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Rockville

Rockville RFC50F v2 50 Farad Car Audio Capacitor with Blue Voltage Display

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Availability: In Stock.
Fulfilled by Audiosavings
Arrives Friday, Oct 2
Order within 17 hours and 14 minutes
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Style: 50 Farad


Pattern Name: Car Audio Capacitor


Features

  • HIGH POWER HANDLING: Delivers 50 Farads of capacitance to stabilize voltage and support high-demand amplifiers and subwoofers.
  • REAL-TIME MONITORING: 3-digit super bright blue LED display shows precise operating voltage, accurate to +/-0.1VDC.
  • ADVANCED PROTECTION: Includes reverse polarity warning tones and over/under-voltage alarms at +17.5V and -10V for safer operation.
  • PREMIUM DESIGN: Features a blue illuminated window that pulses to music, black wire mesh cover, and durable platinum-plated bolt-down terminals.
  • COMPACT AND PRECISE: Measures 10.83" x 6.38" x 2.36", with low ESR of 0.015 @120Hz and +/-10% capacitance tolerance for optimal system performance.

Description

The Rockville RFC50F v2 50 Farad Digital Hybrid Car Audio Capacitor is engineered to enhance power stability and sound quality in high-performance car audio systems. With an impressive 50 Farads of capacitance, it delivers rapid energy to your amplifier during peak demand, reducing voltage drops and audio distortion. This capacitor features a 3-digit super bright blue LED display for real-time voltage readings, accurate to +/-0.1VDC. A blue illuminated window flashes in sync with the music, while a black wire mesh cover adds a sleek, durable finish. Built-in IC-controlled circuitry provides over-voltage protection at 17.5V, under-voltage alerts at 10V, and warning tones for incorrect polarity connections. Additional performance specs include an ESR of just 0.015 ohm @ 120Hz (25 degree C) and a capacitance tolerance of +/-10%, ensuring consistent, reliable output. Automatic sleep mode conserves energy during low-volume periods. With dimensions of 10.83" x 6.38" x 2.36", it installs easily and integrates seamlessly into most car audio setups. Whether you're a dedicated audio enthusiast or building a competition-grade system, the RFC50F v2 delivers power, precision, and protection in one rugged and stylish package.

Capacitance: 50 farad


Brand: Rockville


Material: Aluminum, Plastic


Shape: Round


Equivalent Series Resistance: 0.02 ohm


Capacitance: 50 farad


Item Shape: Round


Equivalent Series Resistance: 0.02 ohm


Operating Voltage: 50 volts


Capacitance Tolerance: 10


Maximum Voltage: 50 volts


Mounting Type: Bolt-Down Mount


Material Type: Aluminum, Plastic


Item Dimensions W x H: 6.38"W x 2.56"H


Brand Name: Rockville


Item Highlight: Digital Hybrid, Illumination, 3-Digit LED Meter, 20V Surge, Reverse Polarity Warning, Auto Sleep, Low ESR


Warranty Description: 1 YEAR


Unit Count: 1 Count


Manufacturer: Rockville


Number of Packs: 1


UPC: 819216023990


Number of Items: 1


Global Trade Identification Number: 90


Included Components: 1


Item Type Name: Rockville RFC50F v2 50 Farad Car Audio Capacitor w/Blue Voltage Display


Model: RFC50F v2


Part Number: RFC50F v2


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Oct 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Best upgrade to my system
Hear me out... I recently upgraded from 1000 to about 2800 watts running to 2 skar Evl 12s. I wanted to make sure my electrical was perfect, so not only do i have a 2nd battery and a high output alternator, but decided to bite the bullet on this. I didnt believe it would make a difference, but I really felt mt electrical needed a bit more umph. This is single handedly the best upgrade I have ever made to any system. It hold my voltage at idle at 13.4v or higher, even at full bass. No more dimming lights, no more rpm drops...NOTHING. It helped so much, it made me a believer of capacitors. Mind you, I have an XS Power battery up front AND in back, and I would say the capacitor did more than the batteries did as far as keeping voltage up. A few notes: Do the initial charge with the resistor and dont panic if it doesnt start right away. When it does start, youll hear a horrid low voltage alarm, dont panic, this is normal. My voltage on the cap stopped at 8.7v with the resistor, and I decided to hook it up without it (this was about 10 minutes later). Just dont be alarmed when it takes longer than you expect. If youre on the fence, take it from a bass nerd like myself, for $110, you wont regret a single thing about it. ... show more
Reviewed in the United States on March 3, 2026 by Shawna Maier
    • Awesome
Works as great as I wanted it stops my lights from flashing
Reviewed in the United States on August 19, 2026 by Bryan
    • nice unit, didnt suit my needs however.
nice unit, didnt suit my needs however.
Reviewed in the United States on August 7, 2026 by M2
    • Doesn’t work after a month
Purchased this capacitor and installed per instructions and with resister. Seemed to work and turn on but, after a day sitting the capacitor drains my entire battery dead and does not hold a charge if disconnected for a hour. Contacted customer service only to get the run around saying to spend more money and waste more time shipping it back so they can inspect it and if its faulty they would ship a new one and takes about a month. Spend the extra money and get a reputable name brand. ... show more
Reviewed in the United States on October 16, 2025 by Starr
    • Rockville v2 50
Came next day ! This thing works great . My amp kept cutting off & now i can blast it no problem . Hopefully it holds up because its what I needed !
Reviewed in the United States on June 21, 2026 by Brian
    • inadequate
there is absolutely no way this is a 50 farad cap. judging by my expierience with other units on the same system my guess is no more than five farads, and thats being generous. unfortunately i do not have a capacitance tester for more than 1 farad to validate. you would be better off with one other car battery or a standard one farad cap. or two. and the flashing blue lights the thing omits is illegal at best. get the gorilla tape out immeadately or bury this out of sight ... show more
Reviewed in the United States on September 4, 2025 by Roger Rabbitt
    • Big review on a great capacitor
So in the video (for some reason no bass recorded on my iPhone), this song is very bass heavy deep long hitting tones. This is in a system w 2 350 watt rms at 2 ohm sound ordinance amps each independently pushing two 10” fosgate p2 series. I turned on my interior lighting and headlights to show there’s no dip in electrical demand on my jeeps system itself. I took another bud but can only upload 1, thanks Amazon. That song was more metal and heavy fast hard hitting bass and still never dropped below 13.3 volts. My system hits HARD and runs at a 2ohm load, honestly this cap held up better than a boss capacitor I had in previously which developed a harmonic resonance that was very annoying in less than a year. My only negative and reason it didn’t get 5 stars is the display shuts off sometimes after 5 ish minutes. The remote lead and all wiring is connected properly so I’m not sure why other than a defect ... show more
Reviewed in the United States on January 22, 2023 by J war
    • ⭐️⭐️⭐️⭐️⭐️ A Beast of a Cap — Keeps Voltage Locked
Rockville RFC50F v2 50 Farad Car Audio Capacitor ⭐️⭐️⭐️⭐️⭐️ A Beast of a Cap — Keeps Voltage Locked If you’re running a real system with high draw, this cap holds it down. I’m using it on a multi-amp setup with 3000W RMS and it absolutely helps stabilize voltage during drops. The digital display is bright, accurate, and looks clean on the rack. Easy to install and clearly makes a difference. If you’re pushing heavy bass, this is a must. ... show more
Reviewed in the United States on July 27, 2025 by David Rule

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