# Fulbat FL-HU02 · Lawn mower battery 18V 2.5Ah

![Fulbat FL-HU02 · Lawn mower battery 18V 2.5Ah](https://bateriasonline.es/373-home_default/fulbat-fl-hu02.jpg)

> Fulbat FL-HU02: 2.5 Ah lawn mower battery, 91.5×67×26 mm, lithium. Equivalent to Fulbat FL-AL01. 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-hu02
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FL-HU02
- **MPN**: FL-HU02
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT Robot Mower |
| Application | Lawn mowers and garden machinery |
| Technology | Lithium |
| Voltage | 18 V |
| Capacity | 2.5 Ah |
| Length | 91.5 mm |
| Width | 67 mm |
| Height | 26 mm |
| Weight | 0.25 kg |
| Energy | 45 Wh |

## Quick description

Fulbat FL-HU02: lawn mower battery with 18 V and 2.5 Ah, measuring 91.5 × 67 × 26 mm.

## Description

## Who the Fulbat FL-HU02 is for

The Fulbat FL-HU02 starts ride-on mowers and garden tractors. Check polarity and terminal type: garden machinery uses several formats.
The FL-HU02 belongs to the Fulbat FULBAT Robot Mower range. [See all Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Lithium technology in the FL-HU02

Inside, the FL-HU02 uses LiFePO4 cells protected by a BMS. It includes a battery management system (BMS) that protects the cells against overcharge, over-discharge and temperature.

## Fulbat FL-HU02 vs FL-HU01 and FL-HU06: differences

The real differences between the FL-HU02 and the closest Fulbat models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Fulbat FL-HU02 (this one) | 2.5 Ah | 91.5 × 67 × 26 | 0.25 kg |
| Fulbat FL-HU01 | 2 Ah | 70.5 × 66 × 57 | 0.25 kg |
| Fulbat FL-HU06 | 2 Ah | 70.5 × 66 × 57 | 0.25 kg |

- Fulbat FL-HU01: 0.5 Ah less, a different case (70.5 × 66 × 57 mm).
- Fulbat FL-HU06: 0.5 Ah less, a different case (70.5 × 66 × 57 mm).

## Equivalents and alternatives to the Fulbat FL-HU02

Lithium alternatives to the FL-HU02 with its size and polarity.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Fulbat FL-AL01 | Lithium | 2.5 Ah | 94 × 69 × 25.5 |

## Part numbers and codes for the Fulbat FL-HU02

Shops, garages and catalogues identify the FL-HU02 with these codes:

| Commercial reference | FL-HU02 |
|---|---|
| Not to be confused with | Fulbat FL-HU01 (2 Ah), Fulbat FL-HU03 (4 Ah), Fulbat FL-HU04 (5.2 Ah) |

## What to look at before buying the FL-HU02

- Your current battery should say about 2.5 Ah; a little more is also fine.
- Measure the space: the FL-HU02 takes up 91.5 × 67 × 26 mm.

## Frequently asked questions about the Fulbat FL-HU02

### FL-HU02 or FL-HU01: which one suits me?

Compared with the FL-HU02, the Fulbat FL-HU01 has 0.5 Ah less. With 2.5 Ah, the FL-HU02 runs longer between charges than the FL-HU01 (2 Ah). Mind the space: the FL-HU01 measures 70.5 × 66 × 57 mm.

### How much does the Fulbat FL-HU02 weigh?

0.25 kg, with 2.5 Ah of capacity. For reference, the Fulbat FL-HU01 (2 Ah) weighs 0.25 kg.

### Which battery is equivalent to the Fulbat FL-HU02?

For the FL-HU02, other lithium batteries with its size and polarity: Fulbat FL-AL01.

### Which charger does the Fulbat FL-HU02 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.

## Keep comparing: alternatives to the FL-HU02

- [More lawn mower and garden machinery batteries](https://bateriasonline.es/en/lawn-mower-garden-batteries)
- [More Fulbat models](https://bateriasonline.es/en/fulbat-batteries)
- [Fulbat FL-ZU01](https://bateriasonline.es/en/fulbat-fl-zu01) · 2.6 Ah, 129×67×28 mm

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