The SB500-49 is an XS Power ultracapacitor bank. The specifications below come directly from XS Power's June 2026 distributor data. Verify voltage, group size, polarity, dimensions, and application requirements before ordering.This Listing Includes: (1) XS Power SB500-49 500F 16.2V SuperBank UltracapacitorSpecifications Battery Type Ultracapacitor BCI Group Size Group 49 Volts 16.2 Included Hardware M6 Hardware Included Warranty 5 Year — view warranty (PDF) Instructions Download instructions (PDF) Farads 500 Max Power Rating 4000 Watts Operating Temperature -40F-149F Watt Hours (Wh) 18.2Wh Length (Inches) 13.9 Width (Inches) 6.93 Height (Inches) 7.48 Weight (lbs) 11 Weight (kg) 4.98 Available from JS Alternators.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.
