Engine Not Cranking? Here’s All You Need To Know About Choosing The Right Battery For Your Car

Anirudh Sk
October 18, 2018

Not being able to crank up your engine when with your friends might be one of the most embarrassing moments. However, while we end up cursing the car in times like these, it might not be the car’s fault except for the battery which is the only thing causing the problem.

The battery is one of the most crucial parts of a car. The tiny surge of spark that ignites your engine might prove important in the times that you need your vehicle the most. Hence, it is important to choose your battery carefully.

Ahead of diving into some of the technicalities of a car battery, it is important to familiarise with certain nomenclatures about the same. The basic parameters are Ampere-Hour (Ah) rating, Cranking Amps (CA), Cold Cranking Amps (CCA) and Reserve Capacity (RC).

The standardised voltage for electric system of cars is set at 12V which may differ in case of motorcycles. Some of the old motorcycles may have 9V systems which also has now been standardised to 12V.

The Ampere Hour rating on a battery tells about the amount of time for which the battery can provide power for a particular amperage. Higher the Ah rating, more powerful is the battery. When the engine is ignited it needs a short time of high amperage current to beat the inertia of the static engine to get it moving. The Cranking amps on the battery are the maximum amperage a battery can provide for 30 seconds at 0 degree Celsius.

Ampere and the CA rating are two of the most crucial elements of a car battery. Nevertheless, in order to maintain the health of the battery one should start his vehicle every two to three days and take it out for a spin at least once a week. Remember, long-standing vehicles always pays the price.

Choosing the right battery

Users’ manual is the Bible-

Every vehicle is always sold with a users’ manual which contains all the necessary information about the standard parts that go into the car. Every single detail about your battery, including its dimension, ampere-hour ratings, CA ratings. In case if the manual is lost, you can always look at the top of the existing battery in the car.

Playing around the Ampere hour rating-

It is always wise to buy a battery with the exact same ampere-hour rating as your old battery. Buying a low rated battery can cause you ignition trouble, especially during cold days. However, a higher rating is not healthy either. A higher rated battery would take longer to recharge and put a heavy load on the alternator.

Reserve Capacity-

A battery with good reserve capacity can decrease the pressure on the alternator, which means that even if the alternator of your car gives out, the battery will keep the electronics running for a longer period of time.

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