Sherlotronics 3A Lithium Battery Backup Power-Supply

Sherlotronics 3A Lithium Battery Backup Power-Supply

The Sherlotronics 3A Lithium Battery Backup Power-Supply is a reliable 12VDC backup power unit and charger designed for security, CCTV, access control, and low-voltage backup power applications. It is ideal for keeping essential equipment powered during mains power interruptions, helping maintain system uptime for alarms, cameras, door controllers, and magnetic locks.

Designed for lithium battery backup applications, this unit provides microprocessor-controlled charging for stable and efficient battery management. Its adjustable 13V to 14.4V output allows installers to fine-tune the voltage according to the system requirements, while the 3A DC / 35W maximum output provides dependable power for compatible low-voltage security devices.

For protection and reliability, the unit includes low-battery switch-off at 10V DC, overvoltage protection above 15V, resettable fuse protection on the DC output, and fuse protection on the AC input. It also includes an AC fail output, allowing connected systems to detect mains failure conditions.

Housed in a durable ABS plastic enclosure, the Sherlotronics 3A Lithium Battery Backup Power-Supply is a practical solution for residential, commercial, and light-industrial security installations that require dependable lithium-compatible backup power.

Key Features

• 12VDC lithium battery backup power-supply and charger

• Designed for lithium battery backup applications

• Maximum current output: 3A DC / 35W

• Adjustable output voltage: 13V to 14.4V

• Microprocessor-controlled charging output

• Current-limited charging

• Low-battery switch-off at 10V DC

• Overvoltage protection above 15V

• Resettable fuse protection on DC output

• Fuse protection on AC input

• AC fail output: 140mA positive switching

• Relay contact rating: 10A

• Input voltage range: 110V–230V AC, 50Hz

• Operating temperature: -3°C to 60°C

• Durable ABS plastic enclosure

• Dimensions: 200 × 180 × 87mm

• Gross weight: approximately 0.895kg

• Battery not included

Ideal For

• Alarm panel battery backup

• CCTV battery backup

• Access control systems

• Door controllers

• Magnetic locks

• Emergency lighting applications

• Isolated backup power installations

• Residential and commercial security systems

Why Choose This Power Supply?

The Sherlotronics 3A Lithium Battery Backup Power-Supply is a dependable choice for installers and users who need stable lithium-compatible backup power for critical security equipment. With intelligent charging, built-in protection features, AC fail signalling, and a durable enclosure, it helps keep alarms, CCTV, and access control systems running when power reliability matters most.

***Does not Include Battery***