Xantrex Battery Temperature Sensor (BTS) f/Freedom 458 Series

Meet the Xantrex Battery Temperature Sensor (BTS) for Freedom 458 Series—the smart accessory that keeps your inverter/charger performing at its best by temperature-compensated charging. Designed as a replacement BTS, it ensures your system adapts to ambient conditions for reliable, full-charge results.

The BTS features a 15-foot (4.6 m) cable that lets you place the sensor exactly where it matters—on a battery terminal post in a bank or along the side of a battery. This flexible positioning helps you achieve accurate temperature readings in a variety of installation layouts.

Key benefits

• Temperature compensated charging—the sensor feeds real-time temperature data to your charger, automatically adjusting voltage to help ensure a full, efficient charge.
• Long reach—a 15 ft (4.6 m) communications cable supports versatile installation options.
• Easy replacement—designed specifically as a BTS replacement for the Freedom 458 Series inverter/charger.
• Simple mounting—mounts on a battery terminal post or the side of a battery for straightforward setup.

How it works: The BTS continuously monitors battery temperature and communicates with the charger to apply precise charging voltages that match ambient conditions. This helps maximize capacity, extend battery life, and maintain dependable performance across environments.

Safety notice: This product can expose you to chemicals including Diisononyl Phthalate (DINP) which is known to the State of California to cause cancer, and Di-isodecyl Phthalate (DIDP) which is known to the State of California to cause reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications

• Replacement Battery Temperature Sensor (BTS) for Freedom 458 Series
• Cable length: 15 ft (4.6 m)
• Mounting: On a terminal post of a battery bank or on the side of a battery
• Compatibility: Freedom 458 Series inverter/charger