# Fulbat FL-RM03 · Lawn mower battery 25.6V 6.6Ah

![Fulbat FL-RM03 · Lawn mower battery 25.6V 6.6Ah](https://bateriasonline.es/380-home_default/fulbat-fl-rm03.jpg)

> Fulbat FL-RM03: 6.6 Ah lawn mower battery, 216×56×79 mm, lithium. Ask for a no-obligation quote.

**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-fl-rm03
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FL-RM03
- **MPN**: FL-RM03
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Robot Mower |
| Application | Lawn mowers and garden machinery |
| Technology | Lithium |
| Voltage | 25.6 V |
| Capacity | 6.6 Ah |
| Length | 216 mm |
| Width | 56 mm |
| Height | 79 mm |
| Weight | 1.47 kg |
| Energy | 169 Wh |

## Quick description

The Fulbat FL-RM03 is a lawn mower battery with 25.6 V and 6.6 Ah, measuring 216 × 56 × 79 mm.

## Description

## Where the Fulbat FL-RM03 fits

The Fulbat FL-RM03 starts ride-on mowers and garden tractors. Check polarity and terminal type: garden machinery uses several formats.
The FL-RM03 belongs to the Fulbat FULBAT Robot Mower range. [The full range of Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Equivalents and alternatives to the Fulbat FL-RM03

No other reference in the catalogue fully matches the dimensions and polarity of the FL-RM03; you will find the closest ones among our [lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries).

## Inside the FL-RM03: lithium technology

Inside, the FL-RM03 uses LiFePO4 cells protected by a BMS. The FL-RM03 self-discharges very little at rest, so it can stand for months.

## Check this before ordering the Fulbat FL-RM03

- Measure the space: the FL-RM03 takes up 216 × 56 × 79 mm.
- Capacity of the FL-RM03: 6.6 Ah; the same as your current battery or slightly more is fine.

## Fulbat FL-RM03 codes and part numbers

This is how the Fulbat FL-RM03 appears on the label and in parts catalogues:

| Commercial reference | FL-RM03 |
|---|---|
| Not to be confused with | Fulbat FL-RM02 (3 Ah) |

## Frequently asked questions about the Fulbat FL-RM03

### How much does the Fulbat FL-RM03 weigh?

The FL-RM03 weighs 1.47 kg.

### 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.

### What are the dimensions and weight of the Fulbat FL-RM03?

It measures 216 × 56 × 79 mm and weighs 1.47 kg. Compare these figures with the tray and the hold-down clamp before ordering.

## More batteries to compare with the FL-RM03

- [Other lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries)
- [More Fulbat models](https://bateriasonline.es/en/fulbat-batteries)

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