Best Car Battery in 2021 – Review & Buyer’s Guide

Among the most annoying things, settling into your car after a long day at work to find that your car’s battery is dead is the worst one.

Knowledge holds great power when it comes to the life of your car battery. Your car’s battery is considered to be the heart and soul of your ride. The last thing an individual want to be left stranded with is a dead battery. The chances of getting a stuck decrease, if an individual knows complete details about the car’s battery along with its electrical system.

The average life of a battery is around 3 – 5 years; however, this lifespan significantly depends on an individual’s driving habits and exposure of battery to extreme elements that may shorten the life of the car battery. A quick diagnostic check is needed for estimating the temperature at which the battery is likely to fail, along with giving an idea regarding the left-over battery life.

This article tends to provide a review of the best car battery 2020 by giving you relevant information regarding each battery that would help you in making the right choice according to your needs.

Disclaimer – This article may contain affiliate links, this means that at no cost to you, we may receive a small commission for qualifying purchases.

The Best Car Battery of 2021

1. Optima 8004-003 RedTop – Best Car Battery Overall
2. Optima 8040-218 Yellow – Top Pick
3. ACDelco 94RAGM – Best Budget Car Battery
4. XS Power D3400 – Best for Car Audio
5. Odyssey PC925 – Small Battery
6. Optima 8002-002 – Heavy Duty
7. Exide Edge FP-AGM78 – AGM Battery
8. Odyssey PC680 – Budget Car Battery
9. Exide Edge FP-AGM24F – Cheap Battery
10. Bosch S6563B S6 – Small AGM Battery

1. ACDelco 94RAGM Car Battery

ACDelco 94RAGM possesses high cycling capabilities along with a remarkable charge-receptive option that is important for start/stop applications. The electrolyte present within the battery is permanently held in the glass mat separator that is 100 leak and spill-proof, rather than flowing free within different cells.

The battery is capable of reducing weight loss and reassure maintenance-free performance as a result of oxygen recombination. In traditional vehicle applications, these batteries experience longer life expectancy because of maintained pressure on the plates. Proper maintenance of pressure on the plate tends to reduce the total amount of active loss of mass from the grid. These batteries also offer a 36-month replacement period that is absolutely free of costs.

ACDelco 94RAGM Automotive car battery is very durable with extended battery life. The battery possesses high-density negative paste that increases the life of the battery along with its performance. The cycle life and performance of this battery have been improved as a result of enhancement in silver/calcium stamped alloy.

For replacement, ACDelco 94RAGM is considered to be an ideal choice as they meet/exceed all of the original equipment specifications, virtually. Moreover, these batteries are available in 16, 30, 36, and 42-month warranty period for free monthly replacement. These batteries have set the standard for performance as they are capable of resisting corrosion and are also backed by outstanding warranty coverage. ACDelco 94RAGM automotive car batteries should be your only choice when your priority of reliable starting point. This battery is such that all the needs are fulfilled virtually, no matter what the application is industrial, automotive, recreational, or marine along with heavy duty, professional, and voyager offerings.

ACDelco 94RAGM has a voltage of around 12 volts with a positive position of the right hand. The reserve capacity of this battery is around 140 minutes. The weight of the battery is 51.6 LBS / 23.4 kgs.; while, the dimensions are 12.4 x 6.9 x 7.5 inches. The warranty for this battery is 36 months.

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2. XS Power D3400 Car Battery

If you are in the market to buy a battery, whether it’s for upgrading your sound system or to simply replace your old battery, then this is it. It would be the best investment to purchase XS Power D3400 XS Series AGM Best Car Battery if you are struggling with poor battery. It is capable of turning the engine on through high output battery that is rated to be 3,300 amps. It is known as 12-Volt deep cycle sealed non-spillable lead acid Absorbed Glass MAT (AGM) battery power cell with 3300 Max Amps.

The battery has been designed for 12-volt and can be operated in the majority of the cars in the market. Moreover, the presence of AGM tends to offer minimal maintenance, low resistance, and increased output. This battery is also capable of resisting extreme heat and vibrations because it is sealed in a reinforced ABS plastic case.

The XS Power D3400 XS Series AGM car battery features AGM that is perfect for 2500-35000-watt car audio sound systems. This battery is significantly used for replacing your car’s standard battery or can be used as an additional battery providing extra power required for a high-performance aftermarket system. This is easily fit in almost all of the factory battery locations because of no external vents and its leak-proof design preventing any sort of hazardous leakages. Around 1000 cranking amps along with a maximum output of 3300 amps are put out by XS Power D3400 XS Series AGM car battery, which is considered as plenty of power required for cranking even the highest performing engines. In order to ease the procedure of installation for you, M6 terminal hardware has also been included in this battery.

NOTE: You should check out this battery if you need the power and ground terminals on the opposite sides. This battery possesses sealed absorbed glass mat (AGM) design and can be used as a replacement for your vehicles standard battery. These batteries are perfect for 2500W – 3500W car audio stereo systems. You can check XS Power D3400 XS Series AGM car battery here.

The XS Power D3400 XS Series AGM weights around 48 pounds and its package dimensions are 12.8 x 10.5 x 9.5 inches. Its item model number, manufacturer part number, and OEM part number are D3400. Whereas, this battery is capable to withstand around 12 volts.

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3. Optima 8040-218 Yellow Top Car Battery

Optima Batteries 8040-218 D35 Dual Purpose car batteries have long been a favourite of gearheads and adventures, who have accessorized their vehicles heavily. It is one of the few true dual-purpose automotive batteries available. This is a heavy-duty deep cycle battery with increased capacity to serve either for audio, camping or off-road. In extremely cold weather, this battery would provide 870 cranking amps, 750 cold-cranking amps, a 55 amp-hour capacity, along with two hours of reserve. The battery possesses 98 minutes of reserve capacity with constant performance and gives optimal starting power in bad weather conditions. More consistent power output and faster recharges are provided as a result of the decreased internal resistance of the battery.

This heavy-duty is also perfect for modern accessory-loaded vehicles with premium cranking power and impressive cycling capability. One of the distinguishing features of this battery is ‘decreased self-discharge rate’ that help the battery in maintaining its charge within the storage for long time periods without any need of battery charger support. Optima Batteries 8040-218 D35 Dual car battery has no risks of acid spills as it is structured with sealed-gel construction and patented SpiralCell Technology. Moreover, the battery can be mounted at any favourable angle and in any position. It also ensures mounting compatibility with the majority of the vehicles as a result of its compact design and dual cable post configuration.

Optima Batteries 8040-218 D35 Dual car battery is ideal for trucks that have high-demand electronics and audio systems. You may completely rely on this battery for providing deep-cycle power and ultimate starting. Moreover, it also functions well to be used for tractor battery, forklift battery, and other applications.

NOTE: Optima Batteries 8040-218 D35 Dual Purpose car battery is best for smaller boats and cars having limited space to mount larger batteries. The battery delivers 650 cold cranking amps that makes it powerful than a small-sized outboard motor. Moreover, it is among the best warranties of a battery across the entire market.

Optima Batteries 8040-218 with yellow top weights around 36.4 pounds with dimensions 9.4 x 6.8 x 7.7 inches. There are no folding and it requires a voltage of 12 Volts. The item model number of this battery is OPT8040-218. Whereas, the manufacturer part number and OEM part number of this battery is 904-0218 and 8040-218 respectively.

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4. Optima 8004-003 RedTop Car Battery

Optima battery RedTop has been specially designed for heavy-duty vehicles. They are specifically designed to bring a quick ignition of the engines. This is a competitive advantage for the RedTop battery that it allows immediate ignition of the engine. Usually, the ordinary batteries fail at this point and the engine is not able to start in the first go especially when the weather is cold. The battery can easily fit into bikes, trucks, vans and most of the cars. The battery is recommended to be used in the applications that are designed for car racing.

It has a great shelf life and can be used for high routes. Optima has manufactured almost more than a 100 million spiral cells since the 1990s and they are unique in this manufacturing. They claim that making spiral plates in more expensive and requires precision than just making the typical plates of an ordinary battery. It is their unique feature and it provides a high-quality battery in less budget. The battery is leak-proof providing safety and convenience to its users.

The red top battery provides a very reliable service and the manufacturers have tried to eliminate every reason that might cause battery failures the battery claims to have a longer life. It requires less maintenance but it very applicable on bumpy roads. The battery is competing for the market very well.

NOTE: It is very easy to handle and a durable battery. It is recommended for heavy vehicles as it allows a quick start to the engine. The deterioration cost is almost negligible. It is leakage- proof and is resistant to any wear n tear during the vibrations. It can be used in hot rods, bikes and SUV.

The Optima battery has penetrated the market as the most powerful battery that would an immediate ignition to the engine indifferent to the extreme weather conditions. The weight of the battery is 38.8 pounds while the dimensions are 10 x 6.9 x 7.8 inches. The model number is 8004-003. There is no folding and it requires a voltage of 12 Volts.

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5. Odyssey PC925 Auto LTV Car Battery

Batteries are a very vital part of any engine. The Odyssey battery offers the best service to its valued customers. It is designed in a way that would provide a longer life. It saves the time, money and the aggravation of the consumers by providing them with the best quality battery. The manufacturers claim to have invested this Odyssey battery with a number of Virgin Lead Plates that increase the surface area and as a result, provide more power than an ordinary battery.

This makes it stronger in power up to two times and the life gets longer by three times on 400 cycles and 80 depth of discharge. The autogas discharge vents are there and the AGM (Absorbed Glass Mat) technology helps to absorb the liquid causing no spill, regulating relief valve, tough flame-retardant cell containers. As compared to the Spiral technology, the Odyssey batteries pack 15percent more surface area of the led plates making it a better product. The packaging is done in a way that it absorbs the shocks and vibrations and the internal mechanism of the battery remains safe even when it is on a rough track. The robust internal cell connections are there to prevent vibration damage.

It is easily used for 4X4, trucks, SUVs, Off-Roads and other such applications. They provide a smooth engine ride with a shock absorbing power. It has a longer service life: With 3-10 years of service life, ODYSSEY batteries save consumers time, money, and aggravation.

NOTE: The Odyssey battery is one of its kinds it works about seventy times more efficiently than the conventional batteries in the market. The specific dimensions make it leak- proof throughout its life. It is resistant to shocks and ensures durability. It is recommended for a long-term use.

The battery has 3 to ten years of a lifespan. It is durable and stronger as compared to the conventional batteries. It has a cold crank Amp (CCA)- 330 having a warranty of 3 and 4-year full replacement. They have a 70 percent longer cycle life compared to conventional deep cycle batteries, up to 400 cycles at 80 percentage depth of discharge- high stable voltage for longer periods of time whereas, the recharge time is quite less. The amperage is 20A while the voltage is 12 Volts. It has a spill-free design.

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6. Optima 8002-002 34 RedTop Car Battery

The Optima Redtop battery has been specially created to withstand the extremely cold temperature. It gives a quick start to the engine making it hassle-free for its consumers. If you want to go on a long route then this battery will provide a very safe journey. It is reliable as it is a heavy –duty battery. The AGM technology has especially been installed so that there is no spill and does not cause self-damage. The battery is durable as it has a Spiral Cell Technology.

This is a particular technology that is only used by the Optima manufacturers. Since the 1990s they have created over 100 million spiral cells and is still used technology. It makes a battery strong and it can be used in any application. It can adjust to any virtual position. Starting from the trucks, SUV to bikes, the Optima battery can be used. Its installation is very easy and there is no extra maintenance of the battery.

It has a very strong resistance to battery failure. The Optima battery is one of a kind in start-up batteries. It is designed in such a way that it would send a bust of power immediately to the engine and it will start every time in the first go. The Optima battery is very well known in the market as a truck battery or an automotive battery.

The Optima 8002-002 34 RedTop Battery is 12-Volt, having an 800 Cold Cranking Amps. The size of the battery is 10″ x 6 7/8″ x 7 13/16″ in height while other dimensions are 10 x 6.9 x 7.8 inches. The total weight of the Optima battery is 37.9 pounds having an SAE Post. C20. The battery has a capacity of 50 Ah and the CCA is 800 Amp. It offers a reserve capacity of 100 minutes for constant performance and the optimal starting power even in bad weather. The case material is of Polypropylene.

NOTE: The Optima RedTop battery has been rated as one of the best sellers. The battery offers a warranty and can be replaced. This is well recommended for truck and heavy automobiles where the ignition requires more power.

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7. Exide Edge FP-AGM78 AGM Car Battery

Exide is considered as one of the best electronic company that cannot be beaten by any other competitor. It is not established only in the United States but is also well known throughout the world. Its best products are absolutely reliable and are legends in the battery line. When the Exide battery is connected to any vehicle it provides 770 CCA and 120 minutes of reserve capacity at 25 amps. It is very lightweight making only 8 ounces, but still, the AGM technology has been inculcated in it making it spill- proof even on a rocky terrain.

The Exide battery is one of its kind and till the present day has its monopoly. It is doing very well for many years. There are many types of batteries and are just perfect exactly matches the needs of the user. The latest technology has been used and it’s worth the price.

The Exide battery has the model number FP-AGM78, having a weight of 46.6 pounds. The dimensions are 10.2 x 7.1 x 7.1 inches while the model number is FP-AGM78 with no folding. The power is 770 CCA; 120 MIN RC at 25A with Non-spill able AGM construction having a greater capacity to better handle the heavy loads placed any other conventional battery. It outperforms conventional batteries across life test including heavy use stop and goes traffic with high electrical demands.

NOTE: Exide provides the best batteries throughout the world. It is a very trustworthy brand. It has outperformed all other batteries. The output is very good. It is one of the best-selling batteries. Although, a bit expensive than others and has brand loyal customers. Once the investment is made, the battery for last longest and would be a hassle-free once. It has passed many tests that prove its reliability.

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8. Odyssey PC680 Budget Car Battery

Odyssey Batteries are doing very well in the market. These batteries are specially designed so that the time, money and the hassle of the customer are saved. They have a wide range of models that meet the user’s requirements. They have a larger surface area of the lead plates and thus provide more power to the application. They have a strong ignition power and a deep cycle capacity. They can easily operate conditions. The battery is professionally sealed and because of this, it is maintenance free. The plastic casing is further covered with a steel casing so that it can resist extremely hot weather also. The same power battery is also available in a lighter packaging for those who stay in cold areas do not require such a heavy packaging.

The best part of the battery is this that it can be stored in the passenger area and will not leak or corrode; it will not even spread a pungent gas smell. It is the best competition for the Optima battery. It claims to provide a startup to the engine many times. It is resistant to vibrations and has the AGM construction. The difference between Optima and Odyssey is that the former has a Spiral Cell battery while this one claims to have a better surface area of the virgin lead that makes it more powerful and recyclable.

The Odyssey Battery has a power of 170 CCA; Better warranty: Limited 2-year full replacement warranty having a service span of 3 to 10 years according to the usage. As compared to other heavy vehicles like 4X4, Odyssey battery serves 70 percent longer life cycle up to 400 cycles at 80 percentage depth of discharge- high stable voltage for longer periods of time. It is resistant to the vibrations and can easily withstand mechanical wear and tear and is not corroded. It can withstand both extremely high and low temperature.

The special design is made in which the extremely hot weather can also be tolerated by the product. The Odyssey battery having a model number PC680 has a weight of 15.4 pounds. The package dimensions are 7.7 x 7.7 x 3.9 inches, while the model number is PC680 having the batteries1 Nonstandard Battery batteries required. (included). It has an Amperage of 18 A with Voltage of 12 volts with no folding in it.

NOTE: The Odyssey batteries have entered the market and are doing very well. They provide a competition to the Optima battery. They have a competitive edge of the larger lead surface area which means that they last longer as compared to the Optima battery. These batteries are used in many applications starting from sports to the cars. It is also recommendable as they claim to be absolutely maintained free. You can check out the Odyssey PC680 Cheap Car Batteries here.

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9. Exide Edge FP-AGM24F Budget Car Battery

Exide is considered as one of the best companies for batteries. There is a range of batteries available. They use the AGM support for their batteries. As it is already mentioned, the Exide Batteries are the best in town. Also, no other battery can replace its performance. The Exide Batteries use the most expensive material so that their product can stand out of the crowd.

This brings the cost very high and not everyone can afford it. So, in order to cater to every consumer a comparatively inexpensive battery is also there is the market under the name of Exide, Edge FP-AGM24F Flat Plate AGM Sealed – Cheap Car Batteries. The Exide Edge batteries are the ones which have the SureLife Graphite Technology.

This technology is very useful in increasing the available energy capacity to help the battery perform for a longer span of time. With Exide Edge, you get The AGM technology. Also, there is a protection against battery failure to help vehicles stay strong and perform for a longer period of time and the consumer does not have to worry about the replacement for a long time. They are lighter in weight and can easily adjust in a car. They support long route and an uneven terrain.

The climate does not affect the performance of the battery. It is properly sealed. It is also made leakage – proof. It can resist the jerks and hence avoid the wear and tear. It is not only used in cars, there is much other application where the battery is much needed. The Exide battery does well in all those applications. Especially in such applications where one has to start and stop it, again and again, the battery does not get overstressed and self-discharge. The charging time is also very less.

One of the best batteries is made under the name of Exide. It is a best seller and is usually out of stock. It has a power of 710 CCA; 120 MIN RC at 25A. The Absorbed Glass Mat (AGM) is also incorporated so that there is no leakage even when the life of the battery is over. The Model number is FP-AGM24F while the weight of the whole package is 46.2 pounds having the dimensions of 10.2 x 6.8 x 8.7 inches. The Item model number is FP-AGM24F

NOTE: The Exide battery is a very well reputed battery. If you need a good mileage without any worries, then it is recommended to spend a bit more and buy an Exide Battery. It has passed all the quality tests and it is worth the price. This is the best recommendation for heavy vehicles and the stop and starts applications. It has performed extraordinarily well in every test. For more information regarding the product check this out.

The battery is very powerful and can take up a load that the normal batteries do not. Those batteries usually fail most of the tests that the Exide has successfully passed. It has outperformed other batteries in the test that included heavy vehicles, continuous on and off of an engine, and the electrical demands. It also passed the toughest test which checks the stress of the automobiles.

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10. Bosch S6563B S6 AGM Car Battery

Bosch is a very well reputed company. It has a high customer base and has penetrated the market well. The Bosch car batteries are excellent in performance and are one of the high rated cheap car batteries. They provide a high quality at a lower price and not only that they have a 4-year warranty in which the car batteries can be replaced. They have earned a good name and are doing well. It will last twice as long as any other battery because of the Energy Life technology. The Bosch batteries are doing great in the present times.

The greatest concerns of the customers are that it should stat the application at once and then keep supplying a continuous power for a smooth running. The Bosch batteries are just perfect as they have an Energy Life technology along with the AGM and make it a good choice for the consumers. The battery can handle both hot and cold climates. It is spill proof. It does not require any maintenance. The battery is specifically designed for the low budget consumers but the services offered are the same as any other battery, in fact, better than the conventional batteries.

These batteries can be used in any application starting from a car that is used on daily basis to some heavy-duty vehicles. The battery is very cost effective but the efficiency is very good it can be a great competition for the other batteries. The battery is specially created to provide a hassle-free experience to the clients. It has penetrated the market because of its cost-effective strategy.

The Bosch battery is backed by Bosch Roadside Assistance program provided via Auto Road Services. It offers the power of 770 CCA, BCI Group: 78 like any other powerful battery. It offers a two times longer lifespan than conventional batteries due to Energy Life technology. Its packaging makes it maintenance free and spills free because of AGM technology. There is a 4-year warranty included in the battery pack. The total weight of the package is 47.3 pounds having a dimension 11.8 x 11.6 x 9.7 inches. The Item model number is S6563Band the Manufacturer Part Number is S6563B. it is designed to keep the convenience of the consumers in mind.

NOTE: It is one of the best seller battery among all the other brands. It provides all the services to its valued consumers in a lower cost so people prefer buying this battery. There are many positive reviews and buying a Bosch battery will also be a good idea if you are not willing to spend much on the batteries. It is efficient in constant stat stop applications and the day to day use applications too. It is environmentally friendly and safe to use.

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Car Battery Information

In cars, the jolt of electricity required to power all the electrical components is provided by the battery. It holds great importance and responsibility as it has been noticed clearly that car won’t start with proper battery power. Let us have a look on the power hold by this little box. For instance, your car is put into action as a result of a chemical reaction. Power is provided to the car as the battery converts chemical energy into the electrical energy resulting in deliverance if the voltage to the starter. The electric current needs to be set steady. The battery functions to keep your engine running by providing sufficient energy to start your car and stabilize the voltage.

As I look at the car’s battery, it resembles a small box, but it tends to provide huge power that can be tested with the Virtual Battery Tester. The battery may need replacement concerning various indications and symptoms. For instance, if you observe that cranking of the engine becomes sluggish and takes more time to start, as compared to the normal time taken while starting a vehicle, then it is obvious that your battery require replacement. The weak battery power is indicated through the appearance of engine light. Any problem with the battery is indicated through the strange system indicator lights and it may even indicate that the battery needs more coolant.

The fluid level of the battery can be viewed easily as these car batteries have a part of the casting that is translucent. Majority of the modern cars have started to completely seal the red and black battery caps; however, if open the battery fluid level can be checked by removing the red and black caps. There is a dire need to test the battery and charging system tested if the fluid level reaches below the lead plates depicting the energy conductor inside. The swelling or bloating of the battery as in looking like that the battery has eaten a large meal indicates that the battery has gone bad. The battery case is likely to swell up due to being exposed to excessive heat that decreases battery life.

How can you determine that the battery of your car has become too old?

The first thing here is that you need to check the 4 or 5-digit code present on the cover of your battery. You need to look for the letter and the digit as the first part of the code is the key. The letters are assigned for different months; for instance, A indicating January, B for February, and so on. Similarly, the number followed by letters (indicating months) nods to the year like; 8 is for 2008 and 12 foe 2012. So, it is clear that this code tells you about the exact date when your car’s battery was shipped to the local Interstate Battery wholesale distributor from the factory. The place of battery manufacturing is depicted through the additional digits.

The smart car battery charges being used recently tend to provide batteries with the required charging and it can be connected whenever and wherever it is required. You need not to worry regarding the damage that can be caused for charging too long or overcharging as these charges have an inbuilt monitoring system. This monitoring system functions to shut of the charging, when the car’s battery is fully charged.

How to charge a car battery?

Watch this video to learn how to charge your car battery the proper way

Buyer’s Guide

The life is so fast that every other person has a car or other machinery that requires a car battery. The batteries are not everlasting and they need to be replaced once in a few years. Before choosing a battery, you must be very clear that what exactly you are looking for. This is a one in a many years investment and you depend on your battery a lot; because if a car is not cranking on the right time, you can get late or at times it can be embarrassing as well.

You should know that which automobile is there, which terrain you follow, what climatic conditions are there. There are batteries ranging from every price range to the utility range. It is recommended to use the one that fits your requirement well. Using a Bosch battery on your daily use is recommendable as it is cost effective but if you want to go for a hassle-free long run battery then I would recommend an Exide battery but it is the most expensive one. Again, if there is some generator or some other application that requires a constant start and a stop, then Odyssey will be the right choice.

All the batteries mentioned here are really good to use and have their own specifications. It depends on the user that how much he uses them, where he uses them and what specifications meet his requirements. These all are available on Amazon with free delivery charges. The links have been provided. The warranty has also been mentioned so that we can make your shopping the best experience and you move out as satisfied customers. Happy Shopping.

NOTE: REMEMBER TO CHOOSE A BATTERY THAT FIT YOUR CAR BEFORE PURCHASE! CHECK IT CAREFULLY!