Garage
Shop

Boss CAP20

20 Farad Digital Hybrid Capacitor with Blue Illumination

Boss
Shop all Boss
Product videos
highlight-star-icon

20 Farad Digital Hybrid Capacitor with Blue Illumination • 3-Digit, super bright LED voltage meter • Voltage measure accurate to +/- 0.1VDC • Blue illuminated window • Warning tones for reverse polarity connection, over voltage (>17VCD), or low battery voltage (<10VDC)

Learn more about the cap20

We apologize

This item has been discontinued

Product Highlights


20 Farad Digital Hybrid Capacitor with Blue Illumination • 3-Digit, super bright LED voltage meter • Voltage measure accurate to +/- 0.1VDC • Blue illuminated window • Warning tones for reverse polarity connection, over voltage (>17VCD), or low battery voltage (<10VDC)

Description


Boss brand icon

Authorized dealer

  • 20 Farad Digital Hybrid Capacitor with Blue Illumination
  • 3-Digit, super bright LED voltage meter
  • Voltage measure accurate to +/- 0.1VDC
  • Blue illuminated window
  • Warning tones for reverse polarity connection, over voltage (>17VCD), or low battery voltage (<10VDC)
  • Working voltage: 16VDC
  • Surge voltage: 20VDC
  • ESR (Equivalent Series Resistance): 0.015 ohm @ 120Hz, 25°C
  • Capacitance tolerance: +/- 10%
  • Dimensions: 11"L x 7-1/2"W x 3-1/4"H
  • 1-year Manufacturer's warranty

Best selling similar products

XCAP10H small

NVX XCAP10H (TRUE 10 FARAD CAPACITANCE)

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

(47)

$299.99

List price $371.99

RFC10HB small

Rockford Fosgate RFC10HB 10 Farad Hybrid Capacitor

• 10 farad Hybrid Digital Capacitor
• Increases quality of sound
• Increases level of bass
• Platinum plated

(46)

$529.99

List price $709.99

BB1D small

Belva 1.0 Farad Capacitor

• 1.0 Farad Power Capacitor
• Perfect for Systems up to 1000 Watts
• Audible Warning
• Red Voltage Display
• Mounting Brackets Included

(80)

$38.99

List price $79.99

Specifications & Details


Capacitor Specifications
Capacitance (farads)
20 farads
LCD Meter Display
Yes
Maximum Input Gauge Size
4 AWG
Maximum Output Gauge Size
4 AWG
Built-In Distribution Block
No
Primary Color
Silver
Illumination
Blue LED lights
Width
7-1/2"
Height
3-1/4"
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

CAP20

Weight:

8.00lbs

Internal SKU:

cap20

Internal Product ID:

13312

Product and How-to Videos


Customer Ratings & Reviews


Boss CAP20 thumbnail image

5 star
40%
4 star
60%
3 star
0%
2 star
0%
1 star
0%



Durability
4.2
Value
4.2
Features
4.8
Design
5
Usability
4

Customer Reviews

Sort by:

Loading...

headlights dont dim

I don't have any other products to compare it to yet.

This may be the reason that my amp cuts out at extreme volume output, others are that I may need a better ground, an additional sub crossover, or I may have a defective sub or amp. Overall I think this product is good. I think if I do another install I will upgrade to the next size up from this company and go ahead and throw the extra battery in the trunk.

I seriously doubt this thing can hold 20 farads, (20,000 watts) of juice. However, it is still pretty heavy duty for a car audio cap. People with superior amps and subs dont touch what my system does, and I think its the cap rather than the dynamat or brand selections. Most people dont use a cap, and since they are less than a hundred bucks this makes them idiots.

I may be an idiot for not doing a diode assisted installation charge, I'd reasearch the need If I were you. System still works well, I have a few kinks to get out, but I doubt the cap is one of them.

By -Benjamin on July 22, 2012

5 found this helpful


great product

Great product. Lights up cool, but the lights didn't dim at all. I was pushing 2 Kicker CVR's at 1 ohm on a DB Drive 1000.1 amp.

By Port Arthur on March 1, 2012

4 found this helpful


Boss CAP20

This is good stuff, but its not the best quality, I am living in Ukraine, and my father is electrician, and he says that this capacitor does not have 20 farad, only 2-3. but it very good looking in my car.

By Igor on December 20, 2008

4 found this helpful


good deal

My boss20 cap it cool but after about 3 months my lights start to dim in the inside of my car i upgrade my batteries (under the hood & trunk ) maybe need to upgrade from 4gauge to 0 gauge.

By chop on January 10, 2013

3 found this helpful


boss cap20

this good stuff, very good looking, working well, i never have problem with boss, i have boss 12, and cap help my amplifier to full load my sub.

By boydaig on March 3, 2009

2 found this helpful



Related Searches


Save up to 10 different vehicles in your garage

Add vehicle
Loading...
Identify your vehicle and submodel details
  • Owner's manual
  • Vehicle's insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver's side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
Car Info Side Door Icon
Vehicle Registration Icon
Vehicle Insurance Icon

Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.