# Trojan 31-AGM SV · Solar battery 12V 100Ah

![Trojan 31-AGM SV · Solar battery 12V 100Ah](https://bateriasonline.es/3317-home_default/trojan-31-agm-sv.jpg)

> Trojan 31-AGM SV: 100 Ah solar battery, 325×173×238 mm, AGM. Equivalent to Trojan SAGM 12 105. 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-31-agm-sv
- **Language**: en
- **Brand**: Trojan
- **Reference**: BOL-TROJAN-31-AGM SV
- **MPN**: 31-AGM SV
- **Price**: 595,74 € (VAT incl., Spain)
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Trojan |
| Range | TROJAN AGM RELIANT |
| Application | Solar and off-grid systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 100 Ah |
| Length | 325 mm |
| Width | 173 mm |
| Height | 238 mm |
| Weight | 30 kg |
| Terminal type | 6, 15 |

## Quick description

Trojan 31-AGM SV: solar battery with 12 V and 100 Ah, measuring 325 × 173 × 238 mm.

## Description

## Where the Trojan 31-AGM SV fits

The Trojan 31-AGM SV 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 31-AGM SV belongs to the Trojan TROJAN AGM RELIANT range. [More Trojan batteries](https://bateriasonline.es/en/trojan-batteries)

## AGM technology in the 31-AGM SV

Inside, the 31-AGM SV has glass fibre separators (AGM) that hold the electrolyte. The 31-AGM SV needs a charger with an AGM mode that does not exceed 14.7 V.

## Trojan 31-AGM SV vs SAGM 12 105 and SAES 12 105

The real differences between the 31-AGM SV and the closest Trojan models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Trojan 31-AGM SV (this one) | 100 Ah | 325 × 173 × 238 | 30 kg |
| Trojan SAGM 12 105 | 105 Ah | 325 × 173 × 237 | 30 kg |
| Trojan SAES 12 105 | 107 Ah | 325 × 173 × 237 | 31 kg |

- Trojan SAGM 12 105: 5 Ah more, the same dimensions.
- Trojan SAES 12 105: 7 Ah more, the same dimensions.

## Equivalents and alternatives to the Trojan 31-AGM SV

Other AGM batteries that fit the 31-AGM SV's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Trojan SAGM 12 105 | AGM | 105 Ah | 325 × 173 × 237 |

## Part numbers and codes for the Trojan 31-AGM SV

This is how the Trojan 31-AGM SV appears on the label and in parts catalogues:

| Commercial reference | 31-AGM SV |
|---|---|
| Terminal type | 6, 15 |

## Before ordering the 31-AGM SV, check this

- With 100 Ah, the 31-AGM SV replaces an original battery of that capacity or slightly less.
- Length, width and height of the 31-AGM SV: 325 × 173 × 238 mm.

## Frequently asked questions about the Trojan 31-AGM SV

### 31-AGM SV or SAGM 12 105: which one suits me?

Compared with the 31-AGM SV, the Trojan SAGM 12 105 has 5 Ah more. With 105 Ah, the SAGM 12 105 runs longer between charges than the 31-AGM SV (100 Ah). Both measure 325 × 173 × 238 mm, so they fit the same tray.

### How much does the Trojan 31-AGM SV weigh?

30 kg, with 100 Ah of capacity. For reference, the Trojan SAGM 12 105 (105 Ah) weighs 30 kg.

### Which battery is equivalent to the Trojan 31-AGM SV?

Only other AGM batteries with its dimensions and polarity: Trojan SAGM 12 105. Neither an EFB nor a conventional battery replaces the 31-AGM SV.

### Which regulator do I need?

One with a profile for the battery technology (AGM, gel, flooded or lithium) and temperature compensation. MPPT regulators get more out of the panels.

## Other options if you are unsure about the 31-AGM SV

- [All solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries)
- [More Trojan models](https://bateriasonline.es/en/trojan-batteries)
- [Trojan 31-AGM](https://bateriasonline.es/en/trojan-31-agm) · 100 Ah, 341×173×233 mm

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