
Gravity
Gravity GR5.0 Car Audio 5 Farad Capacitor & 0 Gauge Wiring Kit
★★★★★
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*
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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
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
What does a 5 Farad capacitor actually do for a car audio system?
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.
Do I need a 5 Farad capacitor, or is that overkill for my setup?
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.
What does the 0-gauge wiring kit include, and is the 17-foot power cable long enough for most vehicles?
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.
Is the digital voltage display on the capacitor always active, and does it drain the battery when the car is off?
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.
Will the 150A fuse protect my electrical system adequately?
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.