XS Power Batteries
About XS Power Batteries
Founded in 2005 and headquartered in Knoxville, Tennessee, XS Power Batteries has spent two decades engineering power storage solutions that refuse to compromise. What started as a relentless pursuit of high-output energy technology has grown into one of the most recognized names in performance batteries — trusted by daily drivers, car audio competitors, racers, and land speed record holders alike.
At the heart of the XS Power lineup is a commitment to using only the finest materials. XS Power AGM batteries are constructed using 99.99% virgin lead — not recycled — which translates directly into lower internal resistance, faster recharge rates, and more consistent power delivery under load. Their batteries span an impressive range of chemistries and form factors, from the legendary D-Series and S-Series AGM units to cutting-edge Lithium Titanate Oxide (LTO) cells and modular TITAN8 lithium banks.
For automotive applications, XS Power's vehicle batteries cover everything from direct-fit replacements for stock battery trays to custom-sized 14-volt and 16-volt units engineered for maximum cranking power and stable voltage under heavy electrical loads. Whether you're building a competition car audio system or simply want a more dependable battery in your daily driver, XS Power offers a solution sized and rated for the job.
Beyond raw power storage, XS Power also develops its own line of battery chargers — including the IntelliCharger series — designed specifically to maintain and replenish AGM and lithium batteries with high-frequency, microprocessor-controlled charging. Pairing an XS Power battery with a matched XS Power charger ensures the battery is conditioned correctly, extending service life and preserving peak performance over thousands of charge cycles.
One of XS Power's most important differentiators is its rigorous in-house testing culture. The brand maintains its own testing lab and works with third-party accredited facilities to verify every performance rating it publishes. This commitment to verified data — rather than marketing claims — has earned XS Power a loyal following among enthusiasts who know that real-world numbers matter more than spec-sheet promises.
From sealed AGM designs that can sit uncharged for months without losing viability, to ultracapacitor-based SuperBANK solutions that eliminate voltage sag in high-demand electrical systems, XS Power continues to expand the boundaries of what automotive power storage can do.