Fulbat

Fulbat FP12-33 · UPS battery 12V 33Ah

Reference: BOL-FULBAT-FP12-33

Fulbat FP12-33: UPS battery with 12 V and 33 Ah, measuring 195 × 130 × 178 mm, with the positive terminal on the left.

Voltage
12V
Capacity
33Ah
Technology
AGM
Dimensions (L × W × H)
195 × 130 × 178 mm
Polarity
Positive terminal on the left
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The Fulbat FP12-33 at a glance

The Fulbat FP12-33 replaces the original batteries in a UPS. The FP12-33 spends most of its life on float charge, waiting for a power cut.

The FP12-33 belongs to the Fulbat FULBAT FP General Purpose range. See all Fulbat batteries

AGM technology in the FP12-33

Inside, the FP12-33 has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

Fulbat FP12-33 vs FP12-24H and FP12-40: which one to choose?

The real differences between the FP12-33 and the closest Fulbat models:

ModelCapacityDimensions (mm)PositiveWeight
Fulbat FP12-33 (this one)33 Ah195 × 130 × 178left10.5 kg
Fulbat FP12-24H24 Ah164 × 125 × 174–8.45 kg
Fulbat FP12-4040 Ah197 × 165 × 170–12 kg
  • Fulbat FP12-24H: 9 Ah less, a different case (164 × 125 × 174 mm).
  • Fulbat FP12-40: 7 Ah more, a different case (197 × 165 × 170 mm).

Equivalents and alternatives to the Fulbat FP12-33

As the FP12-33 is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

ModelTechnologyCapacityDimensions (mm)
Long WPL36-12AGM36 Ah197 × 131 × 180
Long WXL12135WAGM36 Ah197 × 131 × 180

Fulbat FP12-33 codes and part numbers

Shops, garages and catalogues identify the FP12-33 with these codes:

Commercial referenceFP12-33
Terminal typeT6
Not to be confused withFulbat FP12-2.3 (2.3 Ah)

Before ordering the FP12-33, check this

  • Your current battery should say about 33 Ah; a little more is also fine.
  • Polarity of the FP12-33: positive terminal on the left (if yours has it on the other side, the cables will not reach).
  • Measure the space: the FP12-33 takes up 195 × 130 × 178 mm.

Frequently asked questions about the Fulbat FP12-33

Fulbat FP12-33 or FP12-24H?

Compared with the FP12-33, the Fulbat FP12-24H has 9 Ah less. With 33 Ah, the FP12-33 runs longer between charges than the FP12-24H (24 Ah). Mind the space: the FP12-24H measures 164 × 125 × 174 mm.

How much does the Fulbat FP12-33 weigh?

The FP12-33 weighs 10.5 kg. For reference, the Fulbat FP12-24H (24 Ah) weighs 8.45 kg.

Which battery is equivalent to the Fulbat FP12-33?

Only other AGM batteries with its dimensions and polarity: Long WPL36-12 and Long WXL12135W. Neither an EFB nor a conventional battery replaces the FP12-33.

Which side is the positive terminal on the Fulbat FP12-33?

The FP12-33 has the positive terminal on the left, looking at the battery from its long side with the terminals closest to you.

Which charger does the Fulbat FP12-33 need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

Other options if you are unsure about the FP12-33

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