# Trojan 8D-GEL · Solar battery 12V 225Ah

![Trojan 8D-GEL · Solar battery 12V 225Ah](https://bateriasonline.es/3339-home_default/trojan-8d-gel.jpg)

> Trojan 8D-GEL: 225 Ah solar battery, 534×279×233 mm, GEL. Compare sizes and equivalents; 14-day returns.

**Category:** [Solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries) → [Trojan](https://bateriasonline.es/en/trojan-batteries)

- **Canonical URL**: https://bateriasonline.es/en/trojan-8d-gel
- **Language**: en
- **Brand**: Trojan
- **Reference**: BOL-TROJAN-8D-GEL
- **EAN**: 8404653000028
- **MPN**: 8D-GEL
- **Price**: 1.805,11 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Trojan |
| Range | TROJAN GEL |
| Application | Solar and off-grid systems |
| Technology | GEL |
| Voltage | 12 V |
| Capacity | 225 Ah |
| Length | 534 mm |
| Width | 279 mm |
| Height | 233 mm |
| Weight | 71 kg |

## Quick description

The Trojan 8D-GEL is a solar battery with 12 V and 225 Ah, measuring 534 × 279 × 233 mm.

## Description

## The Trojan 8D-GEL at a glance

The Trojan 8D-GEL is made for stand-alone photovoltaic and off-grid systems. Its capacity is rated at 20 hours (C20); at slower discharge rates the usable capacity is higher.
The 8D-GEL belongs to the Trojan TROJAN GEL range. [The full range of Trojan batteries](https://bateriasonline.es/en/trojan-batteries)

## Equivalents and alternatives to the Trojan 8D-GEL

No other reference in the catalogue fully matches the dimensions and polarity of the 8D-GEL; you will find the closest ones among our [solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries).

## GEL technology in the 8D-GEL

Inside, the 8D-GEL holds its electrolyte in gel form. It is the classic technology for wheelchairs, scooters, motorhomes and solar.

## Before ordering the 8D-GEL, check this

- Length, width and height of the 8D-GEL: 534 × 279 × 233 mm.
- Your current battery should say about 225 Ah; a little more is also fine.

## Trojan 8D-GEL codes and part numbers

Shops, garages and catalogues identify the 8D-GEL with these codes:

| Commercial reference | 8D-GEL |
|---|---|
| EAN | 8404653000028 |
| Not to be confused with | Trojan 8V-GEL (140 Ah) |

## Frequently asked questions about the Trojan 8D-GEL

### How much does the Trojan 8D-GEL weigh?

The 8D-GEL weighs 71 kg.

### How far can I discharge the Trojan 8D-GEL each day?

To make it last years, do not go below 50% routinely. Size the bank so daily consumption is half the installed capacity.

### What are the dimensions and weight of the Trojan 8D-GEL?

It measures 534 × 279 × 233 mm and weighs 71 kg. Compare these figures with the tray and the hold-down clamp before ordering.

## Other options if you are unsure about the 8D-GEL

- [Other solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries)
- [The whole Trojan range](https://bateriasonline.es/en/trojan-batteries)
- [Trojan TE35-GEL](https://bateriasonline.es/en/trojan-te35-gel) · 210 Ah, 245×191×271 mm
- [Trojan 6V-GEL](https://bateriasonline.es/en/trojan-6v-gel) · 189 Ah, 260×181×275 mm

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