Generator Batteries

UPS Battery Center is a specialized supplier of replacement batteries for generators, compatible with brands including Firman, Champion, WEN, Generac, Westinghouse, DuroMax, Harbor Freight, and more. Search by your generator's make and model to find a compatible replacement battery designed for proper fit and reliable performance.

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305 products found

  1. Firman 357713553 Generator Replacement Battery
    $54.99
  2. Firman 363753007 12V 9Ah Compatible Replacement Battery
    $36.99
  3. P03632 Firman 3650 Watt Portable Generator Compatible Replacement Battery
    $36.99
  4. W03382 Firman 3650 Watt Generator Replacement Battery
    $24.99
  5. W03383 Firman 3650W Inverter Portable Generator Replacement Battery
    $24.99
  6. W03383F Firman 3650W Dual Fuel Generator Replacement Battery
    $24.99
  7. Firman 3650 Watt W03385 Inverter Generator Compatible Replacement Battery
    $36.99
  8. W03386 Firman 3650W Generator Replacement Battery
    $24.99
  9. W03386F Firman 3650W Generator Replacement Battery
    $24.99
  10. Firman 399755685 12V 35Ah Compatible Replacement Battery
    $99.99
  11. WH03242 Firman 4000W Generator Replacement Battery
    $36.99
  12. WH03242F Firman 4000W Dual Fuel Portable Generator Compatible Replacement Battery
    $36.99
  13. Firman 4000 Watt WH03348 Dual Fuel Generator Compatible Replacement Battery
    $36.99
  14. L03391 Firman 4100 Watt Generator Replacement Battery
    $36.99
  15. Firman 4125 Watt WH03342 Dual Fuel Inverter Generator Compatible Replacement Battery
    $36.99
  16. WH03344 Firman 4125W Dual Fuel Generator Replacement Battery
    $24.99
  17. WH03562OF Firman 4400W Dual Fuel Inverter Generator Compatible Replacement Battery
    $36.99
  18. W03661OF Firman 4500W Inverter Portable Generator Compatible Replacement Battery
    $36.99
  19. W03663OF Firman 4500W Open Frame Portable Generator Compatible Replacement Battery
    $36.99
  20. WH03662OF Firman 4500W Dual Fuel Inverter Generator Compatible Replacement Battery
    $36.99
  21. H03651 Firman 4550 Watt Generator Replacement Battery
    $36.99
  22. H03652 Firman 4550 Watt Generator Replacement Battery
    $24.99
  23. P03603 Firman 4550 Watt Generator Replacement Battery
    $36.99
  24. P03608 Firman 4550 Watt Generator Replacement Battery
    $36.99

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