The Power Experts

FIAMM FAT Battery Series

FIAMM FAT SeriesFIAMM FAT Battery series of valve regulated batteries has been designed for high reliability and safety for front terminal telecom installations. The FAT battery series’s front terminal design is ideal for installation in 19” and 23” cabinets. The front terminal design also allows easy access for maintenance, reduces the installation footprint and maximizes the energy density.

FAT uses proven VRLA technology with 99% internal recombination efficiency, is non-spillable and maintenance-free, therefore requires no topping up of electrolyte during its float -life. The FAT series is compliant with the highest recognized international standards, non-hazardous for air/sea/rail/road transportation and is 100% recyclable. FAT batteries have a self-discharge rate less than 2% per month, guaranteeing long shelf-life.

FIAMM FAT Series uses AGM technology. The electrolyte is absorbed in fiberglass separators with 99% internal gas recombination efficiency. Blocs  are non-spillable and maintenance-free.  They do not require topping up electrolyte during its life and its low discharge allows 6 months of shelf life.

FIAMM FAT Battery Series Battery Features

  • Special lead calcium tin alloy grid, designed to resist corrosion and provide short recharge time
  • VRLA AGM technology using low resistance high microporous fiberglass separators
  • Leak resistant post seal, threaded female M6/M8 terminals with high conductivity and maximum torque resistance
  • One-way safety relief valves allow gas to escape and prevent the ingress of oxygen and flame arrestors prevent sparks or flames entering the battery
  • Flame retardant ABS plastic to IEC 707 FV0 and UL94 FV0 (LOI greater than 28%)
  • Installation in any orientation (excluding permanently inverted)

FAT Series Battery Specifications

Float Voltage: 2.27 V/cell at 68°F
Nominal Voltage: 12V
Boost Voltage: 2.40 V/cell
Float Voltage Compensation with Temperature: -1.39 mV/cell/°F
Self-Discharge at 68°F: <2%/month

Type Capacity (Ah)
8 H to 1.75 VPC at 77°F
Dimensions (in)
(L x W x H)
Weight (lbs) Terminal Type
12FAT60 60 11.02 x 4.10 x 10.23 41 Female M6
12FAT100/19 100 15.55 x 4.25 x 10.83 75 Female M8
12FAT100 100 21.97 x 4.96 x 9.06 95 Female M8
12FAT145 145 16.55 x 6.81 x 10.03 120 Female M8
12FAT155 155 21.97 x 4.96 x 12.64 129 Female M8
12FAT180 180 21.97 x 4.96 x 12.64 134 Female M8

For more in-depth specifications, see the data sheet.

FAT Series Standards

  • Telcordia (Bellcore) SR-4228
  • Telcordia (Bellcore) TR-NWT-001200
  • Telcordia (Bellcore) TR-NWT-000909
  • UL Recognized
  • UL 94 Class V-0 – flame retardant
  • IEC 60896 Part 21 – VRLA methods of testing
  • IEC 60896 Part 22 – VRLA requirements
  • Eurobat “Long Life” – 12 years and longer
  • BS 6334 method FV0 – flame retardant
For more information about FIAMM Batteries,
call 800-876-9373 or email sales@power-solutions.com.