10 Best Second Batteries for Car Audio [2025]
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Finding the best second batteries for car audio is crucial for enhancing your sound system’s performance. These batteries provide the extra power needed for high-quality audio without straining your vehicle’s main battery. In this article, we will explore the top 10 second batteries available in the market, helping you make an informed choice for your car audio setup.
Top 10 Second Batteries for Car Audio in the Market
Best Second Batteries for Car Audio Review
SaleBestseller No. 1
XS Power XP750 750 Amp AGM Secondary Battery with M6 Terminal Hardware - 12 Volt...
- ππππππππ πππ πππππ ππππππ: This 12V Absorbent Glass Mat(AGM) battery offers a leak-proof, maintenance-free design with exceptional durability and reliability, making it perfect for powering heavy-duty accessories like light bars, winches, power inverters, and car audio systems.
- ππππ ππππππππ ππππ ππππ: The maximum output of 750 amps means the XP750 can handle high power demands, making it suitable for powering aftermarket accessories like light bars, power inverters, and winches. With 750 cranking amps (CA), this small agm battery can start your ATV, Van, SUV, Truck, Personal Watercraft.
- πππππππ πππ πππ π ππππππ: This 12V secondary battery features a sealed, leak-proof design for long-lasting, maintenance-free performance. The included M6 terminal hardware ensures easy installation, perfect for a variety of powersports applications.
- ππππ-πππ πππππ ππππππ ππππππππ: This 12V AGM deep cycle battery offers 750 max amps, 750 CA, 22 amp-hours (AH) capacity, and 28 minutes of reserve power. It operates seamlessly Secondary 750 W Range and its compact size (7.13" L x 6.57" H x 3.03" W) and lightweight design (14.5 lbs) ensure versatility. Backed by a 2-year warranty.
- πππππππ ππππ:: Weighing just 14.5 lbs, this XS Power AGM deep cycle battery is made for easy transport and installation. Its compact size makes it an ideal choice for powering accessories like light bars, power inverters, and car audio systems without the weight of bulky batteries.
Bestseller No. 2
Mighty Max Battery Viper by Mighty Max Battery VP-600-12 Volt 18 AH, 600 Watt...
- Reinforcement For Amplifiers or As Your Starting Battery Where Weight Is A Concern
- Viper VP-600 12V 18Ah 600 Watt AGM Car Audio Battery
- Sealed Non-Spillable Design Can Be Mounted In Any Position Without The Worry of Leaks and Spills
- Withstand Higher Temperature and Vibrations Than The Leading Brand Name Batteries.
- AGM Technology For Better Power Efficiency, Longer Life and Maximum Sound Performance!
Bestseller No. 3
Skar Audio 12V AGM 300 Amp 20Ah High Performance Car Audio Battery with...
- Maximum Output: 300 amps | Cranking amps: 326 amps
- Max Discharge: 20 Ah (amp hours) | Reserve Capacity: 25 minutes
- Weight: 13.6 lbs | Dimensions: 7.125". x 3.00" x 6.625"
- 1 Hour Rate: 11A / 11.45Ah | 5 Hour Rate: 3.6A / 18.6Ah
- 20 Hour Rate: 1.0A / 21Ah | 1/2 Hour Rate: 20A / 10.16Ah
Bestseller No. 4
XS Power D3400 3300 Amp AGM Battery with M6 Terminal Hardware - 12 Volt 80Ah...
- ππππππππ ππππππππππ ππππ πππ ππππππππππ: The 12V XS Power AGM battery features sealed, maintenance-free AGM tech, offering leak resistance and long lifespan. Perfect for powering Japanese and European vehicles, including Jeep, Chrysler, Bentley, Nissan and more high-energy accessories like audio systems or other electronics in all weather conditions.
- ππππππππππ ππππππ ππππ πππ πππππππ: This 12V Deep Cycle Small AGM battery offers 1150 cranking amps (CA) and 1012 cold cranking amps (CCA) for reliable engine starts in extreme weather. It powers car audio systems, electronics, and high-demand devices, keeping your ride smooth in all temperatures.
- πππππππ πππ πππ π ππππππ: This 12V powersports battery features a sealed, leak-proof AGM design, is maintenance-free, and includes M6 terminal hardware for easy installation. Perfect for custom setups, with a 3-year warranty for long-lasting performance.
- πππππ πππππ π ππ ππππ-ππππππ πππ: This 12V AGM deep cycle battery(Group 34) offers 3300 max amps, 80 amp-hours (AH) capacity, and 160 minutes of reserve power. It operates seamlessly Secondary 2500W/4,000W Range and its compact size (10.24" L x 7.16" H x 6.89" W) and lightweight design (49.97 lbs) ensure versatility. Backed by a 3-year warranty.
- ππππππ ππ, πππππ-ππππππ πππππππ: Weighing only 49.97 lbs, the XS Power D3400 is designed for effortless portability and installation. Its compact size makes it perfect for powering aftermarket accessories like car audio systems, power inverters, or LED lights, providing high power without the bulk of traditional batteries.
Bestseller No. 5
XS Power D680 1000 Amp AGM Battery with M6 Terminal Hardware - 12 Volt 20Ah...
- πππππ πππ πππππ ππππππππππ: The 12V XS Power AGM battery features sealed, maintenance-free AGM tech, offering leak resistance and long lifespan. Perfect for powering high-energy accessories like 1000-watt audio systems, LED lights, or power inverters in all weather conditions.
- ππππππππ ππππ πππππππ ππππ ππππππππ πππππ: This 12V Deep Cycle Small AGM battery offers 370 cranking amps (CA) and 326 cold cranking amps (CCA) for reliable engine starts in extreme weather. It powers car audio systems, electronics, and high-demand devices, keeping your ride smooth in all temperatures.
- ππππππ ππππππππππππ: This 12V powersports battery features a sealed, leak-proof AGM design, is maintenance-free, and includes M6 terminal hardware for easy installation. Perfect for custom setups, with a 3-year warranty for long-lasting performance.
- ππππ-ππ π πππππππ ππππππ ππππππππ: This 12V AGM deep cycle battery offers 1000 max amps, 20 amp-hours (AH) capacity, and 24 minutes of reserve power. It operates seamlessly Secondary 1000 W Range and its compact size (7.13" L x 6.57" H x 3.03" W) and lightweight design (11.24 lbs) ensure versatility. Backed by a 3-year warranty.
- πππππππ ππππ: Weighing only 13.69 lbs, the XS Power D680 is designed for effortless portability and installation. Its compact size makes it perfect for powering aftermarket accessories like car audio systems, power inverters, or LED lights, providing high power without the bulk of traditional batteries.
Bestseller No. 6
XS Power XP3000 3000 Amp AGM Secondary Battery with M6 Terminal Hardware - 12...
- πππ ππππππππππ π ππ πππππππ πππππ: This 12V Absorbent Glass Mat(AGM) battery offers a leak-proof, maintenance-free design with exceptional durability and reliability, making it perfect for powering heavy-duty accessories like light bars, winches, power inverters, and car audio systems.
- ππ π πππππππ πππππ ππππππππ: The maximum output of 3000 amps means the XP3000 can handle high power demands, making it suitable for powering aftermarket accessories like light bars, power inverters, and winches. With 3000 Secondary Watts, this small agm battery can start your ATV, Van, SUV, Truck, Personal Watercraft.
- ππππππ ππππππππππππ: This 12V secondary battery features a sealed, leak-proof design for long-lasting, maintenance-free performance. The included M6 terminal hardware ensures easy installation, perfect for a variety of powersports applications.
- ππππππππ πππππ ππππ πππππππππ: This 12V AGM deep cycle battery(Group 31) offers 3000 max amps, 120 amp-hours (AH) capacity, and 240 minutes of reserve power. It operates seamlessly Secondary 3000 W Range and its compact size (13.35" L x 8.50" H x 6.75" W) and lightweight design (73 lbs) ensure versatility. Backed by a 2-year warranty.
- πππππππ & ππππππ ππ πππππ πππ πππππππ: Weighing just 73 lbs, this XS Power AGM deep cycle battery is made for easy transport and installation. Its compact size makes it an ideal choice for powering accessories like light bars, power inverters, and car audio systems without the weight of bulky batteries.
Bestseller No. 7
DS18 INF-18 18 AH 750 Watt AGM Power Cell 12 Volt Battery - Maintenance Free -...
- AGM (Absorbed Glass Mat) - The most cost effective way to meet high charging demands from any 12v sources. Extreme amperage draws and hold strong voltage through the most demanding of times
- NON SPILL DESIGN - The batteries can be mounted upside down or in multiple configurations without worry. This 18 AH Battery is great for all applications
- HIGHEST CONNECTIVITY - Bolt M5 terminals for secure connection also giving multiple options for add on terminals and busbars for the highest connectivity and conduction
- HIGH BURST RESERVE - The battery can maintain high volumes of amperage draw while efficiently holding voltage. This can be used as a car battery, motorcycle battery, ATV battery and so much more
- HIGH FLOAT CHARGE - This AGM car battery has a high float charge so your lights stay brighter, your electronics run stronger, and you have more reserve power and voltage altogether
Bestseller No. 8
Audiosavings Bundle: XS Power XP750-SE 750w Power Cell Car Audio Battery Bundle...
- PACKAGE INCLUDES: (1) XS Power XP750-SE 750w Power Cell Car Audio Battery Power Stereo System, (1) Rockville RPAK Charcoal Stylish Durable Backpack Bag w/ Padded Laptop Pocket
- 750W SECONDARY POWER SUPPLY: Designed to supplement your factory battery or audio system, the XP750-SE delivers 750 amps of instant power using high-performance AGM technology in a compact, sealed housing.
- BUILT FOR AUDIO AND ACCESSORIES: Ideal for powering aftermarket electronics like audio amplifiers, light bars, winches, and more. Spill-proof, maintenance-free design ensures reliable operation in all driving conditions.
- COMPACT AND LIGHTWEIGHT DESIGN: Measuring just 7.13" x 6.57" x 3.03" and weighing 14.5 lbs, this battery fits easily into tight spaces while still offering 22Ah capacity and 28 minutes of reserve power.
- MULTI-FUNCTION BACKPACK INCLUDED: Rockville RPAK features a large zippered main compartment, padded laptop section, side drink holders, and hidden zip pocket-perfect for tools, laptops, or daily essentials.
Bestseller No. 9
Mighty Max Battery MM-AUX14 Auxiliary Battery 12V 14Ah, 22RC, 200 CCA...
- Reliable Backup Power: This 12V 14Ah AGM battery delivers dependable performance in any weather and supports critical systems when the engine is off.
- Made to Last: With its 22-minute Reserve Capacity supports longer run times and a longer overall battery lifespan.
- All Power, No Mess AGM Design: Sealed and spill-proof, the MM-AUX14 is built with high discharge output and deep discharge recovery to keep power steady when it counts.
- Strength That Starts on the Inside: The rugged construction resists shock, vibration, and harsh conditions, delivering reliable performance across a wide range of temperatures and tough environments.
- Tested Tough & Certified Safe: Mighty Max batteries are built in an ISO-certified facility and meet CE standards for quality, safety, and reliability.
SaleBestseller No. 10
500 Amp Battery Isolator for Mobile Audio Relay Continuous Battery Isolator...
- 500 AMP BATTERY ISOLATOR - Perfect for any application with multiple batteries that need to be isolated including Marine, Mobile Audio, Off-Road, Power Sports, etc. | battery disconnect relay is used to isolate the second battery which powers audio, visual navigation, or other equipment.
- POWERFUL FUNCTION - 12v battery isolator can continuously power handling 500 amps at 12V and handling of 700 amps at surge power | Doesn't create a voltage drop to your second battery unlike common isolators do. battery isolator 500 amp with a maximum current transfer, power on demand.
- ELIMINATES BATTERY DRAIN - Normally, when two car batteries are connected in parallel, they are easy to charge and discharge each other | The relay battery isolator stops the battery bank from getting power from each one, eliminating that negative effect | Reducing the natural consumption of batteries after power off, lengthens the life of the primary battery.
- FEATURE- Battery isolator solenoid is made of high-quality materials, excellent performance, and durability. Easy to install and start up immediately.
Quick Recap
In summary, selecting the best second batteries for car audio can significantly improve your listening experience. With the right battery, you can ensure consistent power delivery and avoid issues like dimming lights or audio distortion. Consider the options discussed to find the perfect match for your audio needs.
