look at the fixings for the battery – any looseness could allow the battery to vibrate and the connections could be dislodged. Use a screwdriver to pull of the cell cover to inspect the electrolyte levels – this should be well above the plates. Recharging the battery involves reversing this reaction, which allows it to store energy chemically.
Another option is silica gel batteries, but due to their slow recharge rates, they are not common in cars. What exactly is the purpose of the alternator, and how long will it last if it is going bad? They will check your battery, alternator, and starter, and let you know if any of them are coming up with bad readings. Are there any easy tests to determine whether my battery is still good or if something else might be causing the problem? I wasn't thinking about all the new types of batteries that have come about for the electric cars. If the fluid does not reach this level then you should add distilled water – not tap water due to impurities within the liquid – to bring it up to the normal required level.
Without getting into too much chemistry, the chemical reaction that occurs in a battery gives off an electrical charge, one that your car uses to power its systems. When you add the water only use a plastic container or funnel as a metal one could touch the plates and cause the battery to discharge rapidly, which could injure you.



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