XS Power D4900 12V AGM High Output Battery – Group 49 / H8 AGM Power for Car Audio & Performance Vehicles

High Output AGM Power Built for Car Audio Systems, Trucks, SUVs & Luxury Vehicles

The XS Power D4900 is a premium Group 49 / H8 AGM high output battery engineered for high-performance car audio systems, aftermarket electronics, trucks, SUVs, luxury vehicles, and demanding electrical applications. Designed with massive reserve capacity, powerful cranking performance, and deep cycle durability, the D4900 delivers reliable voltage and exceptional current output under heavy electrical loads.

Whether you're powering amplifiers, subwoofers, lighting, or additional electronics, the D4900 provides the stable and dependable power your system needs to perform at its peak.

Why the XS Power D4900 Is One of the Best AGM Batteries for Car Audio

• Supports up to 3000 watts as a primary battery
• Handles up to 4000 watts as a secondary battery
• Massive 4000 max amps for high current delivery
• Strong 1100 CCA for reliable cold weather starts
• Huge reserve capacity for extended performance
• Sealed AGM construction for durability and safety

? If you're searching for the best Group 49 AGM battery for car audio systems, the XS Power D4900 is one of the top-performing options available.

Designed for High Output Car Audio Systems

The D4900 is engineered specifically for:

• High power subwoofer systems
• Amplifier setups up to 4000 watts
• Trucks and SUVs with aftermarket electronics
• Luxury vehicles with high electrical demand
• Daily drivers and competition builds

Its low internal resistance helps:

• Reduce voltage drop
• Improve amplifier efficiency
• Deliver harder hitting bass
• Maintain stable voltage under load

Perfect for systems ranging from 1500W to 4000W RMS.

XS Power D4900 Specifications

• Voltage: 12V
• Battery Type: AGM (Absorbent Glass Mat)
• BCI Group Size: Group 49 / H8 Replacement
• Max Amps: 4000A
• Cranking Amps (CA): 1250A
• Cold Cranking Amps (CCA): 1100A
• Amp Hours: 100Ah
• Reserve Capacity: 178 minutes
• Primary Application: Up to 3000W
• Secondary Application: Up to 4000W
• Polarity: R
• Included Hardware: M6 Hardware Included
• Weight: 63.8 lbs (28.94 kg)

Dimensions

• Length: 13.9 inches
• Width: 6.93 inches
• Height: 7.48 inches

Vehicle Compatibility

The XS Power D4900 is commonly used in:

• Land Rover vehicles
• Audi vehicles
• GMC vehicles
• Trucks and SUVs
• Domestic and European applications
• Group 49 / H8 battery replacements

And many additional high-demand electrical systems.

Advanced AGM Technology

The D4900 uses sealed AGM technology, making it:

• Spill-proof and maintenance-free
• Resistant to vibration and shock
• Reliable in harsh automotive environments
• Durable in hot and cold climates

Perfect for daily driving, towing, car audio systems, and demanding electrical applications.

Reliable Performance in Extreme Conditions

The XS Power D4900 is built to perform in:

• Extreme heat
• Cold weather conditions
• Heavy electrical demand situations

Its AGM construction helps provide:

• Longer battery life
• Stable power output
• Reliable starting performance

Why Choose XS Power Batteries?

XS Power batteries are trusted worldwide for:

• Stable voltage delivery
• Deep cycle durability
• High current capability
• Reliable performance in high-demand audio systems

Unlike standard automotive batteries, XS Power AGM batteries are designed specifically for aftermarket electrical systems and car audio applications.

Installation Recommendations

For best performance:

• Upgrade your Big 3 wiring
• Ensure adequate alternator support
• Use quality OFC wiring
• Properly fuse all power wire

Professional installation is recommended.

Upgrade Your Electrical System Today

If you need a powerful AGM battery capable of delivering stable voltage and dependable power for your car audio system or aftermarket electronics, the XS Power D4900 is built to perform.

Shop now: https://ampedupcaraudio.com

Frequently Asked Questions About the XS Power D4900

1. Is the XS Power D4900 good for car audio systems?

Yes. The XS Power D4900 is an excellent AGM battery for car audio systems and can support setups up to 4000 watts as a secondary battery.

2. What vehicles does the XS Power D4900 fit?

The D4900 is a Group 49 / H8 battery commonly used in many Land Rover, Audi, GMC, truck, SUV, and European vehicle applications.

3. Is the XS Power D4900 a deep cycle AGM battery?

Yes. The D4900 uses AGM deep cycle technology, allowing it to handle repeated charging and discharging cycles while maintaining stable voltage performance.

4. Do I need a high output alternator with the XS Power D4900?

For higher wattage audio systems, upgraded wiring and a high output alternator are strongly recommended to maximize performance and minimize voltage drop.

5. Can the XS Power D4900 be used as a primary battery?

Absolutely. The D4900 is designed to function as both a primary starting battery and a secondary battery for audio systems and aftermarket accessories.