URB12550-22NF - LFP, 12.8V55Ah, NON SMART | Ultralife Corporation
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12.8V 52.7Ah (675Wh) LiFePO4 SLA Replacement Battery
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$833.00 EA
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Product Type Rechargeable, Lithium, Battery
Chemistry LiFePO4
Voltage (Nominal) 12.8 V
Capacity (Nominal) 52.7 Ah
Certifications UN 38.3, IEC 62133:2012
Dimensions Length: 228 ± 1mm (8.97in); Width: 138 ± 1mm (5.43in); Height: 208 ± 1mm (8.18in)
Class 9 Yes
Storage Temperature 0 to 40 °C
Terminals/Connector M6 Screw Terminals

Common Applications
  • Oil/Gas Automation and Measurement
  • Oil/Gas Production
  • Automated Gate Operators
  • Automated Range Target Systems
  • Commercial Aerator Systems
  • Commercial Livestock Feeder Systems
  • Industrial Vehicle/Equipment Starter Applications
  • Recreational Vehicle Back-up Power Supply
  • Marine Starter and Auxiliary Power Supply System
  • Solar Regenerated Back-up Power Supply
  • Data Center Back-up Power Supply
  • Scooters / Wheelchairs
  • Robotics
  • Medical Carts
  • UPS Replacement
  • Solar Battery
  • Fire & Emergency Vehicles
  • Heavy Goods Vehicles
  • Speciality Patrol Vehicles
  • Floor Cleaning Machines
  • Automated Ticket Machines


Key Features
  • Li-Ion LFP Benefits Over SLA
  • Can be properly charged using a 2 phase SLA charger
  • IEC62133, 2nd edition compliant
  • Capable of nearly full nameplate capacity delivery vs. 50% typically from SLA
  • >3000 full depth of discharge cycles
  • Uniform voltage during discharge
  • Long duration charge retention (no trickle charging required)
  • Light weight
  • No venting
  • Wider temperature range
  • Screw terminals
  • IEC 62133
  • M8 to M6 adapter option available

Product Description

12.8V 52.7Ah (675Wh) LiFePO4 SLA Replacement Battery

The Ultralife URB12550-22NF is a Lithium Iron Phosphate (LiFePO4) battery which offers significant performance advantage over traditional sealed lead acid (SLA) batteries:

  • Uniform voltage during discharge
  • No need to provide trickle charging to retain battery's charge
  • Significantly lighter weight for the same amount of energy
  • Battery does not become gaseous during use
  • Nominal voltage is maintained over a wider temperature range

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