XS Power US1100-31 1100F 15V SuperBank Ultracapacitor
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The XS Power US1100-31 is a 1,100-farad 15V SuperBank ultracapacitor — not a battery, and that distinction is the point. A battery stores energy chemically and releases it steadily; an ultracapacitor stores it electrostatically and can release it almost instantaneously, which is exactly what a large amplifier demands on a hard bass note.
Instant Current Delivery, No Voltage Sag
Running as a power buffer alongside your existing battery, the US1100-31 absorbs the current spikes that cause headlight dimming and soft, muddy bass. With 700 cold cranking amps and a -40F to 150F operating range, it holds system voltage steady when your amplifiers pull hardest. For SPL builds that outrun the alternator’s ability to respond, a farad capacitor bank is the component that keeps rail voltage where it belongs.
Specifications
| BCI Group Size | Group 31 |
| Volts | 15 |
| Included Hardware | M6 Hardware Included |
| Warranty | 1 Year — view warranty (PDF) |
| Instructions | Download instructions (PDF) |
| Farads | 1100 |
| Operating Temperature | -40F – 150F |
| CCA | 700 |
| Watt Hours (Wh) | 24Wh |
| Length (Inches) | 12.99 |
| Width (Inches) | 6.81 |
| Height (Inches) | 8.43 |
| Weight (lbs) | 30 |
| Weight (kg) | 13.6 |
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
