XS Power SB150-30Q 150F 12V SuperBank Ultracapacitor
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Most products are covered by the manufacturer's warranty against defects. Damage from over-powering or improper installation isn't covered — we'll help coordinate any valid claim.
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Designed around the Group 30L battery envelope, the XS Power SB150-30Q 12V SuperBank provides a direct-fit ultracapacitor solution for vehicles that use this less-common but widely available group size. With 150 farads of car audio capacitor capacity, it provides meaningful transient buffering that helps amplifiers maintain voltage stability during heavy bass hits, reducing headlight dimming and preserving sound quality under load. The Group 30L form factor makes the SB150-30Q a unique and valuable option for builds where other SuperBank sizes would require a bracket or custom tray.
The XS Power SB150-30Q operates as a high current capacitor bank rather than a battery, meaning it focuses entirely on rapid charge and discharge cycles rather than sustained energy delivery. This makes it the ideal partner for a properly sized AGM battery in applications where the load profile is dominated by short, intense amplifier transients rather than long, sustained draws. A smart, targeted upgrade for the right vehicle platform.
Authorized XS Power dealer at JS Ultimate Sounds. Free shipping on orders $99+.
PROP 65 WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. Wash hands after handling.
For more information, visit www.P65Warnings.ca.gov
