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DS18 INF-55AH

12V 55Ah Absorbent Glass Mat (AGM) Motorcycle and ATV Power Cell Battery

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• 12.8-volt Absorbed Glass Mat (AGM) Battery
• Sealed Absorbed Glass Mat design
• Perfect for 1750W motorcycle and ATV audio systems
• Thread Lead Alloy Recessed / M6 Bolt
• Mounts upside down or in multiple configurations

Learn more about the inf55ah
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List price $309.99
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$257.95

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Description


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Infinite AGM Power Cell Battery

The DS18 Infinite AGM Power Cell Battery line represents a high-performance electrical solution engineered specifically to support the rigorous current demands of high-output car audio systems. Built using advanced Absorbed Glass Mat (AGM) technology, these premium batteries suspend electrolyte fluid inside high-purity fiberglass mats to optimize energy transfer. This completely sealed, maintenance-free, and non-spillable design gives installers the flexibility to mount the power cell in various orientations within tight cabin or trunk cavities while offering maximum safety and superior resistance to severe vehicle vibrations.

Designed to eliminate devastating voltage drops, dimming headlights, and amplifier clipping during intense bass peaks, the Infinite AGM platform features an ultra-low internal resistance profile that facilitates exceptionally fast discharge rates and rapid charging recovery. The internal lead-calcium grids are tightly packed and housed within a rugged, heat-resistant ABS plastic casing, maximizing cell plate compression to extend the battery's deep-cycle lifespan. Serving as a rock-solid electrical foundation, this power cell delivers clean, consistent burst current to keep multi-amplifier builds performing at their full musical potential with uncompromised 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:

  • 12.8-volt Car Absorbed Glass Mat (AGM) Battery
  • Compatible with car applications
  • Perfect for 1750W motorcycle and ATV audio systems
  • Sealed Absorbed Glass Mat design
  • Thread Lead Alloy Recessed / M6 Bolt terminals ensure a secure connection
  • Offers multiple options for add-on terminals and busbars
  • Can be mounted upside down or in multiple configurations
  • Dimensions: 9" W x 5.43" D x 8.46" H
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Battery Specifications:

  • BCI Group: U1R
  • Battery Type: Absorbed Glass Mat (AGM)
  • Nominal Wattage: 1750 watts
  • Nominal Voltage: 12.8 Volts
  • Cranking Amps: 825 Amps
  • Amp Hours: 55 Ah
  • Capacity: 55 Ah @ 10 hour rate to 1.8V
  • Recommended Charging Current: 16.5 Amps Max
  • Nominal Operating Temperature: 77°F +/- 5°
  • Weight: 37.50 lbs.

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Specifications & Details


General Features
Cranking Amps
825
Amp Hours (AH)
55
Length
9"
Width
5.43"
Height
8.46"
Maximum System Wattage
1750 watts
BCI Group Number
U1R
Warranty and Return Policy
Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

INF-55AH

Weight:

37.50lbs

Internal SKU:

inf55ah

Internal Product ID:

216137

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

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • 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.