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NVX XCAP10H (TRUE 10 FARAD CAPACITANCE)

True 10 Farad Stiffening Hybrid Capacitor with Digital Display and Built-in Distribution Block

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• For High-Powered systems
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

Learn more about the xcap10h
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List price $371.99
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$299.99

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NVX - Worth the Envy - Direct to Consumer Car Audio

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Product Highlights


• For High-Powered systems
• Bright Blue LED Voltage Display
• Improves Bass Response (SPL)

Description


NVX brand icon

Authorized dealer

NVSX Hybrid Capacitor
Digital Readout Built-In Power Distribution Hybrid Technology
Improves Bass Response SPL

General Features:

  • NVX Digital 10 Farad Hybrid Capacitor (Cap)
  • True 10 farad capacitor for high-powered systems
  • Bright blue LED voltage display
  • Built-in distribution block
  • Improves bass response (SPL)
  • Increases the peak power of your amp
  • Helps reduce dimming lights
  • Screw terminals for easy connections of 1/0 AWG or 4 AWG power/ground cable
  • Includes mounting hardware for a secure installation
  • Color: Black
  • Dimensions: 10.25"L x 6"W x 2.25"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Frequently Asked Questions (FAQ)


Never connect a "dry" cap directly to the battery. Use the included resistor between the battery and the cap's (+) terminal. Once the display hits 12V, remove the resistor and bolt the cable down to prevent a dangerous spark.
Not necessarily. A cap is a buffer, not a battery. Ensure your Ground is the same gauge as your power wire and on bare metal. If dimming continues, your alternator likely cannot keep up with the total current draw.
The display is voltage-sensing. Ensure the small Remote (REM) terminal is connected to your radio's turn-on wire. This triggers the circuitry to wake up when the car starts and shows the real-time voltage of your system.
Always mount within 18" of the amplifier. The goal is an instant "burst" of current during bass hits. Mounting it too far away increases resistance, which prevents the cap from delivering power fast enough to be effective.
Unlikely. Bypass the cap and connect the amp directly to the battery. If it still pops, the amp is defective. If it stops, ensure the cap and amp share the same solid chassis ground to prevent a voltage "offset" or ground loop.

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Specifications & Details


Capacitor Specifications
Capacitance (farads)
10 farads
LCD Meter Display
Yes
Built-In Distribution Block
Yes
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

NVX

Model Number:

XCAP10H

Weight:

5.00lbs

Internal SKU:

xcap10h

Internal Product ID:

40526

Product and How-to Videos


Customer Ratings & Reviews


NVX XCAP10H (TRUE 10 FARAD CAPACITANCE) thumbnail image

5 star
91%
4 star
6%
3 star
2%
2 star
0%
1 star
0%



Durability
4.9
Value
4.9
Features
5
Design
4.9
Usability
5

Customer Photos & Videos


Customer Reviews

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NVX cap

I have a 2200 watt hifonics amp pushing my subs (hard) and a hifonics 1000 watt four channel running my components. Never once have I had headlight dim or anything. If youre looking to save some money by not buying another batter/alt this is for sure the way to go.

By Sam on October 12, 2014

101 found this helpful


Awesome Cap!

Had to give it a try and it did its job as described. This cap made a big improvement in my system, bass response was better and much less power loss to my aux equipment. Never been a believer in capacitors but this one changed my mind, very happy with my purchase! You will not be disappointed.

By CJ on October 26, 2014

92 found this helpful


Great investment

Bought it,installed it, car is now thumping, no dimming

By Ruben on December 15, 2014

90 found this helpful


capacitor

easy to hook up very flexible install , works like a charm a very good product

By javier on January 16, 2014

92 found this helpful


IT'S GREATTTTT!!!!

The Nvx XCAP10H is a fantastic product, my other capacitor died and I needed another. So I upgraded to this one couldn't be happier

By KC64 on April 14, 2014

89 found this helpful


Very sleek and powerful

Great for a dual amp setup. I'm running two 5000 watt re-audio amps to two re-audio 15xxx's. The cap alone could handle short runs, but after added a second battery, it never drops below 12 volts. The cap looks great and only displays the voltage when it changes. Big punch in a small package!

By Chris on May 30, 2013

86 found this helpful


one to buy!

This thing rocks,very slim,very easy to install. Would recommend this cap if your looking for something that can be mounted almost any wear. You can use 4 or 8 gauge, it even drops down to 0 gauge. Very cool product

By slapp on February 8, 2013

83 found this helpful


One of the best!

I have installed somewhere around 30 capacitors in the automotive world and each one has some kind of drawback, sometimes even making me uninstall the cap in favor of another one. This cap, however, is one of the best I have ever used. I am having a difficult time finding anything negative to say about this cap. Somehow, NVX managed to fit 10 farads into one small package. Upon further reverse-engineering of this unit, I discovered one small oil cap, and numerous electrolytic caps. This hybrid approach really delays the need for additional batteries in the trunk because it has mechanisms for quick and slow power delivery in one little box. This kind of technology will never reduce your need for a higher-powered alternator; if your system draws more than your current alternator can sustain you need a bigger alternator. This cap reduces voltage fluctuation in the system which can be noticed with "dimming lights". Voltage fluctuation in my system before the cap was about 2.5v with a properly sized alternator. Now my voltage fluctuation is at a cool .4v!

By Derek on October 19, 2015

60 found this helpful


Not sure

I haven't had a chance to put this to the test. Unit is easy to install, however the manual could be a bit more specific. Had to watch you tube videos to figure out how to properly charge and discharge it.

By Jason on August 24, 2015

60 found this helpful


Well worth the money so far

I give it a 4 simply because the instructions are either read in a understanding but not accurately helpful like what size fuse you are supposed to use and didnt mention if your supposed to fuse from the amp to the cap and cap to the battery it says to fuse to charge the battery and then that how to charge is confusing. You should ( sonic) should put a instructional video that is about this cap and only this cap. I hope this helps whenever wants one just make sure you know what your doing or you can hurt yourself. I use a 1500bd and a t2 s1 and 2 batteries and this cap big 3 and ho 180amp alternator and this cap was worth buying it helps my car even when I'm not using my stereo I feel and notice the difference from turning my headlights on up and down the windows no idle drop at all. 97 honda prelude

By David on October 2, 2020 Checkmark Icon Verified purchase

53 found this helpful



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List price $371.99
-19% $299.99
$239.99 with coupon | Price details
2026-06-28 23:59:00
15% off an NVX XCAP10H w/ Select Amp Kits Add a qualifying amplifier to your cart and save 15% on the NVX XCAP10H Capacitor! No code needed — discount applies automatically at checkout.
Purchase $400 or More of NVX and Save 15%!
2026-07-27 11:08:20
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