Fulbat

Fulbat U1-9 · Lawn mower battery 12V 25.3Ah 240A

Reference: BOL-FULBAT-U1-9

The Fulbat U1-9 is a lawn mower battery with 12 V, 25.3 Ah and 240 A cold cranking current, measuring 195 × 130 × 180 mm, with the positive terminal on the left. Need the positive terminal on the right? The same battery is the Fulbat U1R-9.

Voltage
12V
Capacity
25.3Ah
Cold cranking amps (EN)
240A
Technology
Lead-acid
Dimensions (L × W × H)
195 × 130 × 180 mm
Polarity
Positive terminal on the left
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Where the Fulbat U1-9 fits

The Fulbat U1-9 is a starter battery for ride-on mowers and garden machinery: small, 12 V and with enough cranking power for single-cylinder engines. Check polarity and terminal type: garden machinery uses several formats.

The U1-9 belongs to the Fulbat FULBAT Lawn & Garden DRY range. See all Fulbat batteries

Equivalents and alternatives to the Fulbat U1-9

Same dimensions and polarity as the U1-9, with similar capacity and cranking power; as a conventional battery, the U1-9 can also be replaced by an EFB or AGM of the same size if you want more cycles.

ModelTechnologyCapacityCold cranking (EN)Dimensions (mm)
Exide U1-9Lead-acid24 Ah240 A195 × 130 × 180

Fulbat U1-9 vs U1-9 Ca/Ca, U1R-9 and U1-9 SLA: which one to choose?

Torn between the U1-9 and another similar Fulbat? This is what changes:

ModelCapacityCold cranking (EN)Dimensions (mm)PositiveWeight
Fulbat U1-9 (this one)25.3 Ah240 A195 × 130 × 180left7.88 kg
Fulbat U1-9 Ca/Ca28 Ah300 A195 × 130 × 180left7.4 kg
Fulbat U1R-925.3 Ah240 A195 × 130 × 180right7.88 kg
Fulbat U1-9 SLA28 Ah300 A195 × 125 × 176left6.45 kg
  • Fulbat U1-9 Ca/Ca: 2.70 Ah more, 60 A more cranking power, the same dimensions.
  • The Fulbat U1R-9 is the same battery with the positive terminal on the other side: choose it if your current battery has the positive terminal on the right.
  • Fulbat U1-9 SLA: 2.70 Ah more, 60 A more cranking power, a different case (195 × 125 × 176 mm), AGM technology.

Lead-acid technology in the U1-9

The U1-9 is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the U1-9 needs no special registration: just connect it.

What to look at before buying the U1-9

  • The U1-9 needs 195 × 130 × 180 mm of space: measure it with the hold-down clamp in place.
  • Polarity of the U1-9: positive terminal on the left (if yours has it on the other side, the cables will not reach).
  • Your current battery should say about 25.3 Ah; a little more is also fine.
  • The U1-9 delivers 240 A cold cranking (EN standard); do not go below what your original battery states.

Fulbat U1-9 codes and part numbers

Look for any of these U1-9 codes on your current battery or in the manufacturer's catalogue:

Commercial referenceU1-9
Not to be confused withFulbat U1R-9 (25.3 Ah, 240 A, positive terminal on the right)

Frequently asked questions about the Fulbat U1-9

Fulbat U1-9 or U1-9 Ca/Ca?

Compared with the U1-9, the Fulbat U1-9 Ca/Ca has 2.70 Ah more and 60 A more cranking power. If your current battery says 300 A or more, choose the U1-9 Ca/Ca; if it says 240 A or less, the U1-9 is enough. Both measure 195 × 130 × 180 mm, so they fit the same tray.

What is the difference between the Fulbat U1-9 and the U1R-9?

They are the same battery with the terminals swapped: positive terminal on the left on the U1-9, positive terminal on the right on the U1R-9. Look at your current battery with the terminals facing you and pick the one that matches.

How much does the Fulbat U1-9 weigh?

The U1-9 weighs 7.88 kg. For reference, the Fulbat U1-9 Ca/Ca (28 Ah) weighs 7.4 kg.

Which battery is equivalent to the Fulbat U1-9?

With the same dimensions, polarity and similar capacity you have the Exide U1-9. As the U1-9 is a conventional battery, an EFB or AGM of the same size also works.

Why is the mower battery dead every spring?

Because it spends the winter discharging. Charge it before storing the machine and give it a maintenance charge every two months, or disconnect it.

Other options if you are unsure about the U1-9

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