Gravity

Gravity GR5.0 Car Audio 5 Farad Capacitor & 0 Gauge Wiring Kit

4.0 (1 reviews)

Give your car audio amp the stable power it needs — a 5 Farad capacitor and complete 0-gauge wiring kit bundled for one-stop installation.

$109.00*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Gravity GR5.0 bundles two of the most foundational components of a high-power car audio installation — a 5 Farad stiffening capacitor and a complete 0-gauge amplifier wiring kit — into a single package. The capacitor's job is electrical: it stores charge at a high discharge rate, acting as a local reservoir between your vehicle's battery and your amplifier. When a bass transient hits and your amp briefly demands peak current, the cap responds in milliseconds to prevent the voltage sag that causes dimming headlights, compressed dynamics, and amplifier protection circuits engaging unnecessarily. At 5 Farads, it's sized for systems in the 3,000–5,000W range, and the onboard digital blue voltage display provides a real-time window into your electrical system's health — useful both during commissioning and as an ongoing diagnostic readout.

The 0-gauge wiring kit is the practical companion that makes the capacitor functional out of the box: 17 feet of heavy 0-gauge power cable covers the majority of passenger vehicle amp-to-battery runs, and the included 3-foot ground cable, 18-gauge turn-on wire, inline 150A ANL fuse, and terminal hardware mean you won't need a separate accessories order to get the install done. This bundle is most valuable to enthusiasts stepping up to a serious SPL or high-output SQ build who want to address both power storage and wiring quality in one purchase. More modest setups under 1,500W will find the capacitor oversized, but the wiring kit quality remains relevant at any power level. Install tip: wire the capacitor display to an ignition-switched source to prevent standby battery drain during extended parking.

Key Features

5 Farad Capacitor and 0 Gauge Amp Kit

Chrome Plated Battery Post and Lightning LED

Digital Blue Voltage Display

High Quality Thick 17 Feet FT 0 Gauge GA Power Cable

All Accessories / Terminal Included! Perfect for Car / Truck / Motorcycle / RV / ATV

Specifications

Brand
Gravity
Model
GR5.0 + BGC0XLB
Capacitor Capacitance
5 Farad
Voltage Display
Digital Blue LED
Battery Post
Chrome Plated
Power Cable
17 ft, 0 Gauge
Ground Cable
3 ft, 0 Gauge
Turn-On Cable
17 ft, 18 Gauge
Fuse Holder
Inline ANL
Fuse Rating
150A
Compatible Vehicles
Car, Truck, Motorcycle, RV, ATV
ASIN
B08Q7FQPVW

Pros & Cons

👍 Pros

  • 5 Farad capacitance provides substantial power reserve headroom for high-demand bass transients that would otherwise cause voltage sag
  • Complete 0-gauge wiring kit eliminates the need to source individual components — power cable, ground, turn-on wire, fuse holder, and terminals are all included
  • Digital blue voltage display gives real-time battery voltage readout directly on the capacitor without a separate voltmeter
  • Chrome-plated battery post and quality cable jacket present a clean, professional finished installation
  • Universal compatibility makes it suitable for car, truck, motorcycle, RV, and ATV audio installations

👎 Cons

  • The digital LED voltage display draws a small continuous current — wiring to a switched ignition source rather than direct battery is recommended to prevent parasitic drain
  • The 150A fuse may be undersized for true 5,000W system builds; high-power installers should evaluate upgrading the fuse and holder accordingly
  • 3-foot ground cable is short — sufficient for trunk installations but may not reach chassis ground points in all vehicle configurations
  • 5 Farad sizing is oversized for entry-level or mid-power audio setups, making this kit less cost-efficient for systems under 2,000W

Frequently Asked Questions

A capacitor acts as a local power reserve that sits between your car's battery and your amplifier. When your amp hits a loud bass transient and briefly demands more current than the battery can deliver, the capacitor discharges to fill that gap. The practical result is reduced voltage sag — which shows up as headlights dimming or amp performance dropping during heavy bass hits.
The common rule of thumb is 1 Farad per 1,000 watts of amplifier power. At 5 Farads, this cap is sized for systems in the 3,000–5,000W range. For a modest 500–1,000W system, it will work but is oversized — a 1F or 2F unit would suffice. For high-power builds, the extra headroom is not overkill.
The kit includes a 17-foot 0-gauge power cable, a 3-foot 0-gauge ground cable, a 17-foot 18-gauge turn-on cable, an inline ANL fuse holder with a 150A fuse, and all required terminals and accessories. Seventeen feet covers most sedans and crossovers with the amp mounted in the trunk; extended cab trucks or vehicles with longer cable runs may need a supplemental extension.
The digital blue voltage display draws a small amount of standby current. For vehicles parked for extended periods — over several days — this can contribute to battery drain. Most installers wire the capacitor to an ignition-switched circuit to eliminate this concern.
A 150A ANL fuse on a 0-gauge run is a standard protective rating for systems up to approximately 1,500–2,000W. For higher-power builds pushing toward the 5,000W the kit's marketing references, a 200A or 250A fuse with a corresponding higher-rated fuse holder should be considered.