Stinger SPC505

5 Farad Pro Digital Hybrid Capacitor

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• Digital 5 Farad Capacitor
• Bright Red LED Voltage Display
• Monitor System Voltage
• 12-16 Volt Operation / 18 Volt Surge
• Louder And Cleaner Bass Response

Learn more about the spc505
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Product Highlights

• Digital 5 Farad Capacitor
• Bright Red LED Voltage Display
• Monitor System Voltage
• 12-16 Volt Operation / 18 Volt Surge
• Louder And Cleaner Bass Response


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Authorized dealer

General Features:

  • Digital 5 Farad Hybrid Capacitor
  • 5 farad capacitor for systems up to 1000 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

Specifications & Details

Capacitor Specifications
Capacitance (farads)
5 farads
LCD Meter Display
Maximum Input Gauge Size
1/0 AWG
Maximum Output Gauge Size
1/0 AWG
Built-In Distribution Block
Primary Color
Secondary Color
Red LED lights
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Item Details


Model Number:




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Internal Product ID:


Product and How-to Videos

Customer Ratings & Reviews

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Customer Reviews

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Money well spent

I ended up upgrading my cap from a cheap 4 Farad to the Stinger. Huge improvement. Surprisingly my negative review of the old cap is gone...

- Nice size for 5 Farads
- I love the remote line to turn the cap on and off
- Solid metal box
- Really cheap plastic feet to attach to car. For the price I would have expected something a little nicer and sturdier. I was also short two screws to attach the feet to the cap. Stinger support is great and sent out replacements.

All in all, I think it was well worth the extra cost.

By Stephen on November 8, 2013


found this helpful.

good price

good price and works good had no problems with it since the install.

By rick on February 23, 2013


found this helpful.

Great Product

Im running two Rockford Fosgate amps in my truck and don't have enough room for an extra battery so I figured i'd try a capacitor as my lights were dimming a bit at high volumes. The Stinger 5 farad cap not only fits in a small spaces, but performs very well. My lights don't dim at all now and I can listen to my jams at high volumes even at night. Great product and a great price! NOTE: I am running a Rockford Fosgate T500.1dbcp and a T600.4 and the result was great. Im not saying that this product works miracles, but seems to do well with my setup. I'm also using an optima deep cycle battery as the main battery in the truck.

By Aaron on January 28, 2013


found this helpful.

Best cap on the market, from the best supplier period!

Picked this up instead of a battery as I did not want a battery behind my seat in my Sonoma. I have done every electrical upgrade, Big3, Largest GM alternator on the planet, 0 gauge through out. No corners were cut there, and I still had my lights dim and my voltage drop! I knew I needed more power and this 5 farad monster gave me just what I needed. I will be running an xs power d3400 as my underhood battery. With the stinger spc505 on the xs power d3400 my voltage issues are a thing of the past. This hybrid cap is exactly what you need so stop wasting your time on lesser products, save you cash and make this bad boy a forever home in your mobile audio set up! Sonic Electronix is my #1 stop for everything thing car audio period and they are the best supplier in the world!!! Love my new product, and I love the peace of mind shopping with you guys, SE you rock!!!

By T&J on June 10, 2015 Checkmark Icon Verified purchase


found this helpful.

Great product

the Singer SPC 505 is a great buy for those on a budget and it works great!!

By another canadian on May 16, 2015


found this helpful.

Well made product and Design

I would recommend for anyone running 1 battery 1 amp 3000 Watts or less

By Jason on November 11, 2017 Checkmark Icon Verified purchase


found this helpful.

Great product

I most definitely recommend this battery if u got system in the back of your car this help your system feed more power !!!!!

By Dee on February 18, 2018 Checkmark Icon Verified purchase


found this helpful.


Awesome capacitor works great love the voltage adjustment makes refining things easy very small in size big in capacity true 5 farad only the best from stinger.

By Ian on September 27, 2021 Checkmark Icon Verified purchase


found this helpful.

Stinger SPC505

The ratings , and reviews say it's a very good Cap , I've had it for a week far no complaints or issues ,( I have a 2100 watt system , High out put t alternator , big 3 wiring kit , and a 1800 amp Kinetik battery )

By Music Maker on December 16, 2016


found this helpful.

Lmao @ everybody

Man. Get some xenon headlights already youll. God damn. And some leds in the rear while youre at it. Boom no more headlight dimming. What a bunch of clowns. I did buy one of these to boost my voltage up to 16. Seeing as how it has a dial to set it with. Now theres some power. 3000w rms @ 14.4 or 3500w at 16v. So basically smoothing out the power supply and getting an extra 500w rms to my sub. Good thing it can take 4k all day.

By charles on June 27, 2016 Checkmark Icon Verified purchase


found this helpful.


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Essential add-ons
NVX Precut Power/Ground Wire (1/0 AWG)

5 ft. of NVX's HyperFlex power/ground cable with high-current transfer and gunmetal gray insulation.



Add to cart

20 Ft Pre-Cut Piece of 1/0 Gauge EnvyFlex Power or Ground Wire



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