# Trojan 24-GEL · Solar battery 12V 77Ah

![Trojan 24-GEL · Solar battery 12V 77Ah](https://bateriasonline.es/3286-home_default/trojan-24-gel.jpg)

> Trojan 24-GEL: 77 Ah solar battery, 276×171×236 mm, GEL. VAT included, shipping cost shown before you pay, 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-24-gel
- **Language**: en
- **Brand**: Trojan
- **Reference**: BOL-TROJAN-24-GEL
- **EAN**: 8404653001315
- **MPN**: 24-GEL
- **Price**: 621,61 € (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 | 77 Ah |
| Length | 276 mm |
| Width | 171 mm |
| Height | 236 mm |
| Weight | 24 kg |

## Quick description

Trojan 24-GEL: solar battery with 12 V and 77 Ah, measuring 276 × 171 × 236 mm.

## Description

## Who the Trojan 24-GEL is for

The Trojan 24-GEL is a deep-cycle battery for off-grid solar systems: it stores the day's energy for use at night and withstands years of charge and discharge cycles. Its capacity is rated at 20 hours (C20); at slower discharge rates the usable capacity is higher.
The 24-GEL belongs to the Trojan TROJAN GEL range. [See all Trojan batteries](https://bateriasonline.es/en/trojan-batteries)

## Inside the 24-GEL: GEL technology

The 24-GEL is a gel battery: the electrolyte is immobilised in silica gel. It requires a charger with a specific gel profile.

## Trojan 24-GEL vs 27-GEL and 31-GEL: which one to choose?

What sets the 24-GEL apart from its neighbours in the Trojan range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Trojan 24-GEL (this one) | 77 Ah | 276 × 171 × 236 | 24 kg |
| Trojan 27-GEL | 91 Ah | 324 × 171 × 234 | 29 kg |
| Trojan 31-GEL | 102 Ah | 329 × 171 × 245 | 32 kg |

- Trojan 27-GEL: 14 Ah more, a different case (324 × 171 × 234 mm).
- Trojan 31-GEL: 25 Ah more, a different case (329 × 171 × 245 mm).

## Equivalents and alternatives to the Trojan 24-GEL

No other reference in the catalogue fully matches the dimensions and polarity of the 24-GEL; you will find the closest ones among our [solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries).

## Trojan 24-GEL codes and part numbers

The 24-GEL is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | 24-GEL |
|---|---|
| EAN | 8404653001315 |
| Not to be confused with | Trojan 27-GEL (91 Ah) |

## Check this before ordering the Trojan 24-GEL

- With 77 Ah, the 24-GEL replaces an original battery of that capacity or slightly less.
- The 24-GEL needs 276 × 171 × 236 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Trojan 24-GEL

### Trojan 24-GEL or 27-GEL?

Compared with the 24-GEL, the Trojan 27-GEL has 14 Ah more. With 91 Ah, the 27-GEL runs longer between charges than the 24-GEL (77 Ah). Mind the space: the 27-GEL measures 324 × 171 × 234 mm.

### How much does the Trojan 24-GEL weigh?

The 24-GEL weighs 24 kg. For reference, the Trojan 27-GEL (91 Ah) weighs 29 kg.

### What are the dimensions and weight of the Trojan 24-GEL?

It measures 276 × 171 × 236 mm and weighs 24 kg. Compare these figures with the tray and the hold-down clamp before ordering.

## More batteries to compare with the 24-GEL

- [All 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 5SHP-GEL](https://bateriasonline.es/en/trojan-5shp-gel) · 125 Ah, 345×171×283 mm

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