🎉 Up to 70% Off Selected ItemsShop Sale

Home Shop Cart Account

Lithium Batteries

Store

DIY Ultracapacitor Modules

Subscribe to our newsletter for exclusive offers, new arrivals, and style inspiration.

Shop

All Products
New Arrivals
Sale

Company

Shipping Info
FAQ
Contact Us

About

About Us
Returns
Privacy

© 2026 4xspower. All rights reserved.

DIY Ultracapacitor Modules | 4xspower

NEW

Ioxus UC-31 B-Stock

$99.99

-65%NEW

UC-31 40Ah Combo With Connectors

$689.99

$241.50

-65%NEW

Ioxus UC-31

$399.99

$140.00

-65%NEW

UC-31 45Ah Combo - No Connectors

$879.99

$308.00

-65%NEW

UC-31 45Ah Combo With Bus Connectors

$929.99

$325.50