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But lots of people find that they have to modify their car battery every 1 to 2 years.

And what can you do to prolong your car’s battery life?

Well… That’s what we’ll discuss in this article.

We’ll show you why automobile batteries die early…and what you can do to keep this from happening.

We’ll also offer you 8 easy tips and tricks to maximize the life span of your car’s 12 volt battery.

The tips we will teach you in this article will be simple to do…and anyone will be able to perform these (even if you know nothing about cars or car batteries).

So let’s get started! …

First, You Should Know That Every Car Battery’s Lifespan Has A Limit (but most people kill their battery well before it’s time)

Even if you take care of your car battery perfectly…it will still die 1 day.

This set lifespan is known as the battery’s”Calendar Life” and it’s completely independent of how many times the battery has been charged or discharged.

However, most car batteries never make it their full”Calendar Life”…

Instead, they die early due to poor maintenance and maintenance…that you can do something about.

Lead acid batteries are the earliest, most reliable, and most widely used form of rechargeable battery in the world.

  • Formatting is when the battery is new and has to be used gently.

  • Peak is the perfect performance stage, which we seek to keep for as long as you can.

  • Decline is a slow process, but one which gradually ends in the conclusion of the battery.

Batteries in decline can nevertheless be used for quite a while, but must be watched.

Around this time, you can either recondition the battery or keep a close eye on it and try to replace it before a problem arises (like being unable to begin your vehicle for work).

Tip 1: Do a monthly review of the battery terminals to be certain they’re clean and rust free.   One of the first problems most people have with their car battery is the build-up of rust around the terminals.   Corrosion destroys the connection between the battery and the vehicle and many batteries are replaced because of too much corrosive build up.   But often times, this is easily treated simply by pouring a small quantity of Cola or a DIY anti-corrosion glue (one part water to three parts baking soda) over the corroded areas. 

The acidity in the Cola or the alkaline properties at the DIY anti-corrosion paste will consume the rust away.   Make certain to allow it to dry, then rub some petroleum jelly on the terminals to prevent future corrosion.

Tip 2: Do not operate any car accessories (radio, lights, or electronics) before turning to the vehicle ignition and driving the car.   When the vehicle is on, the auto alternator generates electricity and charges the vehicle battery after the battery has a voltage drop.   But if the car isn’t on, and you are using the car’s electronics, you’re simply relying on the car battery to power those electronics. 

This is detrimental to the car battery because car batteries are not meant for this sort of use.

Rather, car batteries are meant to provide a sudden burst of power for ignition.  They are not made to offer prolonged power for electronics and other devices (that is what a deep cycle lead acid battery would be for).   Using your car battery for a battery which powers electronics, instead of a battery that just provides you a burst of power for ignition, will damage the battery and greatly shorten it’s lifespan if it’s repeatedly used in this fashion.   So avoid operating any automobile accessories or electronics while the car is off.

Tip 3: Make sure the car battery is secure and has great battery wires.   The battery needs to be secured at all times.  If a battery is jostling around it will be impaired and could short circuit.   This may ruin the battery and even damage your car whilst creating a security risk.   The same could happen when you have bad battery cables (or they’re not connected properly).  So check your cables and make sure they have a secure connection as well.

Tip 4: Insulate your car battery from extreme changes in temperature.  Protecting your car battery from large changes in temperature will help maximize the battery’s lifespan.   To do this you can use a car battery insulating material.   Newer model cars currently have these kits installed typically.  But if your car doesn’t have one, you can easily install one yourself.   Just make sure it fits your car’s battery compartment.  Generally the companies selling these battery insulation kits will have a form on their site where you can put in your car model and year, and it will tell you if your battery will fit their kit — like here (top of page).   These protective battery sleeves are typically made from plastic or an acid resistant, thermal resistant material.   These automobile battery insulation kits will insulate your battery and protect it while still allowing proper ventilation.

Tip 5: Fully charge your car battery at least once a week (use a car battery charger or interchange batteries if you have to).   Your car battery drains even when the car is off.  That happens because current is drawn from the battery by car accessories (lights, radio, etc.) or even the car computers.   This is the reason why people come home from long vacations and locate their car battery dead.  

Car battery chargers (regular or solar) will keep the optimum charge level of your car battery when the vehicle is not in use.   They do this by providing enough electricity for the car accessories and car computer, so they don’t always draw current from the car battery when the vehicle is off.   As you can imagine, these chargers are very useful…especially if you go on a trip or leave your car unused for a while.  They’re also useful if you go on a lot of short car trips (like to work and back each day) and never give your battery a chance to fully recharge.  Repeatedly doing this can dramatically enhance your battery’s life — unless you use a car battery charger or interchange batteries, leaving one at home to fully charge.   The main thing to remember with this tip is…make sure you fully charge your car battery at least once a week since it will greatly increase the life of your battery.  Do this using a charger, interchanging batteries…or simply going on a car ride long enough to recharge the battery.

Tip 6: Check your vehicle battery’s water level.   Most car batteries indicate if there’s a demand for water.   So check the car battery water level indicator frequently and when water is required, refill the battery with distilled water (and that is significant, ONLY use distilled water to refill your car battery).

Lead-acid batteries release hydrogen and oxygen gases when they are overcharged.   This causes two problems:

  1. It can be volatile.

Tip 8: Assess your vehicle’s alternator.   If you’re doing everything we have recommended in this article but your automobile batteries are dying early, you will want to look at your car’s alternator (or find a mechanic to check it).   If your alternator is bad it will results in ineffective recharging of your battery and dramatically shorten your battery’s lifespan.