*Included: Enclosure, Batteries, Charge Controller, Mounting Hardware, Cabling.

48V 50Ah Batt, 48V 600W (UPS-STL48-50-600)


Item# UPS-STL48-50-600

The UPSPro® STL48-600W series outdoor enclosures are designed for applications that require a flexible backup power source in order to maintain uninterrupted service to customers. The enclosure is powered from 120/240VAC. It is also solar ready so a solar panel can be added as an alternate power source or to extend backup time. Features include 12V/24V/48VDC configurable output, an advanced 60A MPPT battery charge controller to protect against overcharging or over-discharging of the valve regulated sealed lead acid AGM batteries. Enclosures have multiple ports for CAT5 cable, antenna cables/connectors or other cabling. They are vented to prevent a residual buildup of hydrogen gas.

There is some space inside the enclosures for customer electronics such as controllers, wireless AP or CPE cards, sensors, inverters, etc. There is a 1U rack mount feature in the enclosure for rack mounting. Equipment runs on battery power which isolates it from power line surges which is a main cause of outdoor equipment failure.

A typical high power wireless access point with average power consumption of 8W will run 40 hours on a 52Ah battery at room temperature or 28 hours at -20 deg C.



  • Configurable as 12V, 24V or 48VDC System
  • Weatherproof, UV resistant, outdoor enclosures
  • Powered from AC mains power and/or Solar
  • Interior space for customer electronics
  • Wall or Pole Mounting
  • Isolates Customer Equipment from Power Line Surges
  • High Quality AGM Sealed Lead Acid Batteries
  • Advanced battery charge controller protects against overcharge and over discharge


  • Wireless Base Stations and Clients
  • Surveillance Cameras
  • Wireless Bridge and Repeaters
  • Remote Sensors
  • Mission critical outdoor power
  • Backup Power Systems


Spec Sheet PDF

Battery Voltage (DC)

12V / 24V / 48V 

Input Voltage (AC)

120/240VAC, 50/60Hz, 5A Max.

Capacities (Amp Hr) @ 12V

12V 200Ah, 24V 100Ah, 48V 50Ah

Avail Storage Capacity (Watt Hr)


Max Output Power


Suggested Maximum Load


Maximum Instantaneous Load

20A 500msec

Battery Type

Valve Regulated Sealed Lead Acid / Absorbent Glass Mat (AGM)

Battery Life

5 Years

Battery Cable Fuse

6 x 32mm Ceramic 30A 250V

Controller Type

60A MPPT Solar Controller with Status Display and 20A Load with on/off switch

Maximum Solar Panel Size

800W @12V Battery, 1600W @ 24V Battery, 3200W @ 48V Battery

Controller Display Status

Battery Voltage, Charging Voltage, Charging Current, Load Current, Temperature

Overcharge Protection

14.4V @ 12V Battery, 28.8V @ 24V Battery, 57.6V @ 48V Battery

Over-discharge protection

11V @ 12V Battery, 22V @ 24V Battery, 44V @ 48V Battery

Over-discharge recovery voltage

12.6V @ 12V Battery, 25.2V @ 24V Battery, 50.4 @ 48V Battery

Controller Self Consumption


Enclosure Type

Powder Coated Steel – Pole/Wall Mount 

Enclosure External Size

24.1 x 24.1 x 17.5" (612.5 x 612.5 x 445.6mm)

Enclosure Internal Size

23.9 x 23.9 x 16.1" (608 x 608 x 409.5mm)

Operating Temperature

-30°C to + 60°C (-22°F to 140°F)

System Weight (without batteries)

75lb (34kg)

Battery Weight (each)

4 x 37lb (17kg)


Individual components used have CE Certifications. Batteries have CE and UL.


3 Years 

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