6 Volt - 12 Amp Hour UPS Replacement Battery

All batteries are not created equal. Gruber manufactured the 58AGPS-6-12-F specifically for electronic equipment and offers one of the longest shelf lives assuring your equipment long life and reliability.

Gruber 58AGPS-6-12-F2:
  • Voltage: 6V
  • Amp/H: 12AH
  • Terminal: F2
Gruber 58AGPS-6-12-F2 Replacement Battery
Gruber 58AGPS-6-12-F2 - Click to enlarge

Please call 1-866-722-5776 to order


  • Lead alloy with low calcium minimizes gassing and extends the life of the grid.
  • Through unique active material recipes, plates after undergoing curing and tank formation provide outstanding energy density and ensure the quality of the battery.
  • Using brass coated lead alloy battery terminals minimizes the impedance of connecting cells inside.
  • The case made of ABS resin and cells kept under internal pressure protects from outer shock or impact.
  • Micro-porous AGM separator completely absorbs and retains electrolyte under the pressured cell design.
  • Electrolyte sufficiently serves for electrochemical reactions in battery but never spills.
  • Battery cases are sealed in epoxy and cells are covered with vents to avoid cell contamination with the atmosphere and serve for internal oxygen reaction.
  • With very little gas evolution, the water loss is minimized and service life is extended. Excess pressure and gas will be released which ensures safety.
  • Vent design is certificated by UL.
Battery Type6V, 12AH
20 hour rate (0.6A to 5.25V) 12Ah
10 hour rate (1.2A to 5.25V) 12Ah
5 hour rate (2.04A to 5.25V) 10.2Ah
Length151mm (5.94in)
Width 51mm (2.01in)
Height94mm (3.70in)
Total Height100mm (3.94in)
Approx Weight3.97 Lbs.(1.80kg)
CurrentMaximum Discharge Current
for 5 seconds: 180A
Operating Temp Range
Charge0c(32f) to 40c (104f)
Discharge-15c(5f) to 50c (122f)
Storage-15c(5f) to 40c (104f)
Internal ResistanceApprox. 15 mΩ
Container MaterialABS

Compatible UPS Units - Battery Cross Reference

Best: Fortress II - LI 2250, Fortress Rack Mount - LI 1800, Fortress Rack Mount - LI 2250, Fortress LI 1020, Fortress LI 2.25kVA, Fortress LI 950

Compaq: R3000, T1000, T1500, T2000

Data Shield: PC 200, ST 450, ST 550 (1)

Deltec: PR 450, PRA 1000, PRA 2000, PRB 500, PRB 650, PRC 1000, PRC 3000-RM, PRK 450, PRK 600, PRM 1000

Oneac: ONe200D
OptiUPS: 1000E

Parasystems: A1250, A500, A900

Powerware: PW 3110-650

Sola: 450VA, N-250, S32200, S32200R

TrippLite: BC PERS500

Unisys: UP909

UPSonic: LAN 75