XS Power SB630-51R 630F 12V SuperBank Ultracapacitor
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Built around the Group 51R footprint, the XS Power SB630-51R 12V SuperBank packs a full 630 farads of ultracapacitor capacity into a size that fits neatly in tight engine bays and compact front-battery locations. That massive farad rating means the SB630-51R can deliver enormous instantaneous current on demand, serving as a powerful voltage stabilizer that keeps your system voltage stable when amplifiers slam into a low-frequency peak. Front-stage power, secondary support, or a clean replacement in an existing Group 51R slot — this unit handles all three scenarios.
The XS Power SB630-51R is an elite-grade SPL capacitor bank that bridges the gap between a traditional power cap and a full battery replacement. Its high current capacitor cells charge and discharge with minimal internal resistance, which translates directly to crisper transient response from your subwoofers and a measurable improvement in system dynamics compared to a battery alone.
Specifications
| Battery Type | Ultracapacitor |
| BCI Group Size | Group 51R |
| Volts | 14.25 |
| Included Hardware | M6 Hardware Included |
| Warranty | 5 Year — view warranty (PDF) |
| Instructions | Download instructions (PDF) |
| Farads | 630 |
| Max Power Rating | 5000 Watts |
| Operating Temperature | -40F-149F |
| Watt Hours (Wh) | 17.75Wh |
| Length (Inches) | 9.04 |
| Width (Inches) | 5.43 |
| Height (Inches) | 8.19 |
| Weight (lbs) | 9.5 |
| Weight (kg) | 4.31 |
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
