# Solar battery Trojan 12-AGM 12V 140Ah AGM ![Solar battery Trojan 12-AGM 12V 140Ah AGM](https://baterias.com/698-home_default/battery-trojan-12-agm-12v.jpg) > Trojan 12-AGM solar battery 12V 140Ah AGM. Dimensions 344×172×278 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-12-agm-12v - **Language**: en-GB - **Brand**: TROJAN - **Reference**: BCOM-TROJAN-12-AGM - **EAN**: 8404653001544 - **MPN**: 12-AGM - **Price**: 974,70 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | TROJAN | | Reference | 12-AGM | | Model | TROJAN AGM | | Voltage (V) | 12 V | | Largo | 344 mm | | Ancho | 172 mm | | Alto | 278 mm | | Peso | 45 kg | | Tecnología | AGM | | Terminal type | 15 | | Capacity (C20) | 140 Ah (c20) | | Capacity (C5) | 112 Ah (c5) | ## Quick description **Trojan 12-AGM 12V 140Ah** 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 140 Ah C20 📏 Dimensions 344×172×278 mm ⚙️ Technology AGM ⚖️ Weight 45 kg 🏷️ Model TROJAN AGM ## Description ## Solar battery Trojan 12-AGM 140Ah 12V 12*V* Voltage 140*Ah* Capacity 45*kg* Weight For off-grid photovoltaic installations and storage systems, the **Trojan 12-AGM** stores **140 Ah** with AGM technology through daily charge and discharge cycles. Measuring 344 × 172 × 278 mm, it is the direct replacement for off-grid PV systems fitted from the factory with a 140 Ah battery of this format. - Maintenance-free in off-grid installations. - Compatible with common MPPT and PWM controllers. - AGM: faster recharging and better cycle resistance than a conventional battery. - Low self-discharge during the darker months. ### Will it fit your current battery tray? The Trojan 12-AGM is made in the 344 × 172 × 278 mm format and weighs 45 kg. It uses 15 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change. ### What the Trojan 12-AGM is for The Trojan 12-AGM is designed for off-grid photovoltaic installations and storage systems. Size the capacity so as not to discharge more than 50% daily and you will greatly extend its life. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 45 kg and 15 terminals. ### Technology inside the Trojan 12-AGM Within the Trojan catalogue, the 12-AGM is the 140 Ah model designed for this application. AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly. ### 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. ### Official warranty The Trojan 12-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. ### Usage and maintenance tips Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Size the installation so as not to discharge the battery more than 50% daily and set the controller to the battery technology. ### When you get it and how to return it Orders placed **before [[ks:cutoff]]** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have **[[ks:return_days]] days** to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships. ## Frequently asked questions ### Is the Trojan 12-AGM an AGM battery and what are the benefits of AGM? Yes. The 12-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 12-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 this page. 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 long does the Trojan 12-AGM battery last? Expected lifespan of the Trojan 12-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 12-AGM battery? Dimensions (length × width × height) are 344×172×278 mm — also written as 344x172x278 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 batteries are equivalent to the Trojan 12-AGM? 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 2015. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-10*