
XS Power SB630-34 630F 12V SuperBank Ultracapacitor
Many in-stock orders ship within 1-2 business days, but timing varies by item. Custom, built-to-order, oversized, special-order and supplier-direct products may need extra processing time. Free shipping applies to qualifying orders over $99 in the contiguous US. Approved returns may be subject to a restocking fee.
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.
Tell us your vehicle, subwoofers and electrical setup and our team will help you match the right gear. Reach out before you buy.
The XS Power SB630-34 12V SuperBank ultracapacitor slots directly into a standard Group 34 battery space and delivers an enormous 630 farads of instantaneous energy storage. Unlike a traditional battery, this high current capacitor releases and absorbs power virtually instantly, acting as a rock-solid voltage stabilizer that keeps rail voltage from sagging when your amplifiers hit a heavy transient. The result is tighter, louder bass and dramatically reduced headlight dimming, making it equally valuable for daily-driver big stereos and dedicated SPL vehicles.
As a drop-in farad capacitor bank in the familiar Group 34 footprint, the XS Power SB630-34 pairs naturally with XS Power AGM or lithium batteries to form a complete power storage system. The SPL capacitor bank architecture is designed to outlast conventional film caps, giving competitors and enthusiasts a more reliable solution without the maintenance headaches of traditional power cap designs.
Specifications
| Type | 12-Volt Super Capacitor Bank |
| Group Size | Group 34 |
| Max Power | 5,000 Watts |
| Capacitance | 630 Farads |
| Weight | Ultra Lightweight |
| Terminal Hardware | M6 Terminal Hardware Included |
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


