Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part - Car Batteries

Today's auto electrical systems are getting more intricate and are stressing the limits of current technology but they are basically the same design as 30 years ago. What can today's do-it-yourselfer do to keep from being electrically-challenged in the middle of nowhere?

A quick overview of your Porsche's electrical system would be a good start. The major components of your Porsche's electrical system are explained below, along with some troubleshooting tips.

The battery is a storage device, currently 12 volts, used to start the engine and help Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part the electrical accessories installed on your Porsche. The battery consists of six cells of stacked positive and negative lead plates, separated by insulators and immersed in electrolyte, which is a water and sulfuric acid mixture.

Each of Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part six cells "produces" 2. The chemical reaction created between the lead plates and the electrolyte creates dangerous, explosive gases that vent through the battery cover vents. Care should always be taken when charging or jump starting low batteries and whenever working under the hood of the car.

Always keep the battery clean to allow proper ventilation. Some batteries use a gel to replace the electrolyte for a somewhat safer battery and the use of "maintenance-free" batteries has eliminated the need for refilling the electrolyte. However, all batteries lose charging capacity over time Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part the loss of the electrolyte, deterioration of the plates and chemical breakdown of the connections.

Whenever your Porsche exhibits symptoms of a charging or starting system failure, the most basic test that should be performed first is a visual and voltage test of the battery. Knowing the exact condition of the battery is the best way to know whether or not to suspect other system components and can prevent the unnecessary installation of a starter Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part alternator, which cannot repair the vehicle until the battery is up to snuff.

To Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part the condition of a battery, very little high-tech equipment is really needed. A quick way to tell if a battery needs recharging is by observing the "eye" on the battery and being able to determine what the color of the eye is telling you.

Below is a chart of various battery manufacturers that use a colored eye, as well as what the Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part colors mean:. Before replacing any battery due to a failure, have the battery and the car's electrical system tested for proper Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part. Replacing a dead battery only to have another a few weeks later due to a weak alternator or a parasitic drain on the system is not only frustrating but can be expensive and dangerous as.

Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part average battery should last years in average climates but those in high heat or extreme cold areas may last only years. The replacement battery should always have the same or higher CCA rating cold cranking amps as the original and be of the same or compatible "group size" to fit the battery tray and cable connections. The alternator produces electricity used to maintain battery storage Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part and to help run all the electrical accessories, including the ignition and the engine control systems.

It is belt-driven by the engine and produces an alternating current ACwhich is converted internally to 12 volts direct current DC by the diode Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part or rectifiers. AC current cannot be stored but is much more efficiently produced, which is why cars no longer use generators but use alternators Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part convert the electricity to DC.

Most alternators now use internal voltage regulators to maintain the proper system voltage, from You should check your Porsche's repair manual or with your local dealer to obtain the exact proper voltage for your Porsche. Contrary to popular belief, an alternator does not constantly produce electricity. It cycles on and off as demand goes up and. The battery buffers it from the electrical demands of the car, and it only works enough to maintain system voltage.

However, with the demands placed on the system by heat and by extraneous electrical devices i. The average alternator now is lucky to last years, which is why a prematurely dead battery may actually be caused by a Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part alternator. And this doesn't include amperage requirements for items like cell phones, laptops, CD players, boom boxes or additional lights. Understanding the importance of having an Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part warning light for the alternator idiot light is crucial to catching problems early.

In most modern systems, the electrical current passing through the filament of the warning light is what energizes a circuit in the alternator to start charging.

If the light comes on, the wiring is okay but the alternator is defective; if the light still does not come on, the wiring to basba bs58040 80AH CAR BATTERY starterbatterie Maintenance-Free 580406074 NEW light circuit and the bulb should be checked.

Don't forget to check the fuse that controls the Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part circuit. This fuse could be labeled differently in various cars. It could be labeled "charging", "regulator", "meters", "gauges" or "engine". In some cars, if the fuse is out, the idiot light will come on but may not go off.

In others like GMa burned out fuse may make the warning light work in reverse order; that is, when the key is on, the light is off but as soon as the engine starts and the alternator starts charging, the light will come Renault Espace J11 Mk2 Mk3 Mk4 1984-2010 Bosch Bosch S4 Battery 74Ah. Checking out these simple circuits first can greatly reduce your troubleshooting time and unnecessary replacement of your alternator.

As we delve further into charge light indicators, we find that in some cases it is normal for the charge indicator light to come on when nothing is wrong with the alternator. According to information published by GM, any car may have a low voltage reading or lights that dim when electrical loads are heavy at idle.

Furthermore, this condition is normal and no repairs should be attempted unless a fault has been. Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part clarification, as a car idles for extended periods of time during high heat conditions, a number of things happen that contribute to "lowered" alternator output that coincides with physics and the design of the alternator:.

As heat within the alternator increases, the electrical resistance in the alternator also increases, which reduces the alternator's charging capacity. As temperature rises, the voltage setpoint of the regulator Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part lowered to reduce the chance of overcharging or "boiling" the battery.

This delays the load being placed upon the engine when starting up from a stop, so that the smaller engines in use today are not loaded down upon acceleration due to charging demands. This can delay the charging by up to 15 seconds. So an alternator rated for amps may only be able to produce 70 amps when hot at idle when there Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part 77 or more amps of demand on it.

If it can be considered normal for warning lights to glow while a healthy alternator is running, how do you know if the alternator is really good or if there are other problems lurking around? A thorough diagnosis is always the best route to determining whether or not the alternator is at fault, but there are times when diagnosis time is short and you still need a positive identification of the problem. Cases like this require a Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part tool to speed things up.

In the case of Delco CS series alternators, there Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part a tool available from Kent-Moore tools JBwhich isolates the alternator from the car's wiring harness and lets you Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part if the alternator is at fault or if there is a wiring problem elsewhere within the car's Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part harness.

The best thing about this tool, besides being compact and handheld, is that it doesn't require any interpretation of data by the operator. The little light on the unit lights or doesn't light depending upon whether the alternator is good or not.

Unfortunately, while this is a great little piece of equipment and there are other similar tools available, once you determine that the alternator is not the culprit, you still have to fix the electrical problem. The other major electrical component in your Porsche's electrical system is used only a few times a day but is the single largest power user and most critical to your Porsche's operation - its starter.

The starter is simply a DC motor that turns the engine crankshaft through the flywheel, starting the combustion process by creating compression within the cylinders. Starters can be of varying types and designs - gear-reduction types for higher torque, Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part types to reduce size and weight, or just plain, old-fashioned heavy starters. But whatever the type, they all function in the same basic way.

A slow cranking engine may be a Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part of a bad Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part and with age, that's more and more likely.

But on most cars today, it's due to low battery voltage, poor electrical connections at the battery or a failed relay or fusible Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part. Most starters will easily outlast a new vehicle warranty Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part it's not overused, if good connections are maintained and if it's not overheated through Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part and grime buildup.

Starting your Porsche with the major components turned off like the AC compressor, blower motor Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part high-powered stereos will greatly ease the Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part on the starter.

In fact, most new cars have "lock out" relays that will not allow the AC compressor and alternator to turn on until after the vehicle has been started.

But turning these power-hogs off before shutting off your Porsche is always a good precaution. Although the starter drive, or "Bendix" as it was commonly referred to, can be replaced separately from the starter assembly, it's rarely recommended anymore. Failure of Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part part is due to age, usage and heat stress, to which the entire starter has also been subjected, so that other parts are just as old and stressed.

It's quite common to replace the starter drive only to have to buy another starter in a few months because the brushes wore out, a magnet broke, the solenoid failed, among other common mishaps. Replace the starter as a unit and have the electrical system checked at the same time to prevent further problems.

Your Porsche's electrical system should be completely checked and tested every two years or whenever serviced for any type of driveability problem. Many problems associated with day-to-day driveability are caused by voltage variations and must be the first step in troubleshooting any problem.

This is due to the use of computerized controls in most cars these days Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part even quite minor voltage changes can alter the controls. Your Porsche's electrical system must be load tested to certain standards, which can be simulated by turning on all the accessories and lights for simple voltage drain but that is not Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part all-inclusive test.

Measuring circuit loads with an ammeter, circuit voltage drops with a DVOM, variable circuit load testing. The average do-it-yourselfer would have little need to purchase the more critical test equipment, so if voltmeter Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part doesn't pinpoint the problem, get a thorough checkup done from an auto electrical technician who knows your Porsche's.

You should allow a professional to do this test.

Porsche Vetech Battery 55Ah Electrical System Replacement Part | eBay

As a good starting point, though, most major chain auto parts stores offer a free service test in the hopes of selling you a battery or alternator that should be good enough to notify you of any major problems. Keep that battery clean! Here are a few quirky electrical problems - organized by car make - to help you troubleshoot your import car's electrical system idiosyncrasies:.

The starter on many late Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part BMWs incorporates a one-way clutch that allows the engine to spin faster than the starter during engagement. While this makes for smooth, quiet starting and gear engagement, it also provides opportunity for problems.

Many BMWs requiring a Bosch reman starter SRX are experiencing Sywtem starter failures due to the starter motor remaining engaged after the engine has started and the ignition key has been released. The mechanical portion of the ignition switch gets hung up in the Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part position and doesn't return to the Parf position.

When this happens, the one-way clutch in the starter allows the starter to continue spinning with the engine; prolonged use in this condition will overheat the starter causing permanent damage as well Electriczl draining the Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part. To correct this condition, the entire lock cylinder, steering lock and electrical switch unit must be replaced.

BMW has recognized Ford Escort Classic Aal Abl 1998-2000 Vetech Battery 55Ah Electrical Part a similar problem exists with s ALX and ALX Bosch reman alternatorswhere the battery runs down due to a milliamp draw on the battery caused by the trunk light switch.

Instead of coming up with a new switch, BMW suggests that the trunk light switch that Baytery connected to terminal "30" hot at Pprsche times be rerouted to terminal "R", which Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part only "hot" when the ignition switch is sent to Accy, Run or Start. Next, a length of. This may sound too simple and maybe it is. This is due to faulty door lock striker plates that have the light contact Electricwl built in.

Seems that Elechrical versions of these switches were leaky and when water, dirt, salt. If they have an alphabetic letter lower than "L", they need to be replaced with an improved switch 51 21 8 This situation is caused by an alternator pulley of incorrect diameter.

Porsche Car Batteries | eBay

Some Honda Accords suffer repeated alternator and battery failures due to a melted plastic 6-wire connector in the charging circuit wiring harness. The original charging circuit wiring does not have wire of Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part diameter to handle the maximum current of the alternator under repeated high charging Porsche 911 1970-1979 Vetech Battery 55Ah Electrical System Replacement Part. When replacing alternators Bosch reman alternator ALX on these cars, always inspect the condition of this connector as a part of the procedure.

It will be necessary to remove the windshield wiper fluid reservoir to gain access to the connector because it's located between the battery and the reservoir.

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