Best Battery for Car Audio System in 2021

The car stereo system is an essential accessory in any car. However, it demands a constant power surge, and this is where a second battery for the car audio system comes into play. This extra car battery is dedicated exclusively to the stereo system. Like a normal car battery, the stereo battery should be in keeping with modern technology and packed with essential features.

Adding an extra battery for your car audio will ensure your car’s sound system is poised to hit those numbers, regardless of whether it’s a short or long car adventure.

Top 5 Best Battery for Car Audio System

Image Product Details   Price
61q6waDSsL._AC_SL1000_ 100 Ah LiFePO4 It takes little time to recharge; roughly about 3 hours.
It can withstands very high charge rates .i.e. 100A.
This battery does not freeze even in extreme temperatures.
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61lTc0F9PZL._AC_SL1200_ Odyssey PC680 Odyssey PC680 is resistant to mechanical vibrations and is not affected by extreme temperatures.
It has a longer cycle life as compared with other deep cycle batteries; usually 70% more.
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91L31P42uvL._AC_SL1500_ ACDelco ACDB24R ACDelco ACDB24R is resistant to leaks and spills.
It is maintenance free due to its sealed nature.
It has up to 3 times the cycle life of many traditional units.
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81aF2MQQZL._AC_SL1500_ Optima Batteries 8025-160 The battery has optimal starting power irrespective of temperatures.
It does not require any maintenance.
It can be mounted in multiple positions as it is spillproof.
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71Gn2kO0zUL._AC_SL1500_ ExpertPower EXP1290-2 It has incorporated a technology that allows for very slow self-discharging.
It uses the AGT allowing it to operate over a wide range of temperatures.
ExpertPower EXP1290-2 is maintenance-free as it is valve-regulated.
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1. 100 Ah LiFePO4

From the house of LifePo4, we introduce you to this high-performance car audio battery, which is one of the most versatile and reliable batteries available on the market today. It’s a high-amp starting battery packed with extraordinary features. Its maintenance-free operation translates into many years of service, making it a must-have car battery for your sound system.

100 Ah LiFePO4 Key Highlights and Benefits

Cutting Edge Specs: At a whopping 1000cc, this 12-volt, 100-hour battery does not require any hardware to work with your sound system. All you need to do is place it on the battery tray, and so you have a separate battery for the car audio. It’s also a low-profile car battery, which means it doesn’t take up much space.

Battery Management System (BMS): The power control board (PCB) has a built-in battery management system, which is the heart of this battery. This system offers protection against short circuits, reverse polarity, Under voltage and overvoltage, and balancing the load and voltage of the individual cells. The BMS also allows you to connect multiple 100 Ah LifePO4 batteries in parallel with each other without the need for external protection.

Circuit Boards: Circuit boards are lined up across the cells to help control pressure, current, and temperature. If, for example, if there is a case of high internal pressure, the plates will respond with an automatic voltage cutoff that will cut off the positive and negative current. These circuit boards also help prevent any damage to the battery due to the shorted cell.

Solid Construction: The 100Ah comes with an ABS housing with the terminals of each cell soldered to a plate to provide a solid ground for electrical and physical connection. In addition to this, each cell has three layers for safety protection, which helps extend this audio battery’s life. The recommended cold-cranking amps for this unit are 1000, making it suitable during winter.

Pros
  • It takes little time to recharge; roughly about 3 hours
  • It can withstands very high charge rates .i.e. 100A
  • This battery does not freeze even in extreme temperatures.
  • It does not need to be fully charged for storage rather it can be stored at any state of charge(SOC)
  • It is lightweight and its weight is almost half of its lead-acid counterparts.
Cons
  • It is not the cheapest option.
  • Not suitable to be used as a cranking battery.

2. Odyssey PC680

Odyssey PC680 is specially built in rugged construction to help it resist the forces of nature that you may encounter while on the road. It offers fantastic features and is also one of the most affordable batteries on the market today, making it a perfect choice in cases where the battery dies without warning.

Odyssey PC680 Key Highlights and Benefits

Faster Recharge and Remarkable Mounting Flexibility: With one of the best recharging efficiencies on the market, Odyssey PC680 can reach the 100% charge mark in just 4-6 hours. Installation of this second unit is quite easy, as it comes in a non-spill design, making it easy to mount in any position without worrying about spills.

Vibration and Temperature Tolerance: Odyssey PC680 has incorporated a design that is resistant to vibrations and high impact shocks that the car can be subjected to while on the road. This car audio battery is also best known for its high tolerance to extreme temperatures. Any temperature variation has little or no effect if any.

The Absorbed Glass Mat (AGM) and Valve Regulated Lead Acid (VRLA)

Technologies: Combining these two technologies makes the PC680 function as a dual battery car audio system, one with tremendous starting power and deep cycle power reserve. Unlike traditional units, this battery can support both applications, which can only help one of the applications. The thin and densely packed add-on plates make this battery deliver twice the power of conventional batteries.

Longer Cycle Life: Odyssey PC680 has approximately 70% longer life compared to traditional drives. It has 400 cycles at 80% battery discharge level and has a high and stable voltage for a long period. This makes the Odyssey PC680 the ultimate backup battery for car subwoofers and amplifiers.

Pros
  • Odyssey PC680 is resistant to mechanical vibrations and is not affected by extreme temperatures.
  • It has a longer cycle life as compared with other deep cycle batteries; usually 70% more.
  • Fast and quick recharge as it takes about four to six for it to be fully charged.
  • It is completely sealed meaning no spillage which allows for flexibility during mounting.
  • It has an average of 400 cycles at 80% depth discharge which leads to high voltage for extended period of time.
Cons
  • With only 170 cold cranking amps, it is not appropriate in extremely cold temperatures.
  • PC680 does not come with terminals.

3. ACDelco ACDB24R

ACDelco ACDB24R is a maintenance-free car audio battery that is spillproof and also comes with AGM technology. This design lets you work without worrying about the common battery acid leakage problem. Additionally, the included valve-regulated technology ensures that this battery will give you three times the normal shower life cycle.

ACDelco ACDB24R Key Highlights and Benefits

Absorbed Glass Mat (AGM) Technology: AGM technology ensures no spills or leaks from this stereo battery. Furthermore, it leaves no room for any maintenance as it completely seals the battery. In addition to this, it increases the amount of power this battery produces, making it one of the most powerful car audio batteries on the market.

Recombinant Valve-Regulated Gas Technology: ACDelco ACDB24R makes use of recombinant valve-regulated gas technology to increase its performance. This technology helps prevent gas leaks for safety reasons and also ensures a long service life. It can last three times longer than traditional units. However, it is susceptible to mechanical vibrations.

Calcium Plates (Positive and Negative): – This battery comes with calcium plates, both positive and negative. These plates help reduce the discharge rate when the battery is not in use. Also, it has electrical networks that help increase the starting power amplifiers during the same period. Additionally, the high-density oxide plates help increase the number of watts produced by this audio drum kit.

Silver Calcium Alloy: In addition to calcium plates, this car amplifier battery has additional calcium silver alloy. This alloy acts as a cathode to optimize conductivity and performance. Furthermore, the fusion of these two metals helps to strengthen the battery with low internal resistance and increases the audio power.

Pros
  • ACDelco ACDB24R is resistant to leaks and spills.
  • It is maintenance free due to its sealed nature.
  • It has up to 3 times the cycle life of many traditional units.
  • The battery can be stored off season thanks to its frame grids and calcium plates.
  • Its high-density oxide plate provides outstanding levels of powe
Cons
  • The battery is prone to mechanical vibrations.
  • It has very small and non-standard terminals.

4. Optima Batteries 8025-160

Optima’s reliable 8025-160 is designed to bring robust power to your car audio every time your sound system runs. It is also designed to withstand extreme launches and extreme weather conditions. Plus, it features popular technologies that make it resistant to common causes of battery failure, making the Optima battery the best.

Optima Batteries 8025-160 Key Highlights and Benefits

Spiral Cell Technology: This battery adopts spiral cell technology instead of AGM technology, which is composed of 99.99% pure lead plates coated with lead oxide. This design makes the 8025-160 more tolerant of temperatures and automated processes to keep up with the required performance and quality.

Works Well in Extreme Conditions:- The 8025-160 is known to perform efficiently even in extreme conditions where it delivers sufficient starting currents. This battery is not damaged even when the charge drops deeply or when stored for long periods. It is also unaffected by occasional mechanical vibrations.

Sufficient Cold Cranking Amps: With up to 720 cold-cranking amps, the 8025-160 is one of the most robust car audio batteries offering fast start-up in any weather. It is also very consistent at every start, making it the right battery for your car. It does not require any maintenance as it is completely sealed, so a new battery is needed in case of any damage.

Faster Recharge: Like other Optima batteries, the 8025-160 has a fast recharge, precisely what you need for your car audio system. It also has a slow download speed and does not get damaged when the load is low. When it comes to installation, you have multiple mounting orientations, thanks to the spill-proof design.

Pros
  • The battery has optimal starting power irrespective of temperatures.
  • It does not require any maintenance.
  • It can be mounted in multiple positions as it is spillproof.
  • Improved resistance to vibrations; about 15 times that of traditional units.
  • High recharging rate.
Cons
  • In some cases, it may have a reduced lifespan.
  • It is slightly specialized and may not be compatible with some audio systems.

5. ExpertPower EXP1290-2

This rechargeable EXP1290-2 from Expert Power has made a name for itself in the lead-acid battery market as one of the most preferred car audio batteries. Packed with easy-to-use features to give you peace of mind, and its high durability makes it stand out from its close competitors as one of the most powerful car audio batteries.

Expert Power EXP1290-2 Key Highlights and Benefits

Essential Equipment Compatibility: ExpertPower EXP1290-2 is fully compatible with most APC backups, giving you stress-free operation, especially when you must connect the battery to such applications. It also has a slow download speed that keeps your car swaying during long road trips. However, it takes more time to fully recharge.

AGM Technology: This technology works to make sure maximum absorption of the acid by the plates. Also, it prevents any spills, and at an equivalent time, it allows the battery to work over a good range of temperatures. This helps to prolong its life cycle. It’s also valve regulated, meaning it requires on the brink of nil maintenance as you do not need to check the water level.

Rugged Design for Durability: The sturdy design makes it perfect for rough situations and unfavorable weather conditions, ensuring durability. The battery is also relatively light, which provides ease of installation. This is simplified further by its user-friendly nature, as it will only take a few minutes to get your system up and running.

Pros
  • It has incorporated a technology that allows for very slow self-discharging.
  • It uses the AGT allowing it to operate over a wide range of temperatures.
  • ExpertPower EXP1290-2 is maintenance-free as it is valve-regulated.
  • The battery is durable, and its design allows easy setup.
  • It is highly resistant to heat as it is enclosed in a non-conductive ABS plastic
Cons
  • It tends to deteriorate when stored for long
  • The battery needs time more to be fully charged as compared with other batteries in our review.

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