# Fulbat FL-ST03 · Lawn mower battery 25.2V 2.6Ah

![Fulbat FL-ST03 · Lawn mower battery 25.2V 2.6Ah](https://bateriasonline.es/357-home_default/fulbat-fl-st03.jpg)

> Fulbat FL-ST03: 2.6 Ah lawn mower battery, 144×77×38 mm, lithium. Price on request: ask for a free 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-st03
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FL-ST03
- **MPN**: FL-ST03
- **Last updated**: 2026-11-07

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Robot Mower |
| Application | Lawn mowers and garden machinery |
| Technology | Lithium |
| Voltage | 25.2 V |
| Capacity | 2.6 Ah |
| Length | 144 mm |
| Width | 77 mm |
| Height | 38 mm |
| Weight | 0.46 kg |
| Energy | 66 Wh |

## Quick description

Fulbat FL-ST03: lawn mower battery with 25.2 V and 2.6 Ah, measuring 144 × 77 × 38 mm.

## Description

## The Fulbat FL-ST03 at a glance

The Fulbat FL-ST03 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 FL-ST03 belongs to the Fulbat FULBAT Robot Mower range. [The full range of Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## What it means that the FL-ST03 is lithium

The FL-ST03 is a lithium iron phosphate (LiFePO4) battery with a battery management system (BMS). For the FL-ST03, always use a charger with a lithium or LiFePO4 mode.

## Equivalents and alternatives to the Fulbat FL-ST03

We have no other battery with exactly the dimensions and polarity of the FL-ST03. Browse the rest of our [lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries) to compare close options.

## Part numbers and codes for the Fulbat FL-ST03

Look for any of these FL-ST03 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | FL-ST03 |
|---|---|
| Not to be confused with | Fulbat FL-ST01 (8.7 Ah), Fulbat FL-ST02 (13.8 Ah) |

## Before ordering the FL-ST03, check this

- With 2.6 Ah, the FL-ST03 replaces an original battery of that capacity or slightly less.
- Measure the space: the FL-ST03 takes up 144 × 77 × 38 mm.

## Frequently asked questions about the Fulbat FL-ST03

### How much does the Fulbat FL-ST03 weigh?

0.46 kg, with 2.6 Ah of capacity.

### Which charger does the Fulbat FL-ST03 need?

A charger or regulator with a lithium/LiFePO4 mode (14.2-14.6 V for 12 V). Do not use lead-acid chargers with a desulphation stage and do not charge it below 0 °C.

### What are the dimensions and weight of the Fulbat FL-ST03?

It measures 144 × 77 × 38 mm and weighs 0.46 kg. Compare these figures with the tray and the hold-down clamp before ordering.

## More batteries to compare with the FL-ST03

- [More lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries)
- [The whole Fulbat range](https://bateriasonline.es/en/fulbat-batteries)
- [Fulbat FL-BS01](https://bateriasonline.es/en/fulbat-fl-bs01) · 3 Ah, 217×85×58 mm
- [Fulbat FL-ZU01](https://bateriasonline.es/en/fulbat-fl-zu01) · 2.6 Ah, 129×67×28 mm
- [Fulbat FL-RM02](https://bateriasonline.es/en/fulbat-fl-rm02) · 3 Ah, 212×164×108 mm

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