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American Bass Stealth 550 (ST-550)

12V 55Ah Absorbent Glass Mat (AGM) Car Battery

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• Sealed Absorbent Glass Mat (AGM) design
• Perfect for up to 1500-watt car audio stereo systems
• Compatible with high-powered car applications
• ABS container material with T6 terminal type

Learn more about the st550
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List price $302.28
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-27%

$220.34

 with warranty
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Description


American Bass brand icon

Authorized dealer

Stealth Absorbed Glass Mat Battery

The American Bass Stealth AGM Battery line represents a foundational leap forward in reliable, high-output car audio power storage, specifically engineered to support the demanding energy spikes of multi-amplifier builds and high-powered subwoofer systems. Unlike standard starting batteries, this heavy-duty platform utilizes advanced Absorbed Glass Mat (AGM) technology, which suspends electrolyte fluid in specialized glass mat separators. This fully sealed, maintenance-free design allows for flexible installation layouts in tight spaces or cargo areas while ensuring maximum spill proof safety and exceptional resistance to the intense vibration common in high-SPL vehicles.

Engineered to prevent devastating voltage drops and amplifier clipping during intense bass transients, the Stealth AGM platform features an ultra-low internal resistance profile that facilitates remarkably fast energy delivery and rapid charging recovery. The rugged cells are tightly packed within a heavy-duty, impact-resistant ABS container, optimizing physical compression to extend the battery's deep-cycle lifespan and ensure structural integrity under severe thermal conditions. Capable of dropping substantial burst current on demand, this premium power solution acts as a rock-solid electrical anchor to keep multi-speaker setups performing at full musical potential without dimming headlights or sacrificing dynamic headroom.

RETURNS & SUPPORT Click to view

Battery Return Policy: Due to shipping safety regulations and hazardous material handling requirements, automotive batteries cannot be accepted for standard returns or refunds once purchased.

Warranty Assistance: If your battery is defective or experiences an early failure, we want to make sure you get taken care of! These claims are handled directly through the manufacturer’s formal warranty process. We can help connect you with the manufacturer so they can guide you through their quick evaluation and replacement steps.

Sonic Electronix Policy: To keep our team and transit systems safe, Sonic Electronix is unable to accept battery returns or exchanges at our warehouse unless required by law. Please reach out to us before sending any items back so we can guide you to the right solution and avoid any extra shipping costs for you.

Battery Features:

  • 12-volt AGM Car Battery
  • Compatible with high-powered car applications
  • Perfect for up to 1500-watt car audio stereo systems
  • Sealed Absorbent Glass Mat design
  • ABS container material with T6 terminal type
  • Dimensions: 9.02"L x 5.43"W x 8.31"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Battery Specifications:

  • Battery Type: Absorbent Glass Mat (AGM)
  • Nominal Voltage:12 volts
  • Cranking Amps: 660
  • Maximum Output: 660 amps
  • Amp Hours: 55 Ah
  • Charging Temperature: 32°F - 104°F
  • Discharging Temperature: 5°F - 122°F
  • Weight: 35.17 lbs

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Specifications & Details


General Features
Cranking Amps
660
Amp Hours (AH)
55
Length
9.02"
Width
8.07"
Height
5.43"
Maximum System Wattage
1500 watts
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

ST-550

Weight:

37.00lbs

Internal SKU:

st550

Internal Product ID:

208213

Customer Ratings & Reviews


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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

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  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.