60ah is how many cca
Measure and check the car battery
Table of Contents
Car battery life
The car battery is one of the most important elements of a motor vehicle. Without a well-functioning car battery, the cold engine cannot be started without outside help.
As a rough guide for that Car battery life can according to ADAC a time span of about four to five years be considered. However, the service life of a car battery can also be influenced positively or negatively by the way in which it is handled.
Car battery maintenance
Newer car batteries are often referred to as maintenance-free. This can lead to the false assumption that such a battery no longer requires any maintenance. In fact, with a few simple steps you can essentially get to it Extension of the service life contribute to the car battery.
This is how the battery poles should always kept clean and with one Pole bold be completely lubricated. In this way you avoid running out of battery, especially during long periods of time Downtime, through leakage currents slowly discharge becomes.
If the vehicle is only for Short trips the car battery should be in the garage with one from time to time battery charger be charged overnight.
Measure the voltage of the car battery
If you have the Measure battery voltage there are a few important points to consider. The voltage measurement alone does not make a reliable statement about the Battery capacity. A is used for voltage measurement Multimeter.
If you want to measure the battery voltage, you should not do so immediately after a longer drive or do it directly after a manual charging process with a battery charger. In both cases the measured voltage will be too high as both the Generator of the vehicle as well as the battery charger has a higher charging voltage than the Nominal voltage of the battery (usually 12 volts).
The voltage of the battery should only be after a Service life of 4 - 8 hours or even better first after 24 hours Vehicle standstill can be measured. Only after this time does the battery have its actual status Rest voltage reached.
A voltage measurement is also falsified if it takes place shortly after a current has been drawn by a switched-on consumer. The measurement would then show a value for the voltage that is too low.
|100 %||> 12.85V|
|90 %||12.80 V|
|60 %||12.50 V|
|50 %||12.40 V|
|20 %||12.00 V|
|0 %||< 12,00="">|
Measure the capacity of the car battery
If you have the Measure battery capacity first, there is a very simple method that provides at least a rough assessment of the battery condition. If the vehicle is parked in the dark in front of the garage or in front of a wall, the headlights can be switched on and their brightness observed for a while.
If the After a short time, the brightness will noticeably decrease, this is a sure sign of one too low battery capacity. In addition, the experienced driver recognizes that the battery condition is too bad by the Starter intensity during the startup process. When the starter turns the engine only start with difficulty can, this suggests one too low capacity of the battery.
A better way to measure battery capacity is one controlled discharge. For this purpose, several consumers are switched on for a certain time when the engine is not running.
It is important here that the current intensity through the switched-on consumers must roughly correspond to the coefficient value (C value). The C value is printed on the car battery and gives you the time in hours (C1 = 1 hour, C10 = 10 hours, C20 = 20 hours).
With a battery capacity of 120 Ah (ampere hours) and a C20 value, this would be a current strength of 6 A (ampere) (120 Ah / C20 = 6 A) which can be drawn as a maximum.
Pay attention to this number when buying, because with a battery with 80 Ah (C100) only 0.8 A per hour can be drawn. But with a battery with 80 Ah (C20) it is already 4 A per hour. This means that the battery has a higher charging and discharging current.
An intact, fully charged battery with a capacity of 120 Ah could theoretically deliver a current of 6 A over a period of 20 hours. After that she would be fully discharged and would have one Rest voltage below 12 volts. To use a lead-acid battery that should only be half discharged at most, not to harm, let's cut the time in half to 10 hours.
From the Switch-on time the consumer for the C-value must have the Time stopped become. With a multimeter or a connected Battery computer is in regular time intervals the battery voltage measured.
When this tension dropped to 12 volts, must be measured at shorter intervals so that the Do not discharge the battery too deeply becomes. At the latest when the measured battery voltage is 11.5 volts, the Discharge attempt abortedso as not to damage the battery.
The ampere hours displayed on the battery computer are multiplied by 2 to determine the actual capacity of the battery. For example, if the battery voltage drops below 12 volts after 5 hours of discharge, the battery would still have a capacity of 60 Ah.
A battery with 120 Ah would still be intact if the stopped time until the undervoltage was reached were more than 8 hours. The existing capacity of the battery would then still be 96 Ah (at 8 hours).
Whom all this too complicated is can state and capacity also with one Car battery tester within a few Seconds determine. The device is simply connected to the car battery and immediately shows you the condition of the battery. Such devices are mostly also used in Car workshops used.
Vehicle battery tester for a load test
22,63 €incl. 19% statutory VAT.
43,99 €incl. 19% statutory VAT.
37,99 €incl. 19% statutory VAT.
Give jump-start help
Carelessness, for example if a consumer has not been switched off, can lead to the Engine no longer with the battery that is too deeply discharged can be started. In such a case you can get yourself from another vehicle Give jump-start help to let.
These are Vehicle starter cable required. The engine of the third-party vehicle should be running when starting, preferably at a higher speed. When using jump leads should the following rule must be observed:
- 1. Connect the red jump lead to the positive terminal of the discharged battery.
- 2. Connect the second clamp of the red jump lead to the positive terminal of the battery of the donor vehicle.
- 3. Connect the black jump start cable to the negative terminal of the battery of the donor vehicle.
- 4. Connect the second clamp of the black cable to the engine or body earth of the vehicle with the discharged battery (not to its negative pole).
- 5. After successful jump start, the cables are dismantled in reverse order.
The next trip should be either take a little longerto allow the generator to run the battery recharge can. If this is not possible, the discharged battery should be in the garage can be charged with a battery charger.
Jump leads for cars and trucks
Jump-start with a portable power bank
There is now one too Power bank to start the car. Of course, this has several advantages. So you need no second vehicle that has to give you start-up help and something like that Powerful power bank is also still relatively small and can be taken anywhere.
The jump starter comes with a Powerful lithium-ion battery fitted. 20 starting aids can be given with a fully charged battery. Some devices even do significantly more. The decisive factor is the ampere size that the jump starter device creates.
Many jump starters also have one integrated flashlight With Emergency lighting such as SOS or stroboscope. It is also possible via the integrated USB ports Charge your tablet, smartphone or other USB device.
When purchasing these devices one should give top priority to that security because 1000 amps and more is not to be trifled with. So the jump start device should have one Reverse polarity protection / short circuit protection own and be well made. A IP65 waterproof housing is also recommended.
The power bank is of course only suitable as a starting aid. You can with it do not charge batteries.
114,45 €incl. 19% statutory VAT.
189,95 €incl. 19% statutory VAT.
225,77 €incl. 19% statutory VAT.
268,98 €incl. 19% statutory VAT.
Charge the car battery with a charger
A preventive method against discharged batteries is the use of your own battery charger. A good charger with connection to your own socket is nice under 100 euros available in the stores.
A powerful one Car charger can the Charging power vary and adjusts them continuously the respective charge status of the battery. A good battery charger can too detect a defective battery. When charging an older battery, a powerful battery charger can even use a Desulphation initiate.
The This can increase the performance of a car battery and especially theirs Lifespan can be extended. A car battery life of over 7 years is quite possible.
Car charger for all common 12V car batteries
Wet battery, gel battery, AGM battery
Older types of car batteries are considered Wet batteries executed. Their characteristics are a positive pole with lead dioxide (PbO2) and a negative pole made of lead plates (Pb). Diluted sulfuric acid, in which the lead plates are completely immersed, serves as the electrolyte.
Run when loading and unloading chemical processes from. The respective state of charge of such a battery is indicated by a Battery acid tester measured.
Battery acid tester at Amazon
A Gel battery uses a gel as the electrolyte between the positive and negative electrodes. Oxygen is released at the positive electrode, which passes through the gel to the negative pole and is converted back into water there. A Gel battery is completely closed and has reinforced wallsin order to be able to absorb the excess pressure caused by the formation of oxygen.
At a AGM battery (Absorbent Glass Mat) the electrolyte is embedded in a glass fiber fleece with saturated sulfuric acid, which connects the positive and negative poles. That kind of battery does not contain any liquid more that accidentally exit after an accident could. A Another advantage of the AGM battery is their low internal resistance. This also makes the Self-discharge is limited to a minimum during longer downtimes.
Both types of batteries that Gel battery and the AGM battery, are under the Generic term VRLA batteries (valve regulated lead acid battery) summarized in technical trade. Car batteries will be constantly improved and regular performance tests subject. Very good test results achieve the VARTA car batteries.
Who one Measure and check battery should acquire some basic knowledge about the different types of batteries. What a battery powerful and for their actual purpose functioning power is the ability to be one in a very short span of time deliver high amperage to be able to.
This is the only way to achieve the required electrical power for a starter that comes from the product Voltage x current composed, are applied. Anyone who has mastered these fundamental relationships can also put together the right framework conditions for themselves, with one Load test (car battery tester) measure a battery and draw the right conclusions from correct measurement results.
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