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Your car battery should last about 3 to 5 years…

But lots of people find that they need to change 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 report.

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

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

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

So let’s begin! …

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

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

This set lifespan is called the battery’s”Calendar Life” and it’s completely independent of how often the battery was charged or discharged.

After a battery reaches the end of its”Calendar Life” it will become unusable.

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

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

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

Lead Acid Batteries have three life phases — formatting, peak, and decline.

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

  • Peak is the ideal performance phase, which we seek to maintain for as long as possible.

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

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

Around this time, you may either recondition the battery or keep a close eye on it and try to replace it before a problem arises (like being not able to start your vehicle for work).

Tip 1: Do a monthly inspection of the battery terminals to be certain they are clean and corrosion free.   One of the initial 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 car and many batteries are replaced because of a lot of corrosive build up.   But often times, this can be easily treated simply by pouring a small amount of Cola or a DIY anti-corrosion glue (one part water to three parts baking soda) over the corroded areas. 

The acid in the Cola or the alkaline properties at the DIY anti-corrosion paste will eat the corrosion away.   Be sure to allow it to dry, then rub some petroleum jelly on the terminals to prevent future corrosion.

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

This is damaging to the car battery because car batteries aren’t meant for this type of use.

Instead, car batteries are meant to provide a sudden burst of electricity for ignition.  They’re not made to provide prolonged power for electronics and other devices (that is what a deep cycle lead acid battery could be for).   Using your car battery as a battery which powers electronics, instead of a battery that just gives you a burst of power for ignition, will damage the battery and significantly shorten it’s lifespan if it is repeatedly utilized 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 good battery cables.   The battery has to be secured at all times.  If a battery is jostling around it’ll be impaired and might short circuit.   This may ruin the battery and even cause damage to your car while creating a safety risk.   The same could happen if you have awful battery cables (or they are not connected properly).  So check your cables and be sure they have a secure connection as well.

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 insulation kit.   Newer model cars currently have these kits installed typically.  But if your car doesn’t have one, you can easily set up one yourself.   Just be certain 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 place in your car model and year, and it will tell you if your battery will match their kit — like here (top of page).   These protective battery sleeves are typically made of plastic or an acid resistant, thermal resistant material.   These automobile battery insulation kits will insulate your battery and protect it while still allowing appropriate ventilation.

Tip 5: Fully control 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 the car computers.   This is why folks come home from long vacations and locate their car battery dead.  

Car battery chargers (regular or solar) will maintain the optimum charge level of your car battery when the vehicle is not being used.   They do it by providing enough power for the car accessories and car computer, so that they don’t always draw current from the car battery when the car is off.   They’re also useful if you go on plenty of short car trips (like to work and back daily ) and never give your battery a opportunity to fully recharge.  Repeatedly doing this will dramatically shorten your battery’s life — unless you use a car battery charger or interchange batteries, leaving you at home to fully control.   The most important thing to remember with this tip is…make sure you fully charge your car battery at least once a week since it’ll greatly increase the life span of your battery.  Do this with a charger, interchanging batteries…or simply going on a car ride long enough to recharge the battery.

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

Tip 7: Do NOT overcharge your car battery.   Never overcharge your car battery. Lead-acid batteries release hydrogen and oxygen gases when they’re overcharged.   This causes two problems:

  1. It can be explosive.

  2. It also breaks down the composition of the water in the battery — that shortens its lifespan

Tip 8: Check your car’s alternator.   If you’re doing everything we have recommended in this guide but your car batteries are dying early, you will want to look at your vehicle’s alternator (or find a mechanic to check it).