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BOSS Audio Systems CAP18 18 Farad Car Capacitor - Energy Storage, Enhanced Bass

SpeeceInc
(13597)
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US $101.22
List price US $182.99 (45% off)What does this price mean?
Recent sales price provided by the seller
as low as $34.53/mo with
Condition:
New
Out of Stock60 sold
Shipping:
Free 2-3 day delivery
Get it between Wed, Oct 29 and Thu, Oct 30 to 94104.
Located in: Oxnard, California, United States
Returns:
30 days returns. Seller pays for return shipping.
Payments:
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eBay item number:284216426014
Last updated on Jul 23, 2025 09:04:02 PDTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
UPC
791489108980
Brand
Boss
MPN
CAP18
Category

About this product

Product Identifiers

Brand
Boss
MPN
CAP18
GTIN
0791489108980, 0840023823480
UPC
0791489108980, 0840023823480
eBay Product ID (ePID)
2254918037

Dimensions

height
3.20in.
length
11in.
Weight
7.75in.
depth
10"

Item description from the seller

About this seller

SpeeceInc

97.7% positive feedback•85K items sold

Joined Jun 2019
Speece, Inc. is committed to providing a vast selection of excellent products and superior service to our valued customers. We strive to provide the best possible customer experience in all of our ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

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Seller feedback (14,856)

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  • 3***s (554)- Feedback left by buyer.
    Past year
    Verified purchase
    Great and super fast shipping!
  • 7***9 (1697)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Very nice thank you
  • z***a (692)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great
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Product ratings and reviews

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4.3
44 product ratings
  • 34 users rated this 5 out of 5 stars
  • 2 users rated this 4 out of 5 stars
  • 2 users rated this 3 out of 5 stars
  • 1 users rated this 2 out of 5 stars
  • 5 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 24 reviews
  • by lakdis8
    Jun 19, 2017Top favorable review

    It's capable of storing lots of power and acts as an accumulator. Solved the problem of dimming/flickering problem of my car .

    It truly has a capability of storing lot of power and delivering instantly as per the sudden demand of the power amp. I'm using BOSS 2400w RIOT class D amp with Pioneer 12" sub with huge power input. If you have done correct wiring with correct gauge of wire believe me NO DIMMING !! NO FLICKERING !! I recommend 18 Farad or higher would be ideal if you are using a high power amp.. Many thanks to the seller for speedy shipping. I offer 5 stars all the way for everything.

    Verified purchase: YesCondition: NewSold by: spreetail

  • by soundxlr8r
    Apr 13, 2016

    Gives you that extra punch

    Allows you to run a little smaller power cables to your amps. Small size with a lot of stored power. Study the wiring diagram carefully and identified the in and out on both the + & - terminals. Do it wrong and you will hurt the Led lights read out. The capacitor still will work but with no readout or light show which is pretty neat and impressive. It does draw a pretty big charge when you hook the power to it for the first time and if you unhook battery you need to turn on something to draw the power back out of it before working on the wiring to prevent being shocked by it because it acts like a battery. Dan

    Verified purchase: YesCondition: NewSold by: spreetail

  • by damofeer_0
    Jun 02, 2017

    Works amazingly great price and very satisfied

    I hooked it up in twenty minutes easy install no more headlights dimming from bass have it hooked to a 4000 watt amp for sub and a thousand watt amp for highs

    Verified purchase: YesCondition: NewSold by: spreetail

  • by rickl9783
    Aug 09, 2021

    Blew in only a few moments

    Hooked up following instructions exactly as I have done this with similar products many times before and it was only on for few moments before making a loud pop and blowing filling the car with smoke and melting my wires

    Verified purchase: YesCondition: NewSold by: www-sonicelectronix-com

  • by dapper-gentlemens-fashion
    Oct 08, 2016

    Boss? Yup :)

    This is one of the first things that I have ever bought from Boss, and it really blew away my expectations! Functions well with no issues and it looks great doing it!

    Verified purchase: YesCondition: NewSold by: spreetail

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