If you have researched how batteries work or what you should look for when selecting the best high-performance battery, you're probably buried in information, some of which is conflicting. At BatteryStuff, we aim to clear that up a bit.
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You've probably heard the term KISS (Keep It Simple, Stupid). I will attempt to explain how lead acid batteries work and what they need without burying you with a bunch of needless technical data.
I have found that battery data will vary somewhat from manufacturer to manufacturer, so I will do my best to boil that data down. This means I may generalize a bit while staying true to purpose.
The lead acid battery has been used commercially for over 100 years. The same chemical principle used to store energy is basically what our great-grandparents used.
A battery is like a piggy bank. You'll have nothing left if you keep taking out and putting nothing back. This becomes apparent given the increase in electrical equipment installed in present-day vehicles.
Many vehicles now come with key fobs always searching for a key, Bluetooth, Wi-Fi, GPS, and whatever the next great device is, I&#;m sure it will be installed in a vehicle. All these electronics require a reliable power source, and poor battery conditions can wreak havoc on electrical systems.
Did you know the average auto has 100 - 120 pounds of wire in the electrical system? Look at RVs and boats with all the electrical gadgets that require power. It wasn't long ago when trailers or motor homes had only a single 12-volt house battery.
Today, recreation vehicles can come with power inverters up to watts, which requires a large RV battery pack. The current BatteryStuff.com RV uses two 6v L16 batteries, equaling 12v 480 AH, and we still have a hard time going a whole weekend without turning on the generator to charge the batteries!
Average battery life has become shorter as energy requirements have increased. Depending on the depth of discharge, battery life can range between 6 to 48+ months&#;yet only 30% of all batteries reach the 48-month mark.
When it comes to maintaining the battery, we recommend a smart battery charger. However, a solar charger might be a better option if AC power is unavailable where you store your equipment.
If you can grasp the basics, you'll have fewer battery problems and will gain greater battery performance, reliability, and longevity. I suggest you read the entire tutorial; however, I've indexed all the information for easy reference.
The lead acid battery is made up of plates that contain lead, lead oxide, and other various elements used to change density, hardness, porosity, etc. A liquid or, in some cases, a gel solution called electrolyte is added to the battery, which is approximately 35% sulfuric acid and 65% water solution. This solution causes a chemical reaction within the battery that produces electrons.
When you test a wet cell battery with a hydrometer, you are measuring the amount of sulfuric acid in the electrolyte. If your reading is low, that means the chemistry that makes electrons is lacking. So, where did the sulfur go? It is pulled to the battery plates during discharge and returns to the electrolyte when you recharge the battery.
You must think safety when you're working around, and with, batteries. Remove all jewelry. (After all, you wouldn't want to melt your watchband while you're wearing it!) The hydrogen gas that batteries make when charging is very explosive. We have seen several instances of batteries blowing up and drenching everything in sulfuric acid. That was no fun, and would have been a good time to use those safety goggles hanging on the wall. Heck, you could even break out your disco outfit. Polyester isn't affected by sulfuric acid, but anything with cotton will be eaten up. If you don't feel the need to make a fashion statement, just wear junk clothes&#;after all, polyester is still out of style.
When doing electrical work on vehicles, it's best to disconnect the ground cable. Just remember that you're messing with corrosive acid, explosive gases and hundreds of amps of electrical current.
Basically, there are two types of lead acid batteries (along with three sub categories). The two main types are starting (cranking), and deep cycle (marine/golf cart). The starting battery (SLI starting lights ignition) is designed to deliver quick bursts of energy (such as starting engines) and therefore has a greater plate count. The plates are thinner and have somewhat different material composition.
What is a deep cycle battery? The deep cycle battery has less instant energy, but greater long-term energy delivery. Deep cycle batteries have thicker plates and can survive a lot of discharge cycles. Starting batteries should not be used for deep cycle applications because the thinner plates are more prone to warping and pitting when discharged. The so-called Dual Purpose Battery is a compromise between the two types of batteries, though it is better to be more specific if possible.
The gel cell and the AGM batteries are specialty batteries that typically cost twice as much as a premium wet cell battery. However, they store very well and do not tend to sulfate or degrade as easily as wet cell. Although not impossible there is little chance of a hydrogen gas explosion or corrosion when using these batteries; they are the safest lead acid batteries you can use. Gel cell and some AGM batteries may require a special charging rate. If you want the best and most versatile battery, then consideration should be given to the AGM battery type. AGM batteries are great for applications such as Marine, RV, Solar, Audio, Power Sports and Stand-By Power just to name a few.
If you don't use or operate your equipment daily, AGM batteries will hold their charge better than other types. If you must depend on top-notch battery performance, spend the extra money. Gel Cell batteries still are being sold, but AGM batteries are replacing them in most applications.
There is common confusion regarding AGM batteries because different manufactures call them by different names. Some of the more common names are "sealed regulated valve," "dry cell," "non-spillable," and "valve-regulated lead acid" batteries. In most cases, AGM batteries will give greater life span and greater cycle life than a wet cell battery.
SPECIAL NOTE: It's common for individuals to use the term "gel cell" as a generic term when referring to sealed, maintenance-free batteries, much like one would use Kleenex when referring to facial tissue. As a result, we get lots of requests for a gel replacement battery or gel battery charger when in fact the battery is an AGM. For this reason, we always recommend verifying the battery type when purchasing a replacement or looking for a charger to maintain the battery.
The wet cell comes in two styles: serviceable and maintenance-free. Both are filled with electrolyte and are basically the same. I prefer one that I can add water to and check the specific gravity of the electrolyte with a hydrometer. Also, the serviceable type tends to last a little longer since you can add distilled water when evaporation occurs and treat the battery with an inhibitor such as Battery Equaliser to prevent sulfation. In contrast, with the maintenance free, you cannot do either of the servicing features.
The Absorbed Glass Mat construction allows the liquid electrolyte to be suspended in a fiberglass matting. This matting surrounds the plate&#;s active material and in theory this enhances both the discharge and recharge efficiency. AGMs are commonly manufactured for applications that include high-performance engine starting, power sports equipment, deep cycle, solar and storage battery. The larger Deep Cycle AGM Batteries we sell typically offer great cycle life if recharged before they drop below the 50% discharge rate. When deep cycle AGM batteries are discharged to a rate of no less than 60%, the cycle life will generally increase by 300 plus cycles.
The Scorpion motorcycle batteries we carry are a meet or exceed the specification for the OEM battery. We also carry the Motocross branded batteries for those that have brand loyalty to the OEM battery as they are Yuasa&#;s aftermarket battery.
The gel cell battery is like the AGM battery in the fact that it is considered non-spillable, but the electrolyte is not a wet liquid. The electrolyte in a gel cell has a silica additive that causes it to set up or stiffen. In most cases the recharge voltage on gel battery is typically lower than a standard flooded wet cell battery or AGM battery, apart from those made by MK Battery where their 12-volt batteries can accept up to 14.6 volts. Most gel batteries can only be charged as high as 14.2 volts per 12-volt battery and are probably the most sensitive battery in terms of adverse reactions to over-voltage charging. Gel Batteries are best used in VERY DEEP cycle application and may last a bit longer in hot weather applications or application where the battery gets excessively discharged. If the incorrect battery charger is used on a gel cell battery, poor performance and premature failure is certain.
The new premium battery on the market is the Lithium battery, often referred to as a Lithium-Ion or LiFePO4 battery. In most cases, they are the same battery as Lithium-Ion is the parent category of the LiFePO4 battery, so some manufacturers use the parent term vs. the specific term.
Deep cycle lithium batteries generally offer up to 3x the cycle life compared to lead acid batteries. Most are designed with a long service life of 10+ years. Lithium also offers a 60% reduction in weight compared to lead-acid batteries.
For comparison, our best lead acid battery is a Lifeline AGM battery that offers about + cycles at 50% depth of discharge. The BSLBatt Lithium Battery we carry offers over cycles at a 50% depth of discharge and up to cycles at a 30% depth of discharge. They are designed for a 15 to 18-year service life, whereas a Lifeline is estimated to have about a six-year service life.
This article covers the Lithium topic from the deep cycle battery perspective. If you are looking for a starting battery, we offer plenty of choices for motorcycles, ATVs, and various other powersport applications. You can learn more about lithium batteries for powersport applications via our Lithium Battery Buyers Guide.
All of these terms are widely used by battery manufacturers. Look under the hood, and you will most likely see a battery rated with one or more of these terms. The first two in the list below are cranking terms, and the second two are capacity terms. Let's break them down!
Cold cranking amps is a measurement of the number of amps a battery can deliver at 0°F for 30 seconds and not drop below 7.2 volts. So a high CCA battery rating is especially important in starting battery applications, and in cold weather. This measurement is not particularly important in deep cycle batteries, though it is the most commonly "known" battery measurement.
Cranking Amps are measured at 32°F. This rating is also called marine cranking amps (MCA). Hot cranking amps (HCA) is seldom used any longer but is measured at 80°F.
Reserve Capacity is a very important battery rating. This is the number of minutes a fully charged battery at 80°F will discharge under a 25 amp load until the battery drops below 10.5 volts.
An Amp/Hour is a rating usually found on deep cycle batteries and is a capacity rating. The standard rating is a based on how many amps you can pull out of the battery over a 20-hour period. For a 100 AH rated battery this means you can draw from the battery for 20 hours, and it will provide a total of 100-amp hours. That translates to about 5 amps an hour (5 x 20 = 100). However, it's very important to know that the total time of discharge and load applied is not a linear relationship. As your load increases, your realized capacity decreases. This means if you discharged that same 100 AH battery by a 100-amp load, it would not give you one hour of runtime. On the contrary, the perceived capacity of the battery will be that of 64-amp hours.
A properly maintained battery is important for the ultimate in service life. Consider these points on a regular basis:
This can be done in more than one way. The most accurate method is measurement of specific gravity and battery voltage. To measure specific gravity, buy a temperature-compensating hydrometer. To measure voltage, use a digital D.C. Voltmeter. A quality load tester may be a good purchase if you need to test sealed batteries.
For any of these methods, you must first fully charge the battery and then remove the surface charge. We recommend letting the battery sit for several hours to remove the surface charge (I prefer at least 12 hours). Letting the battery sit gives you the most accurate result on how the battery will normally act. However, if you need to remove the surface charge faster it is possible to discharge the battery for several minutes. For deep cycle batteries you could simply power the device that uses the battery for several minutes. For starting batteries simply powering the headlight using the high beam can work as well. Once the surface charge has been removed you can begin testing.
State of ChargeSpecific GravityVoltage 12V 6V 100% 1.265 12.7 6.3 75% 1.225 12.4 6.2 50% 1.190 12.2 6.1 25% 1.155 12.0 6.0 Discharged 1.120 11.9 6.0
Load testing is yet another way of testing a battery. A load tester removes amps from a battery much like starting an engine would. Some battery companies label their battery with the amp load for testing. This number is usually half of the CCA rating. For instance, a 500 CCA battery would load test at 250 amps for 15 seconds. However, most load testers will either allow you to input the CCA or in the case of an analog tester it will show you a graph the battery should test at.
A load test should only be performed when the battery is at near or full charge. If you don't own or want to buy a load tester, then simply charge the battery, wait 12 hours, and then take it to an automotive shop for testing. Avoid taking a discharged battery to an automotive shop for testing as the test will only indicate something you already know.
The results of your testing should be as follows:
When buying a new battery, I suggest you purchase a battery with the greatest reserve capacity or AH rating as possible. Of course, the physical size and terminal type must be a consideration. You may want to consider a gel cell or an absorbed glass mat (AGM) rather than a wet cell if the application is in a harsher environment, or the battery is not going to receive regular maintenance and charging. AGM and Gel cell batteries typically have a lower self-discharge rate so they can last longer when not being maintained.
Be sure to purchase the correct type of battery for the job it must do. Remember that engine starting batteries and deep cycle batteries are different. Freshness of a new battery is very important. The longer a battery sits the more damaging sulfation build up there may be on the plates. Most batteries have a date of manufacture code on them. While the date code isn&#;t always apparent many manufacturers or dealers will indicate the month with a letter, such as the letter with "A" being January. The letter is then followed by a number such as &#;4&#; corresponding with the year . C4 would tell us the battery was manufactured in March . Remember the fresher the better. The letter "I" is not used because it can be confused with the number 1.
As with most warranties, they are often favored by battery manufacturers. Suppose you buy a 60-month warranty battery, which lasts 41 months. The warranty is pro-rated, so when taking the months used against the total retail price of the battery, you end up paying about the same money as if you purchased the battery at the sale price. This makes the manufacturer happy.
What makes me happy is to exceed the warranty. As of the writing of this article, we currently carry motorcycle and ATV batteries by Scorpion and Motocross that come with a replacement warranty. For deep cycle batteries, the MK Battery and Universal Battery line currently have a 1-Year Replacement, and some of our higher-end manufacturers we carry offer higher warranty terms depending on their installed applications.
If you want to learn more, please visit our website Features Of Sealed Lead Acid Batteries.
The average battery life has become shorter as energy requirements have increased. Two phrases I hear most often are "my battery won't take a charge," and "my battery won't hold a charge." Only 30% of batteries sold today reach the 48-month mark. In fact 80% of all battery failure is related to sulfation build-up. This build-up occurs when the sulfur molecules in the electrolyte (battery acid) become so deeply discharged that they begin to coat the battery's lead plates. Before long the plates become so coated that the battery dies. The causes of sulfation are numerous:
There are ways to greatly increase battery life and performance. All the products we sell are targeted to improve performance and battery life.
An example: Let's say you have "toys" such as an ATV, classic car, antique car, boat, Harley, etc. You most likely don't use these toys 365 days a year as you do your car. Many of these toys are seasonal, so they are stored. What happens to the batteries? Most batteries that supply energy to power our toys only last 2 seasons. You must keep these batteries from sulfating or buy new ones. We sell products to prevent and reverse sulfar buildup on batteries. The BatteryMINDer products are patented electronic devices that reverse and prevent sulfation. Also Battery Equaliser, a chemical battery additive, has proven itself very effective in improving battery life and performance. Other devices such as solar trickle chargers are a great option for battery maintenance.
Most vehicles have clocks, engine management computers, alarm systems, etc. In the case of a boat, you may have an automatic bilge pump, radio, GPS, etc. These devices may all be operating without the engine running. You may have parasitic loads caused by a short in the electrical system. If you are always having dead battery problems, most likely the parasitic drain is excessive. The constant low or dead battery caused by excessive parasitic energy drain will dramatically shorten battery life. If this is a problem you are having, check out PriorityStart! battery switches to prevent dead batteries before they happen. This special computer switch will turn off your engine start battery before all the starting energy is drained. This technology will prevent you from deep cycling your starting battery.
Remember, for proper battery maintenance you must put back the energy you use immediately. If you don't, the battery sulfates, which will affect performance and longevity. The alternator is a battery charger. It works well if the battery is not deeply discharged. The alternator tends to overcharge batteries that are very low and the overcharge can damage batteries. In fact, an engine-starting battery on average has only about 10 deep cycles available when recharged by an alternator. Batteries like to be charged in a certain way, especially when they have been deeply discharged. This type of charging is called 3-step regulated charging. Please note that only special smart battery chargers using computer technology can perform 3-step charging techniques. You don't find these types of chargers in parts stores or big box stores.
While that was a detailed look at battery types and how to maintain them, there's always more to learn.
Choose Your Battery
You know replacing car batteries is a critical part of your vehicle's maintenance, but do you know what to look for in buying a car battery? There are many factors to consider, and your choice of battery could affect your vehicle's performance for years to come.
Read on to learn what types of car batteries there are, the most important car battery features to consider, and which battery we recommend to meet your high-performance needs.
Are all car batteries the same? If you're not used to changing your own car battery, you might be surprised to learn that there are a lot of varieties to choose from! Fundamentally, most batteries work the same way: by turning chemical energy into electrical current. But the main differences in battery types and sizes come from how they're constructed.
The most common battery type &#; flooded lead-acid batteries &#; have been used for decades. Also known as wet cell batteries, these conventional batteries consist of six cells, each containing lead plates submerged in a sulfuric acid/water solution called electrolyte.
Each cell produces about two volts of electricity so that the whole battery provides approximately 12 volts. Unless you drive a vintage car (pre-s), almost all cars use 12-volt batteries.
There are two common types of flooded lead-acid batteries:
Starting, Lighting, Ignition (SLI) Battery: These batteries are the most basic, and are what most cars come installed with from the factory. SLI batteries are reliable for starting your engine and powering basic accessories like headlights and wipers.
With older SLI batteries, you may find that you have to occasionally top off the electrolyte solution with distilled water to keep it running properly. These batteries must also be installed vertically to prevent spillage.
Enhanced Flooded Battery (EFB): EFBs are essentially a higher-performing type of SLI battery and are often used in vehicles with start-stop technology. They function the same as SLI batteries, but are sealed to improve battery endurance. Enhanced flooded batteries usually last twice as long as conventional SLI batteries and are a good entry-level battery for cars with start-stop technology.
Sealed batteries, like EFBs, are less susceptible to the effects of heat and evaporation and are referred to as "maintenance-free" because they typically don't need topping off with water.
Like flooded batteries, valve-regulated lead-acid batteries generate electricity using lead submerged in an electrolyte solution. The difference with VRLA batteries, however, is that they are completely sealed.
They don't vent gases and are less likely to spill, no matter how they are placed inside a car. For this reason, VRLA batteries are generally considered low maintenance, safer options for many vehicles.
The two most common types of VRLA batteries include:
Gel Cell Battery: Gel cell batteries &#; also known as dry cell batteries &#; have silica inside the electrolyte solution, turning it from a liquid into a gel. Not only does this prevent them from spilling, but it also makes gel cell batteries more resistant to high temperatures and evaporation. This means they have a longer cycle life than conventional batteries and greater resistance to vibrations and shock.
While some gel cell batteries are available for automotive use, most people opt for the higher-performing AGM battery as their go-to choice for VRLA batteries.
Absorbent Glass Mat (AGM) Battery: AGMs represent the latest and greatest in lead-acid battery technology. Rather than a free-floating electrolyte solution like in SLI and EFB batteries, AGM batteries use fiberglass separators to absorb the electrolyte solution and hold it in place.
AGMs are designed to have a very long life and can withstand repeat draining and recharging cycles much better than conventional batteries. They are also better at holding a charge through long periods of disuse and are more likely to recover from a deep discharge.
These qualities make AGM batteries ideal for modern cars with high power demand. But this enhanced performance comes at a price. According to Consumer Reports, you can expect to pay 40-100% more for AGM batteries than conventional batteries.
While the above battery types cover what most people will have to choose from, there are a few other types of car batteries worth mentioning, such as:
Deep Cycle Battery: Deep cycle batteries &#; also called marine batteries &#; are best for delivering sustained, low current power over extended periods of time. They get their name from their ability to repeatedly recover from cycles of deep discharging and recharging without suffering damage as conventional batteries would.
Deep cycle batteries are not suited for cars, trucks, or SUVs, but rather vehicles like RVs, boats, and golf carts that need to power electronics without an engine running.
Lithium-Ion Battery: Lithium-ion batteries are the standard batteries for most modern hybrid and electric vehicle high voltage battery packs. Lithium-ion batteries store more energy, charge faster, are lighter, and last longer than their conventional counterparts. Some newer vehicles come equipped with a 12-volt lithium-ion battery from the factory.
When searching for a new car battery, there isn't a singular "best" car battery to buy. Instead, it's a question of which battery is best for your vehicle's specific make and model? Here are a few considerations when choosing the best battery for your car:
The BCI number is the first and most important thing you should look for when choosing a new battery. BCI stands for Battery Council International, an organization that standardized how battery sizes and terminal positions are labeled.
The BCI number indicates the fit of your battery &#; its dimensions (length x width x height) and the location of its terminals. Terminals can either be placed on the side (side-post batteries) or on top of the battery as either standard or recessed top-post terminals.
A BCI number of 35, for example, indicates that the battery has top terminals and fits most Japanese brands, including Honda, Nissan, and Toyota. BCI numbers are essential to get right as the wrong number may result in a battery that does not secure properly in the battery tray or whose terminals are unreachable by the battery cables.
Since there are many different BCI numbers, your best bet is to look at the number listed on your current battery. You'll also want to double-check the manufacturer-recommended BCI number in your owner's manual before committing to a new battery.
Cold-cranking amps measure the number of amps available for 30 seconds at 0°F. That's it! CCAs are a general gauge for how well a battery performs in extremely cold weather.
So, is a higher CCA battery better? Not necessarily. A higher CCA rating simply means the battery can provide more juice when it's really cold outside. Just because a battery has a CCA of 850 doesn't mean it will use all that amperage. Rather, it will use the minimum amount of energy required to get your engine going. A super high CCA rating doesn't hurt, but going further than the car manufacturer&#;s CCA specification will only have limited value.
One sign of a quality car battery is the offered warranty. Most warranties typically include a free replacement period and a limited performance warranty. Batteries with longer warranties tend to be more reliable.
An extended warranty not only protects you for longer, but it also indicates that the manufacturer is confident in their product. DieHard® Platinum batteries, for example, offer an impressive 4-year free replacement warranty.
Getting your battery installed by an expert technician at your local Firestone Complete Auto Care can help you avoid mistakes that might void your battery's warranty down the road.
Whether you've been using a standard SLI battery or a heavy-duty AGM battery, the safest choice is to stick with the same type for your new battery. However, if you're looking to get a battery with a longer life and more CCAs that can handle extended disuse better than a conventional SLI, consider the DieHard Platinum AGM. Just make sure you've got the correct BCI number for your vehicle.
What you shouldn't do is downgrade battery types. If your newer car model came with an AGM battery, for example, replace the old battery with another AGM. Downgrading to a cheaper battery may result in inadequate power supply to key vehicle functions like the start-stop system or certain safety features.
Since batteries start decaying the moment they're manufactured, you want your new battery to be as fresh as possible. Look for the manufacture date, indicated by a sticker on the case. The date will typically be in month/year format, such as 08/21, meaning the battery was produced in August of . Try to buy a battery that is no more than six months old.
While there are plenty of battery brands out there, we recommend DieHard® batteries for your car, truck, or SUV. Their Stamped Grid Technology offers nearly 3X more corrosion resistance, greater durability, and 60% more electrical flow than standard flooded batteries.
DieHard® batteries are reliable even in the most extreme weather conditions and are built to meet the needs of today's power-hungry vehicles. They're America's most trusted auto battery for a reason!
No matter what kind of vehicle you drive, DieHard® batteries come equipped with everything you need in a high-performance battery. Get yours today at Firestone Complete Auto Care.
Contact us to discuss your requirements of How Long Do Golf Cart Batteries Last?. Our experienced sales team can help you identify the options that best suit your needs.