# Fulbat U1R-9 Ca/Ca · Lawn mower battery 12V 28Ah 300A

![Fulbat U1R-9 Ca/Ca · Lawn mower battery 12V 28Ah 300A](https://bateriasonline.es/604-home_default/fulbat-u1r-9-ca-ca.jpg)

> Fulbat U1R-9 Ca/Ca: 28 Ah lawn mower battery, 300 A (EN), 195×130×180 mm, positive terminal on the right. Equivalent to Exide U1R-11.

**Category:** [Lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries) → [Fulbat](https://bateriasonline.es/en/fulbat-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fulbat-u1r-9-ca-ca
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-U1R-9 CA/CA
- **MPN**: U1R-9 Ca/Ca
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Lawn & Garden Ca/Ca |
| Application | Lawn mowers and garden machinery |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 28 Ah |
| Cold cranking amps (EN) | 300 A |
| Length | 195 mm |
| Width | 130 mm |
| Height | 180 mm |
| Weight | 7.4 kg |
| Polarity | Positive terminal on the right |

## Quick description

The Fulbat U1R-9 Ca/Ca is a lawn mower battery with 12 V, 28 Ah and 300 A cold cranking current, measuring 195 × 130 × 180 mm, with the positive terminal on the right. With the positive terminal on the left, the exact counterpart is the Fulbat U1-9 Ca/Ca.

## Description

## The Fulbat U1R-9 Ca/Ca at a glance

The Fulbat U1R-9 Ca/Ca 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 U1R-9 Ca/Ca belongs to the Fulbat FULBAT Lawn & Garden Ca/Ca range. [See all Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat U1R-9 Ca/Ca

Same dimensions and polarity as the U1R-9 Ca/Ca, with similar capacity and cranking power; as a conventional battery, the U1R-9 Ca/Ca can also be replaced by an EFB or AGM of the same size if you want more cycles.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide U1R-11 | Lead-acid | 30 Ah | 300 A | 195 × 130 × 180 |

## Fulbat U1R-9 Ca/Ca vs U1R-9, U1-9 Ca/Ca and U1R-9 SLA: differences

Torn between the U1R-9 Ca/Ca and another similar Fulbat? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat U1R-9 Ca/Ca (this one) | 28 Ah | 300 A | 195 × 130 × 180 | right | 7.4 kg |
| Fulbat U1R-9 | 25.3 Ah | 240 A | 195 × 130 × 180 | right | 7.88 kg |
| Fulbat U1-9 Ca/Ca | 28 Ah | 300 A | 195 × 130 × 180 | left | 7.4 kg |
| Fulbat U1R-9 SLA | 28 Ah | 300 A | 195 × 125 × 176 | right | 6.45 kg |

- Fulbat U1R-9: 2.70 Ah less, 60 A less cranking power, the same dimensions.
- The Fulbat U1-9 Ca/Ca is the same battery with the positive terminal on the other side: choose it if your current battery has the positive terminal on the left.
- Fulbat U1R-9 SLA: the same capacity, the same cranking power, a different case (195 × 125 × 176 mm), AGM technology.

## Lead-acid technology in the U1R-9 Ca/Ca

The U1R-9 Ca/Ca is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the U1R-9 Ca/Ca needs no special registration: just connect it.

## Before ordering the U1R-9 Ca/Ca, check this

- The U1R-9 Ca/Ca needs 195 × 130 × 180 mm of space: measure it with the hold-down clamp in place.
- With the terminals facing you, the positive terminal of the U1R-9 Ca/Ca is on the right.
- Capacity of the U1R-9 Ca/Ca: 28 Ah; the same as your current battery or slightly more is fine.
- Check the EN amps on your battery: if it says 300 A or less, the U1R-9 Ca/Ca covers your engine.

## Fulbat U1R-9 Ca/Ca codes and part numbers

Look for any of these U1R-9 Ca/Ca codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | U1R-9 Ca/Ca |
|---|---|
| Not to be confused with | Fulbat U1-9 Ca/Ca (28 Ah, 300 A, positive terminal on the left) |

## Frequently asked questions about the Fulbat U1R-9 Ca/Ca

### Fulbat U1R-9 Ca/Ca or U1R-9?

Compared with the U1R-9 Ca/Ca, the Fulbat U1R-9 has 2.70 Ah less and 60 A less cranking power. The U1R-9 Ca/Ca cranks harder; the U1R-9 is only a good option if your original battery says 240 A or less. Both measure 195 × 130 × 180 mm, so they fit the same tray.

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

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

### How much does the Fulbat U1R-9 Ca/Ca weigh?

The U1R-9 Ca/Ca weighs 7.4 kg. For reference, the Fulbat U1R-9 (25.3 Ah) weighs 7.88 kg.

### Which battery is equivalent to the Fulbat U1R-9 Ca/Ca?

With the same dimensions, polarity and similar capacity you have the Exide U1R-11. As the U1R-9 Ca/Ca is a conventional battery, an EFB or AGM of the same size also works.

## Keep comparing: alternatives to the U1R-9 Ca/Ca

- [Other lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries)
- [More Fulbat models](https://bateriasonline.es/en/fulbat-batteries)
- [Fulbat 12N24-3A](https://bateriasonline.es/en/fulbat-12n24-3a) · 25.3 Ah, 220 A, 184×124×175 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-10*