# Trojan SAGM 12 135 · Solar battery 12V 135Ah

![Trojan SAGM 12 135 · Solar battery 12V 135Ah](https://bateriasonline.es/3013-home_default/trojan-sagm-12-135.jpg)

> Trojan SAGM 12 135: 135 Ah solar battery, 329×179×278 mm, AGM. Equivalent to Trojan SAES 12 135 and Trojan T1275-AGM.

**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-sagm-12-135
- **Language**: en
- **Brand**: Trojan
- **Reference**: BOL-TROJAN-SAGM 12 135
- **MPN**: SAGM 12 135
- **Price**: 727,85 € (VAT incl., Spain)
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Trojan |
| Range | TROJAN SOLAR AGM - 1700 CICLOS 50% DOD |
| Application | Solar and off-grid systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 135 Ah |
| Length | 329 mm |
| Width | 179 mm |
| Height | 278 mm |
| Weight | 38 kg |

## Quick description

Trojan SAGM 12 135: solar battery with 12 V and 135 Ah, measuring 329 × 179 × 278 mm.

## Description

## The Trojan SAGM 12 135 at a glance

The Trojan SAGM 12 135 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 SAGM 12 135 belongs to the Trojan TROJAN SOLAR AGM - 1700 CICLOS 50% DOD range. [The full range of Trojan batteries](https://bateriasonline.es/en/trojan-batteries)

## What it means that the SAGM 12 135 is AGM

Inside, the SAGM 12 135 has glass fibre separators (AGM) that hold the electrolyte. The SAGM 12 135 needs a charger with an AGM mode that does not exceed 14.7 V.

## Trojan SAGM 12 135 vs SAES 12 135 and T1275-AGM: differences

The real differences between the SAGM 12 135 and the closest Trojan models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Trojan SAGM 12 135 (this one) | 135 Ah | 329 × 179 × 278 | 38 kg |
| Trojan SAES 12 135 | 134 Ah | 329 × 179 × 278 | 39 kg |
| Trojan T1275-AGM | 140 Ah | 329 × 179 × 278 | 37 kg |

- Trojan SAES 12 135: 1 Ah less, the same dimensions.
- Trojan T1275-AGM: 5 Ah more, the same dimensions.

## Equivalents and alternatives to the Trojan SAGM 12 135

Other AGM batteries that fit the SAGM 12 135's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Trojan SAES 12 135 | AGM | 134 Ah | 329 × 179 × 278 |
| Trojan T1275-AGM | AGM | 140 Ah | 329 × 179 × 278 |

## Part numbers and codes for the Trojan SAGM 12 135

This is how the Trojan SAGM 12 135 appears on the label and in parts catalogues:

| Commercial reference | SAGM 12 135 |
|---|---|
| Not to be confused with | Trojan SAGM 12 105 (105 Ah) |

## Check this before ordering the Trojan SAGM 12 135

- With 135 Ah, the SAGM 12 135 replaces an original battery of that capacity or slightly less.
- The SAGM 12 135 needs 329 × 179 × 278 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Trojan SAGM 12 135

### SAGM 12 135 or SAES 12 135: which one suits me?

Compared with the SAGM 12 135, the Trojan SAES 12 135 has 1 Ah less. With 135 Ah, the SAGM 12 135 runs longer between charges than the SAES 12 135 (134 Ah). Both measure 329 × 179 × 278 mm, so they fit the same tray.

### How much does the Trojan SAGM 12 135 weigh?

38 kg, with 135 Ah of capacity. For reference, the Trojan SAES 12 135 (134 Ah) weighs 39 kg.

### Which battery is equivalent to the Trojan SAGM 12 135?

Only other AGM batteries with its dimensions and polarity: Trojan SAES 12 135 and Trojan T1275-AGM. Neither an EFB nor a conventional battery replaces the SAGM 12 135.

### 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.

## Keep comparing: alternatives to the SAGM 12 135

- [All solar batteries for off-grid systems](https://bateriasonline.es/en/off-grid-solar-batteries)
- [Full Trojan catalogue](https://bateriasonline.es/en/trojan-batteries)
- [Trojan SAES 12 135](https://bateriasonline.es/en/trojan-saes-12-135) · 134 Ah, 329×179×278 mm
- [Trojan T1275-AGM](https://bateriasonline.es/en/trojan-t1275-agm) · 140 Ah, 329×179×278 mm

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