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Fulbat FP4-3.5, a battery for UPS units | baterias.online

Fulbat FP4-3.5 · 3.5Ah 4V · backup battery for UPS, alarm panels and telecom racks

Fulbat

UPS and standby systems? Try the Fulbat FP4-3.5. Terminals of the T1 type.

  • Voltage: 4V
  • Capacity, 20-hour rate (C20): 3.5Ah
  • Dimensions (L × W × H): 90 × 34 × 65 mm
  • Battery technology: AGM
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Quick answer: One code, one battery: Fulbat FP4-3.5, 3.5Ah 4V, for UPS and standby systems. Weight is 0.45 kg, worth knowing before you lift it out of the tray.

4VVoltage
3.5AhCapacity, 20-hour rate (C20)
0.45 kgWeight

Why choose the Fulbat FP4-3.5

Made for UPS and standby systems, the Fulbat FP4-3.5 waits on float for years and takes over in an instant. Spade terminals come in different widths, so check them closely. The Fulbat FP4-3.5 page at baterias.online lists the figures to check before the swap.

For UPS and standby systems, 3.5Ah is on the compact side. Weight comes in at 0.45 kg, on the light side for its class.

Specifications table

MakeFulbat
ReferenceFP4-3.5
Product lineFULBAT FP General Purpose
SuitsUPS and standby systems
Voltage4V
Capacity, 20-hour rate (C20)3.5Ah
Battery technologyAGM
Dimensions (L × W × H)90 × 34 × 65 mm
Weight0.45 kg
Terminal polaritypositive on the left-hand side
TerminalsT1

Using it day to day: practical tips

Home alarm panels beep at night when their batteries weaken. Ventilate battery cabinets properly. Mixing old and new batteries in one UPS cuts runtime and harms the new blocks.

About the technology: AGM

Glass-mat batteries are sealed, with small valves that only open if pressure builds up. Leisure vehicles choose AGM when the battery lives under a seat. Old-fashioned chargers without automatic cut-off are a poor match for glass-mat batteries.

Quick compatibility checklist

  • ✓ Built with AGM technology: if your vehicle or system was set up for another chemistry, check the charging settings first.
  • ✓ Make room for 90 × 34 × 65 mm, including clearance above the posts.
  • ✓ Plus post on this one: positive on the left-hand side. Make sure the cable lengths reach.

Common questions about the Fulbat FP4-3.5

Can one person lift this battery?

It weighs 0.45 kg. Use the handle if fitted and lift with your legs, not your back.

Do size and polarity both match my current battery?

Check two things together: size (90 × 34 × 65 mm) and orientation (positive on the left-hand side). Both must match.

How should I store the Fulbat FP4-3.5 if I don't fit it immediately?

Yes, gradually. Lead batteries lose a little charge each month, lithium much less. A quick charge before use is a good idea.

Dimensions and weight of this model?

Overall it is 90 × 34 × 65 mm (L × W × H) and tips the scales at 0.45 kg. Weight is a good clue to how much active material is inside.

More options

Got the old battery's label in front of you? Compare it once more, then order online at baterias.online. If the terminal side or size differ, browse the alternatives before ordering.

  • Brand
  • Reference
    BON-FULBAT-FP4-3.5
  • MPN
    FP4-3.5

  • Brand
    Fulbat
  • Product line
    FULBAT FP General Purpose
  • Used for
    UPS and standby systems
  • Battery technology
    AGM
  • Nominal voltage
    4V
  • Capacity, 20-hour rate
    3.5Ah
  • Length
    90 mm
  • Width
    34 mm
  • Height
    65 mm
  • Weight
    0.45 kg
  • Terminal polarity
    Positive on the left-hand side
  • Terminals
    T1

Datasheet FP4-3.5

Datasheet Fulbat FP4-3.5

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