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XS Power  SB630-34

12V Super Capacitor Bank, Group 34 Max Power 4000W, 630 Farad

Item #56625

Condition:   Brand New

Product Highlights

  • 12V Super Capacitor Bank
  • Group 34
  • Max Power: 4000W
  • Capacity: 630 Farad

  Free 2-Years Warranty Included!
60 DAYS Returns Accepted.
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$499.99

Reg. Price $529.99  Save $30.00
60 DAYS Returns Accepted.
FREE Lifetime Tech Support.
FREE Shipping.
60 DAYS Price change protection.

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XS Power SB630-34 12V Super Capacitor Bank, Group 34 Max Power 4000W, 630 Farad


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What's Inside?
  • • 12V Battery
  • • Owner's Manual
SB630-34 630F SuperBANK – 15,500A High-Output Power

The XS Power SB630-34 12V Super Capacitor Bank is built for high-demand electrical systems that need substantial power delivery in a compact Group 34 format. With 630F capacitance, up to 15,500A, and 4,000W of maximum power, it provides a powerful energy reserve for performance applications.

 


Frequently Asked Questions (FAQ)


  • • Why does the SB630-34 still need a proper battery in the vehicle?
    The SB630-34 is a supercapacitor bank, not a conventional battery designed to store large amounts of energy for long periods. Users running high-power audio systems generally pair it with a strong battery so the capacitor can handle short, demanding current bursts.
  • • Can the SB630-34 help when an amplifier causes sudden voltage swings?
    Yes, this is one of the situations where owners report a noticeable improvement. One user with a 250-amp alternator and upgraded wiring said his system previously dropped to about 12V, while the SB630-34 reduced the voltage drop to roughly 0.2V at idle and full volume.
  • • Is a 630-farad capacitor overkill for a normal daily-driver stereo?
    For a modest audio setup, it may be more capacity than necessary. Forum users discussing systems around 3,000–4,000W RMS have questioned whether adding a large supercapacitor is necessary when the vehicle already has a capable battery and charging system.
  • • Could poor grounding make the SB630-34 seem ineffective?
    Yes. Real-world car-audio discussions emphasize that inadequate or poorly routed grounds can contribute to voltage instability even when a supercapacitor is installed. One forum discussion involving an SB630 specifically recommended improving the ground path close to the amplifiers rather than relying on a problematic distribution-ground arrangement.
  • • Will the SB630-34 completely fix voltage problems caused by an undersized alternator?
    Not necessarily. The capacitor can provide rapid current for short bursts, but it cannot replace the continuous power supplied by the charging system. Users planning high-output systems have specifically raised concerns about whether a factory alternator can keep up even with an SB630-34 installed.
  • • Are the SB630-34 terminals compatible with standard battery cables?
    The unit uses M6 screw terminals, so installers need to make sure their cable lugs and hardware are appropriate for those connections. This has been a specific buyer question, with the product listing confirming the M6 terminal size.
  • • Does the SB630-34 take up more space than expected?
    It is not a tiny capacitor despite being relatively lightweight for its capability. The listed dimensions are approximately 10.24 × 7.20 × 6.75 inches, so checking available mounting space before installation can prevent clearance problems.
  • • Can the SB630-34 handle repeated bass hits without behaving like a traditional battery?
    Its design is intended for rapid delivery and recovery of energy, making it particularly useful for repeated short-duration current demands. XS Power describes the SuperBANK as rapidly recharging after supplying surge power, while owners have reported improved voltage stability during demanding music playback.
  • • Is the SB630-34 difficult to install safely?
    The physical connection is straightforward, but the stored electrical energy makes safe handling important. XS Power's product information warns users to verify that the SuperBANK is fully discharged with a calibrated meter before touching its power terminals.
  • • Are customers reporting widespread SB630-34 failures?
    I found relatively little direct negative customer feedback for this exact model. Available customer reviews include reports of improved voltage performance and positive build/quality impressions, while forum discussions tend to focus more on whether the vehicle's alternator, battery, and wiring are adequate rather than on widespread SB630-34 failures.

SPECIFICATIONS


  • Capacitance : 630 Farad
  • Digital Monitor : No

FEATURES


Features:
  • Operating Voltage: 12.0V - 14.25V
  • Operating Temperature: -40 - 150
  • Max Power : 4000W
  • Max Amps : 15,500A
  • Watt Hours : 16Wh
  • Farads : 630F
  • CA(5s) : 660A
  • CCA(5s) : 580A
  • ESR(m0hms) : 0.001
  • Weight Lbs. : 9.5
  • Weight Kgs. : 4.31
  • Length : 10.24 in
  • Height : 7.20 in
  • Width : 6.75 in
  • UPC: 692209054023
  • 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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Write a review!
  • If you have a power hungry amp like I do this will do the trick! I have a 250 amp alternator with the big 3 installed hoping it would supply the power I need, Unfortunately it wasn’t enough. My volts would still drop down to 12v. So I decided to pick up this super capacitor and now my volts will not drop more then .2v at idle at full volume. I’m extremely happy with the product a little pricey but worth it.

    Andrew Badtke
    4/23/2021

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