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XS Power  SB500-48

12V Super Capacitor Bank, Group 48, Max Power 4,000W, 500 Farad

Item #56610

Condition:   Brand New

Product Highlights

  • 12V Super Capacitor Bank
  • Group 48
  • Max Power: 4,000W
  • Capacity: 500 Farad

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

$499.99

Reg. Price $529.99  Save $30.00
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  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

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XS Power SB500-48 12V Super Capacitor Bank, Group 48, Max Power 4,000W, 500 Farad


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We are a XS Power authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • 12-Volt Super Capacitor Bank
  • • Owner's Manual
XS Power SB500-48 500F SuperBANK – 4,000W High-Power Energy Boost

Bring instant power support to demanding automotive systems with the XS Power SB500-48 SuperBANK. This Group 48 12V super capacitor bank delivers up to 10,000A and 4,000W, providing rapid energy delivery in a durable, high-performance package.

 


Frequently Asked Questions (FAQ)


  • • Can the SB500-48 really reduce voltage drop in a high-power audio system?
    Yes, real-world feedback is encouraging. One SB500-48 owner reported little to no voltage drop while running around 5,000 watts with two AGM batteries and a 269-amp alternator. The SuperBANK works best as part of a properly matched electrical system rather than by itself.
  • • Why is my voltage still dropping even after adding the SB500-48?
    A SuperBANK cannot compensate for every weak point in the charging system. Forum users specifically noted that PCM-controlled alternators may stop charging periodically, allowing the capacitor bank to discharge. Battery condition, alternator behavior, grounds, and cable connections should all be checked.
  • • Can I use the SB500-48 instead of buying another AGM battery?
    It depends on the application. One user considering the SB500-48 was specifically weighing it against adding one or two Group 48 AGM batteries, showing that this is a common installation question. XS Power recommends using the SuperBANK in parallel with an AGM or lithium battery for a customized power system.
  • • Why does the SuperBANK discharge when my factory alternator stops charging?
    Unlike a battery that stores substantial energy for longer periods, the SB500-48 has 18.2 Wh of energy storage. Forum users pointed out that when a PCM-controlled alternator stops charging, the capacitor bank can discharge along with the rest of the electrical system.
  • • Is the SB500-48 actually suitable for a daily-driver system?
    Yes, it can be. A real forum discussion involved using one with a daily-driven vehicle rather than a competition-only setup, while a customer review reported successful use in a roughly 5,000-watt audio system. The key is matching the SuperBANK with sufficient battery and charging capacity.
  • • Why doesn't the SB500-48 come with a digital voltage display?
    The SB500-48 is listed without a digital monitor. If you want to keep an eye on system voltage, you'll need to use a separate calibrated meter or vehicle/audio-system voltage monitor.
  • • Will the Group 48 size guarantee that it fits my battery tray?
    Not necessarily. Although it follows the Group 48 format, the SB500-48 measures approximately 10.94 × 7.48 × 6.93 inches and weighs about 11 pounds. Always compare those measurements with your actual tray and cable clearance before installation.
  • • Why does the SB500-48 need ventilation if I'm cycling it heavily?
    Repeated high-current cycling can make thermal management important. XS Power recommends free-air mounting or forced ventilation for SuperBANKs that experience significant cycling, while also advising protection from water spray and corrosive environments.
  • • What happens if I connect the SB500-48 backward?
    Do not reverse the polarity. XS Power specifically warns against reversed connections and requires the SuperBANK to be properly discharged before installation or removal. A calibrated meter should be used to verify that no dangerous residual voltage remains before handling the terminals.
  • • Are customers actually happy with the SB500-48?
    The available feedback is generally positive, although the number of detailed reviews is limited. Down4Sound currently shows two five-star reviews, including one owner who reported little to no voltage drop in a 5,000-watt setup. Other retailer feedback is sparse, so individual results should not be treated as a guarantee for every vehicle.

SPECIFICATIONS


  • Capacitance : 500 Farad
  • Digital Monitor : No

FEATURES


Features:
  • TYPE: 12V Super Capacitor Bank, Group 48
  • Max Amps: 10000A
  • Max Power: 4000 Watt
  • Farads: 500F
  • Operating Voltage: 12.0V - 16.2V
  • Operating Temperature: -40 - 150
  • Capacitance: 500F
  • Watt Hours: 18.2Wh
  • Max Amps: 10,000A
  • Weight Lbs. : 11
  • Weight Kgs. : 4.98
  • Length : 10.94 in
  • Height : 7.48 in
  • Width : 6.93 in
  • UPC: 692209052777
  • Weight: 15
  • Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.

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