BOSS Audio Systems Cap18 - 18 Farad Car Audio Capacitor - Energy Storage, Enhance Bass From Stereo, Warning Reverse Polarity Tone, Voltage Overload Low Battery Voltage Led, For Amplifier and Subwoofer
BOSS Audio Systems Cap18 - 18 Farad Car Audio Capacitor - Energy Storage, Enhance Bass From Stereo, Warning Reverse Polarity Tone, Voltage Overload Low Battery Voltage Led, For Amplifier and Subwoofer
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BOSS Audio Systems Cap18 - 18 Farad Car Audio Capacitor - Energy Storage, Enhance Bass From Stereo, Warning Reverse Polarity Tone, Voltage Overload Low Battery Voltage Led, For Amplifier and Subwoofer

BOSS Audio Systems Cap18 - 18 Farad Car Audio Capacitor - Energy Storage, Enhance Bass From Stereo, Warning Reverse Polarity Tone, Voltage Overload Low Battery Voltage Led, For Amplifier and SubwooferBOSS Audio Systems Cap18 18 Farad Car Audio Capacitor Energy Storage Enhance Bass Stereo Warning Reverse Polarity Tone Voltage Overload Low Battery VBOSS Audio CAP8 8 FARAD LED Digital Voltage Car Audio Power Capacitor
Size:18 Farad

Key item features

  • Bright Display: 3 Digit Super Bright Blue Digital LED Voltage Display
  • Low Resistance: Equivalent Series Resistance of 0.015 Ohm @ 100 Hz / 25C
  • Capacitance Tolerance: Capacitance Tolerance of + / - 10%
  • Audible Alerts: Audible Warning Tone for Reverse Polarity, Voltage Overload, and Low Battery Voltage
  • Accurate Measurement: Voltage Measurement Accurate to + / - 0.1 VDC
  • Compact Size: Dimensions of 11 x 7.8 x 3.2 inches
  • Lightweight: Unit Weight of 6.9 Lbs
  • High Capacity: 18 Farads with digital voltage display
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Current price is Now $78.74
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Sold by Speece Inc.Pro Seller
Fulfilled by Walmart
4.475438596491228 stars out of 5, based on 1710 seller reviews(4.5)
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3.8 out of 5 stars
stars55 ratings31 reviews
How item rating is calculated
  1. 5 stars55% (30)
  2. 4 stars15% (8)
  3. 3 stars5% (3)
  4. 2 stars4% (2)
  5. 1 star22% (12)

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Showing 1-3 of 31 reviews

Feb 10, 2026
Remmy
Item details
Size: 8 Farad
Sold bySpeece Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

My experience

Bought this for my speakers but got told it wasn't need because my speakers aren't as loud lol. I'm a beginner so I just bought this cause I got told . I do have cousins that do use this though for their louder and much bigger speakers. Highly recommend if you have big speakers or subwoofers

Incentivized Review
Helpful?67G5JG0RT4P223852003
Sep 20, 2025
seane
Item details
Size: 18 Farad
Sold bySpeece Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

Great value and excellent quality. It performs very well. It took care of the dimming problem and exceeded my expectations.

Incentivized Review
Helpful?67G5JG0RT4P223852003
Nov 17, 2025
Dwayne
Item details
Size: 8 Farad
Sold bySpeece Inc.Delivered byWalmart
5 out of 5 stars review

Verified Purchase

For the price I definitely hear a difference. Plus I also use it too help constantly see voltage in real time.

Incentivized Review
Helpful?67G5JG0RT4P223852003