# Solar battery Trojan 8D-AGM 12V 230Ah AGM

![Solar battery Trojan 8D-AGM 12V 230Ah AGM](https://baterias.com/681-home_default/battery-trojan-8d-agm-12v.jpg)

> Trojan 8D-AGM solar battery 12V 230Ah AGM. Dimensions 520×270×231 mm. Designed for PV systems with daily cyclic loads.

**Category:** [Batteries for Solar Applications](https://baterias.com/gb/batteries-for-solar-applications) → [TROJAN](https://baterias.com/gb/trojan)

- **Canonical URL**: https://baterias.com/gb/battery-trojan-8d-agm-12v
- **Language**: en-GB
- **Brand**: TROJAN
- **Reference**: BCOM-TROJAN-8D-AGM
- **EAN**: 8404653001568
- **MPN**: 8D-AGM
- **Price**: 1.509,40 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | TROJAN |
| Reference | 8 D-AGM |
| Model | TROJAN AGM |
| Voltage (V) | 12 V |
| Largo | 520 mm |
| Ancho | 270 mm |
| Alto | 231 mm |
| Peso | 73 kg |
| Tecnología | AGM |
| Terminal type | 6 |
| Capacity (C20) | 230 Ah (c20) |
| Capacity (C5) | 179 Ah (c5) |

## Quick description

**Trojan 8D-AGM 12V 230Ah** is a solar battery designed for PV systems with daily charge/discharge cycles. Tolerates extreme temperatures well, with low self-discharge during winter shutdowns or between stays at vacation homes.

## Why this solar battery?

- **Designed for solar systems** optimised for daily charge/discharge cycles
- **Handles extreme temperatures** in technical rooms or outdoor installs
- **Minimal self-discharge** when left idle over winter or holidays

🔌 Voltage
12 V

⚡ Capacity
230 Ah C20

📏 Dimensions
520×270×231 mm

⚙️ Technology
AGM

⚖️ Weight
73 kg

🏷️ Model
TROJAN AGM

## Description

## Solar battery Trojan 8D-AGM 230Ah 12V

12*V* Voltage
230*Ah* Capacity
73*kg* Weight

The **12 V**, **230 Ah** **Trojan 8D-AGM** solar battery with AGM technology is designed for off-grid photovoltaic installations and storage systems. It replaces the original battery without adaptation in off-grid PV systems with a 520 × 270 × 231 mm format: same 230 Ah capacity.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Optimised for daily charge and discharge cycles.
- Good tolerance to extreme temperatures.
- Long life on float and moderate cycling.

### What the Trojan 8D-AGM is for

With 230 Ah, the Trojan 8D-AGM stores the energy from your panels for the night and cloudy days. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 73 kg and 6 terminals.

### Dimensions, polarity and mounting

It has external dimensions of 520 × 270 × 231 mm and weighs 73 kg. It uses 6 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

### Technology inside the Trojan 8D-AGM

Within the Trojan catalogue, the 8D-AGM is the 230 Ah model designed for this application.
In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.

### Why choose Trojan batteries

Founded in 1925 in California, Trojan invented the golf cart battery and remains the standard in deep-discharge applications that demand thousands of cycles. All the Trojan batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

### Manufacturer's warranty

The Trojan 8D-AGM comes with the **manufacturer's official warranty** against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.

### Care and maintenance

In the darker months, check the voltage periodically and avoid full discharges. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.

### Shipping, delivery and returns

Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.

## Frequently asked questions

### Is the 8D-AGM model AGM? What does this technology offer?

Yes. The 8D-AGM from Trojan uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for devices with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.

### How do I fit the 8D-AGM model in my device?

In most devices it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How many years does this battery last?

Expected lifespan of the Trojan 8D-AGM is 5 to 8 years in mild-climate device use with Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.

### What are the dimensions of the Trojan 8D-AGM battery?

Dimensions (length × width × height) are 520×270×231 mm — also written as 520x270x231 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### Which interchangeable batteries are there for this one?

Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop devices. See the "Equivalents" section to view recommended options at the same performance level.


## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-10-20*