This item is out of stock.
Have one to sell?

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

SpeeceInc
(13565)
Registered as a business seller
US $101.22
Approximately£74.53
Condition:
New
Out of stock60 sold
Postage:
Free FedEx Ground or FedEx Home Delivery®.
Located in: Oxnard, California, United States
Delivery:
Estimated between Sat, 26 Jul and Tue, 29 Jul to 94104
Estimated delivery dates - opens in a new window or tab reflect seller's dispatch time, origin postcode, destination postcode and time of order receipt, and will depend on the delivery service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods, and are an estimate only.
Returns:
30 days return. Seller pays for return postage.
Payments:
    Diners Club

Shop with confidence

Direct from Speece
Item sold directly by the brand. 
eBay Money Back Guarantee
Get the item you ordered or your money back. Learn moreeBay Money Back Guarantee - opens new window or tab
Seller assumes all responsibility for this listing.
eBay item number:284216426014
Last updated on 23 Jul, 2025 17:04:02 BSTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging ...
UPC
791489108980

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

Seller business information

I certify that all my selling activities will comply with all EU laws and regulations.
About this seller

SpeeceInc

97.8% positive Feedback85K items sold

Joined Jun 2019
Registered as a business seller
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 ...
See more

Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable postage cost
5.0
Delivery time
5.0
Communication
5.0

Popular categories from this shop

Seller Feedback (14,816)

All ratings
Positive
Neutral
Negative
  • 3***s (554)- Feedback left by buyer.
    Past year
    Verified purchase
    Great and super fast shipping!
  • 7***9 (1641)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Very nice thank you
  • z***a (682)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great
See all Feedback

Product ratings and reviews

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

  • Most favourable 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

  • 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

  • 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

  • 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

  • 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