# TROJAN SOLAR PREMIUM Batteries - SMART CARBON

> Trojan Solar Premium Smart Carbon battery, PSoC tolerance for intensive off-grid. 105-450 Ah, 6V/12V. SPRE 06 225, SPRE 06 415. 24h delivery.

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## Description

**Trojan Solar Premium Smart Carbon batteries**: Trojan's most advanced solar range, featuring Smart Carbon™ technology for intensive off-grid solar installations. Formats from 105 to 450 Ah, 6V and 12V. Enhanced tolerance to partial state of charge (PSoC), common in day-to-day solar operation.
Built for anyone demanding maximum performance and lifespan from their renewable stationary battery bank: daily-intensive off-grid homes, large solar farms or installations where the battery rarely reaches full charge.

## Trojan Solar Premium Smart Carbon: the top tier for off-grid

The **Solar Premium Smart Carbon** series features Smart Carbon™ technology on the negative plate, reducing sulfation and improving tolerance to partial state of charge (PSoC), common in off-grid solar installations where the battery rarely reaches 100%.
Compared with the Signature 600 or AGM 1700, the Premium Smart Carbon is built for the most demanding off-grid duty, with formats up to 450 Ah in both 6V and 12V.

### Which off-grid solar setups it suits

- Off-grid home with daily intensive use and solar as the sole power source
- Farm or smallholding with solar panels and high, constant draw
- Small 12V solar cabin or refuge with a heavily-used bank
- Large off-grid installations where the battery almost never reaches full charge

### Available models

Code V Ah Application
SPRE 06 225 6 225 Solar cabin
SPRE 06 415 6 415 Off-grid home
SPRE 12 105 12 105 12V solar shed
SPRE 06 450 6 450 Big off-grid

### How to choose your Trojan solar battery

Compare cycle life, Ah and technology across Trojan ranges in our [battery comparator](/gb/comparator); if your installation rarely reaches full charge, PSoC tolerance makes a real difference to lifespan.

## FAQ about the Trojan Solar Premium Smart Carbon

### **What is Trojan's Smart Carbon technology?**

It's a carbon additive on the negative plate that reduces sulfation and improves charge acceptance, extending lifespan when the battery doesn't always reach full charge.

### **Is it compatible with any off-grid solar installation?**

Yes, in both 6V and 12V configurations, provided the charge controller is sized for flooded deep-cycle lead-acid.

### **What's the difference between the Premium Smart Carbon and the AGM 1700?**

The Premium Smart Carbon is flooded, with better PSoC tolerance and larger formats; the AGM 1700 is sealed and maintenance-free, but with less maximum capacity available.

Catalogue curated by our technical team. **11,063 Trustpilot reviews · 4.5/5**. 24h mainland delivery, free 14-day returns.

## Products in this category

| Product | Brand | Price |
|---|---|---|
| [Solar battery Trojan SPRE 12 225 12V 204Ah](https://baterias.com/gb/battery-trojan-spre-12-225-12v-204ah) | TROJAN | 940,63 € |
| [Solar battery Trojan SPRE 06 415 6V 377Ah](https://baterias.com/gb/battery-trojan-spre-06-415-6v-377ah) | TROJAN | 920,58 € |
| [Solar battery Trojan SPRE 06 255 6V 229Ah](https://baterias.com/gb/battery-trojan-spre-06-255-6v-229ah) | TROJAN | 491,30 € |
| [Solar battery Trojan SPRE 02 1255 2V 1130Ah](https://baterias.com/gb/battery-trojan-spre-02-1255-2v-1130ah) | TROJAN | 932,04 € |

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries.

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

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*baterias.com — Automotive batteries · 2026-08-11*