# Trojan J185-AGM · Solar battery 12V 200Ah

![Trojan J185-AGM · Solar battery 12V 200Ah](https://bateriasonline.es/3352-home_default/trojan-j185-agm.jpg)

> Trojan J185-AGM: 200 Ah solar battery, 380×176×367 mm, AGM. 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-j185-agm
- **Language**: en
- **Brand**: Trojan
- **Reference**: BOL-TROJAN-J185-AGM
- **MPN**: J185-AGM
- **Price**: 1.064,57 € (VAT incl., Spain)
- **Last updated**: 2026-11-07

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Trojan |
| Range | TROJAN AGM RELIANT |
| Application | Solar and off-grid systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 200 Ah |
| Length | 380 mm |
| Width | 176 mm |
| Height | 367 mm |
| Weight | 57 kg |
| Terminal type | 5, 6, 15 |

## Quick description

The Trojan J185-AGM is a solar battery with 12 V and 200 Ah, measuring 380 × 176 × 367 mm.

## Description

## The Trojan J185-AGM at a glance

The Trojan J185-AGM 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 J185-AGM belongs to the Trojan TROJAN AGM RELIANT range. [More Trojan batteries](https://bateriasonline.es/en/trojan-batteries)

## Equivalents and alternatives to the Trojan J185-AGM

No other reference in the catalogue fully matches the dimensions and polarity of the J185-AGM; you will find the closest ones among our [solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries).

## Trojan J185-AGM vs SAES 12 205, SAGM 12 205 and 12-AGM: differences

Torn between the J185-AGM and another similar Trojan? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Trojan J185-AGM (this one) | 200 Ah | 380 × 176 × 367 | 57 kg |
| Trojan SAES 12 205 | 179 Ah | 380 × 176 × 357 | 57 kg |
| Trojan SAGM 12 205 | 205 Ah | 380 × 176 × 357 | 59 kg |
| Trojan 12-AGM | 140 Ah | 344 × 172 × 278 | 45 kg |

- Trojan SAES 12 205: 21 Ah less, a different case (380 × 176 × 357 mm).
- Trojan SAGM 12 205: 5 Ah more, a different height (357 mm instead of 367 mm). It is the option if your battery tray cannot take the 367 mm height of the J185-AGM.
- Trojan 12-AGM: 60 Ah less, a different case (344 × 172 × 278 mm).

## AGM technology in the J185-AGM

Inside, the J185-AGM has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## What to look at before buying the J185-AGM

- Measure the space: the J185-AGM takes up 380 × 176 × 367 mm.
- With 200 Ah, the J185-AGM replaces an original battery of that capacity or slightly less.

## Trojan J185-AGM codes and part numbers

Shops, garages and catalogues identify the J185-AGM with these codes:

| Commercial reference | J185-AGM |
|---|---|
| Terminal type | 5, 6, 15 |

## Frequently asked questions about the Trojan J185-AGM

### Trojan J185-AGM or SAES 12 205?

Compared with the J185-AGM, the Trojan SAES 12 205 has 21 Ah less. With 200 Ah, the J185-AGM runs longer between charges than the SAES 12 205 (179 Ah). Mind the space: the SAES 12 205 measures 380 × 176 × 357 mm.

### Trojan J185-AGM or SAGM 12 205: what changes?

Mainly the height: the J185-AGM is 367 mm tall and the Trojan SAGM 12 205 357 mm, with the same length and width and 205 Ah against 200 Ah. Before choosing between the J185-AGM and the SAGM 12 205, measure the free height of the battery compartment with the cover or bonnet closed.

### How much does the Trojan J185-AGM weigh?

The J185-AGM weighs 57 kg. For reference, the Trojan SAES 12 205 (179 Ah) weighs 57 kg.

### How far can I discharge the Trojan J185-AGM each day?

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

## Other options if you are unsure about the J185-AGM

- [More solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries)
- [More Trojan models](https://bateriasonline.es/en/trojan-batteries)
- [Trojan 8D-AGM](https://bateriasonline.es/en/trojan-8d-agm) · 230 Ah, 520×270×231 mm
- [Long WPG200-12AN](https://bateriasonline.es/en/long-wpg200-12an) · 200 Ah, 522×238×224 mm
- [Long CWP200-12N](https://bateriasonline.es/en/long-cwp200-12n) · 200 Ah, 522×238×224 mm

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