TekTone BA501 Replacement Battery for SF501 Water-Resistant Pendant Call Transmitter, 3V Lithium

Keep your SF501 water-resistant pendant call transmitters ready with the TekTone BA501 replacement battery — a simple, reliable way to maintain uninterrupted security and monitoring coverage. This TekTone battery (BA501) is a 3V lithium cell engineered for stable voltage output and long shelf life, ensuring your pendant transmitters perform consistently in critical moments. Compatible with SF501 pendant call transmitters, the BA501 reduces unexpected failures and minimizes maintenance visits by delivering dependable, long-lasting power.

Designed for professional environments such as healthcare facilities, assisted living, and commercial security installations, this replacement battery supports continuous operation of pendant-based emergency call and surveillance systems. Installation is quick and tool-light, so technicians and facilities staff can swap cells and return devices to service fast. Trust TekTone's OEM quality to protect your monitoring network and maintain compliance with service standards. Keep pendant transmitters operational and avoid gaps in coverage — order BA501 replacement batteries today to support reliable security, surveillance, and patient monitoring.

• Restores reliable, long-lasting power to SF501 water-resistant pendant transmitters, reducing downtime and service calls
• OEM-quality TekTone battery (BA501) designed for easy, drop-in replacement to keep security and monitoring devices online
• 3V lithium chemistry delivers stable voltage and extended shelf life for consistent pendant performance
• Compact, sealed cell ideal for water-resistant pendant call transmitters used in healthcare, security, and surveillance environments
• Minimizes false alarms and missed calls by maintaining dependable transmitter operation
• Simple inventory solution for facilities managers and installers supporting TekTone SF501 systems