---
product_id: 183769154
title: "RFC50F v2 50 Farad Car Audio Capacitor, 3-Digit Super Bright Blue LED Voltage Display, Polarity Alerts, Heavy-Duty Terminals, for Car Audio Systems"
brand: "rockville"
price: "$263.32"
currency: USD
in_stock: true
reviews_count: 12
category: "Rockville"
url: https://www.desertcart.us/products/183769154-rfc50f-v2-50-farad-car-audio-capacitor-3-digit-super
store_origin: US
region: United States of America
---

# 50 Farads high-capacity power reserve 3-digit super bright blue LED voltage display Built-in polarity & voltage protection alerts RFC50F v2 50 Farad Car Audio Capacitor, 3-Digit Super Bright Blue LED Voltage Display, Polarity Alerts, Heavy-Duty Terminals, for Car Audio Systems

**Brand:** rockville
**Price:** $263.32
**Availability:** ✅ In Stock

## Summary

> 🔊 Rock your ride with power, precision, and pulse—because your sound deserves the best!

## Quick Answers

- **What is this?** RFC50F v2 50 Farad Car Audio Capacitor, 3-Digit Super Bright Blue LED Voltage Display, Polarity Alerts, Heavy-Duty Terminals, for Car Audio Systems by rockville
- **How much does it cost?** $263.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/183769154-rfc50f-v2-50-farad-car-audio-capacitor-3-digit-super)

## Best For

- rockville enthusiasts

## Why This Product

- Trusted rockville brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Low ESR (0.015Ω) and tight capacitance tolerance (+/-10%) in a space-saving 10.83" x 6.38" x 2.36" form factor.
- • **Safety Meets Style:** Polarity warnings and over/under-voltage alarms protect your gear while the pulsing blue window syncs with your beats.
- • **Power Your Bass Like a Pro:** 50 Farads of rapid energy delivery to crush voltage drops and keep your amps locked in.
- • **Stay In The Know, Instantly:** Real-time, ultra-precise voltage readout (+/-0.1V) on a vibrant blue LED display—no guesswork.
- • **Built to Last, Designed to Impress:** Durable platinum-plated terminals and sleek black wire mesh cover for a premium, competition-ready look.

## Overview

The Rockville RFC50F v2 is a 50 Farad car audio capacitor engineered for high-performance systems, delivering stable voltage and reducing distortion. Featuring a bright 3-digit blue LED voltage display with +/-0.1V accuracy, it offers advanced protection with polarity alerts and voltage alarms. Its durable design includes platinum-plated terminals and a stylish pulsing blue window. Compact with low ESR and tight capacitance tolerance, it seamlessly integrates into any car audio setup to enhance power delivery and sound quality.

## 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.

Review: ⭐️⭐️⭐️⭐️⭐️ 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.
Review: Great deal - Love it! It keeps constant voltage to 2 amps!

## 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 0.015Ω @120Hz and +/-10% capacitance tolerance for optimal system performance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08298MNJC |
| Best Sellers Rank | #21 in Car Amplifier Capacitors |
| Capacitance Tolerance | 10 |
| Customer Reviews | 4.1 4.1 out of 5 stars (294) |
| Date First Available | December 3, 2019 |
| Item Weight | 4.66 pounds |
| Item model number | RFC50F v2 |
| Manufacturer | Rockville |
| Maximum Voltage | 50 Volts |
| Mounting Type | Bolt-Down Mount |
| Operating Voltage | 50 Volts |
| Other display features | Wireless |
| Product Dimensions | 6.38"W x 2.56"H |
| UPC | 819216023990 |
| Whats in the box | 1 |

## Product Details

- **Brand:** Rockville
- **Capacitance:** 50 Farad
- **Equivalent Series Resistance:** 0.02 Ohms
- **Material:** Aluminum, Plastic
- **Shape:** Round

## Images

![RFC50F v2 50 Farad Car Audio Capacitor, 3-Digit Super Bright Blue LED Voltage Display, Polarity Alerts, Heavy-Duty Terminals, for Car Audio Systems - Image 1](https://m.media-amazon.com/images/I/81lvYWqIJDL.jpg)

## Questions & Answers

**Q: Can you turn turn off the blue lights?**
A: I haven't tried to but if you take it apart you probably can.  My suggestion If you dont like the flashing lights just use electrical tape to cover it.

**Q: The top says 30 Farad then down below says 50 Farad for $79.95 which is it?**
A: You can choose they have 2 option either pay $74.95 for a 30 farad or $79.95 for a 50 farad.  I brought the 30 farad because that’s what they have had all this time but it’s seems that they come out with a newer one

**Q: There's no buy button?!?!**
A: Then it’s out of order

**Q: Going to try this question again "The top says 30 Farad then down below says 50 Farad for $79.95 which is it?"**
A: I'm not sure because I've had mine almost 2 years now and I dont look at it that frequently

## Customer Reviews

### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ A Beast of a Cap — Keeps Voltage Locked
*by D***E on July 27, 2025*

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.

### ⭐⭐⭐⭐⭐ Great deal
*by A***. on December 13, 2025*

Love it! It keeps constant voltage to 2 amps!

### ⭐ Doesn’t work after a month
*by S***R on October 16, 2025*

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.

## Frequently Bought Together

- Rockville RFC50F v2 50 Farad Car Audio Capacitor w/Blue Voltage Display
- Tottist 4PCS Heavy-Duty Car Stereo Audio Wire Reducer - 0 Gauge to 4 Gauge for Amp Input, AWG Pin Power & Ground Connection
- TKDMR 10pcs 1/0 AWG-3/8 Battery Lugs,Heavy Duty Wire Lugs,Ring Terminals,Battery Cable Ends,0 Guage terminals,Battery Terminal Connectors with 10pcs 3:1 Heat Shrink Tubing

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/183769154-rfc50f-v2-50-farad-car-audio-capacitor-3-digit-super](https://www.desertcart.us/products/183769154-rfc50f-v2-50-farad-car-audio-capacitor-3-digit-super)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-01*