The FG batteries have been especially developed to enhance economy of operation, reliability and energy output. The values reached in these areas position the FG batteries among the very best presently available on the market. They represent the ideal solution for all applications in the field of environmental measuring stations. For Gealog systems only batteries with voltage 12 V are used. Various capacities from 2.0 Ah up to 65 Ah give the possibility to adapt the battery perfectly  to the specific requirements.

Main features

• Total absence of maintenance
  The gases which are generated by the electrolysis of water, during the period of overcharge, are completely recombined in the elements, thereby eliminating the need for the periodic addition of water.
• Sealed construction
  The ‘sealed' construction permits a safe use in any position without any leakage of electrolyte and/or reduction of electric capacity.
• High energy density
  The use of highly porous glass fibre separators permits the maximum possible energy density per unit of volume and/or weight.
• Recovery after over discharge
  The glass fibre separators, combined with special electrolyte additives, allow the batteries to continue to accept charging current, even in cases of over discharge, or after long storage periods.
• Low self-discharge
  The perfect sealing of the battery case and the use of pure Pb-Ca alloy grids keep the self-discharge values below 3% of battery capacity per month.
• Long life
  Both the positive and negative plates have been optimised, to obtain excellent results in either cyclic or stand-by use.
• Wide ranging operating temperature
  The batteries are specially designed to operate within a wide temperature range.
• International certifications
  FG batteries are tested and certified according to UL 924, section 38. The battery types commonly used in security applications are further certified by the VdS, the German insurance underwriters association. The VdS certification is one of the few product certificates that tests the effective battery capacity. Moreover, FG batteries meet the requirements of provision A 67 of the IATA Dangerous Goods Regulation and can therefore be transported by aircraft.