Auxiliary Battery Combo Package

XS Power XP750-CK XP750 AGM Battery Power Cell w/ Installation Kit + Stinger SPC505 5 Farad Pro Digital Hybrid Capacitor + NVX XBG3PK Big 3 Kit

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XS Power XP750-CK

XP750 AGM Battery Power Cell + Installation Kit for 1000-1500 Watt Audio Systems
Quantity: 1

What's In The Box?
  • (1)XS Power XP750 Battery
  • (1) Battery Holder
  • (1) 18 ft. 4 Gauge XP FLEX BL Cable
  • (1) 3 ft. 4 Gauge XP FLEX Ground Cable
  • (6) XS Power Brand Heat Shrink
  • (6) 4 Gauge Crimp Terminals
  • (2) Battery Clamps
  • (2) Grommets
  • (2) Fuse Holder, ANL, Set Screws
  • (2) Fuse, ANL, 200A
  • (10) Wire Clamps
  • (10) Zip Ties
  • (10) Screws

Wiring Features:

  • All-in One Battery plus Battery Wiring Kit
  • Designed for 600-800 watt audio systems
  • 4 gauge Pre Ring terminated power and ground wire with protective heat shrink wrap
  • Thick but flexible CCA Copper-Clad Aluminum wiring
  • XP FLEX Frosted Black ground wire
  • XP FLEX Frosted Blue ground wire
  • Complies with American Wire Gauge (AWG) standards
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty
Recommended Accessories:
  • A Battery Isolator is STRONGLY recommended when installing a second battery:
    • Prevents secondary battery from draining the starting battery
  • Big 3 Upgrade Kits:
    • To get the most out of your new power system check out our Big Three Upgrade Kits

Battery Features

  • 12-Volt Deep Cycle AGM Power Cell
  • Sealed absorbed glass mat (AGM) design
  • Designed for use as an additional battery to power your high-performance sound system
  • Leak-Proof, non-hazardous design
  • Stores energy so you don't need a capacitor for your system
  • No external vents allow this battery to be mounted in any position with no leaks
  • Resists extreme vibrations for ultimate performance
  • 100% Sealed and maintenance free
  • M6 Terminal hardware included
  • XS Power 580 terminal post adapters available
  • Authorized Internet Dealer
  • 2-year Manufacturer's warranty
Battery Specifications
  • Cranking Amps: 750
  • Maximum Output: 750 Amps
  • Amp Hours: 22
  • Weight: 14.5 lbs
  • Dimensions: 7-1/8โ€L x 3-1/16โ€W x 6-3/4โ€H

Note: This battery is intended to be used as an auxiliary battery (trunk or marine applications). Not intended for under the hood or extreme heat.

Check out the XS Power XP750-CK Installation Procedure

PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling. For more information, visit

Stinger SPC505

5 Farad Pro Digital Hybrid Capacitor
Quantity: 1

General Features:

  • Digital 5 Farad Hybrid Capacitor
  • 5 farad capacitor for systems up to 3500 watts
  • Bright red LED voltage display
  • performs similar to a capacitor/battery combo
  • Louder and cleaner bass response
  • Monitor system voltage
  • 12-16 volt operation / 18 volt surge
  • Uses screw terminals for use with 0/4 gauge of power/ground cable
  • Includes mounting hardware for a secure installation
  • Color: Black
  • Dimensions: 7-1/2"W x 5-1/4"D x 3"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

NVX XBG3PK Big 3 Kit with True 0 Gauge 100% Oxygen-Free Copper

1/0 AWG Big 3 Upgrade Kit with 100% OFC Wire for Audio Sytems up to 350 Amps
Quantity: 1

General Features:

  • 100% OFC (Oxygen Free Copper) 1/0 Gauge Big 3 Upgrade Kit
  • Use to upgrade your factory battery ground wire, alternator ground wire and alternator power wire
  • Use to solve issues with dimming lights
    • More effective than a capacitor when experiencing dimming lights
  • Makes electrical system run more efficiently
    • Deeper bass
    • Amps run cooler and are less likely to go into protect mode
  • Use for systems 350A or less
  • Thick but flexible 100% OFC wiring
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

What's in the Box?

  1. 4' 1/0 AWG Ground Cables w/ Ring Terminal (x 2)
  2. 6' 1/0 AWG Power Cable w/ Ring Terminal (x 1)
  3. Black Nylon Cable Clamps (x 10)
  4. 1/2" #8 Wafer Head Tek Screws (x 10)
  5. 8" Black Zip Ties (x 10)
  6. Additional Ring Terminals (x 3)

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Auxiliary Battery Combo Package

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Auxiliary Battery Combo Package

XS Power XP750-CK XP750 AGM Battery Power Cell w/ Installation Kit + Stinger SPC505 5 Farad Pro Digital Hybrid Capacitor + NVX XBG3PK Big 3 Kit


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