# Solar battery Trojan U1-AGM 12V 33Ah AGM ![Solar battery Trojan U1-AGM 12V 33Ah AGM](https://baterias.com/610-home_default/battery-trojan-u1-agm-12v.jpg) > Trojan U1-AGM solar battery 12V 33Ah AGM. Designed for PV systems with daily cyclic loads. 24 h delivery. **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-u1-agm-12v - **Language**: en-GB - **Brand**: TROJAN - **Reference**: BCOM-TROJAN-U1-AGM - **EAN**: 8404653001490 - **MPN**: U1-AGM - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | TROJAN | | Reference | U1-AGM | | Model | TROJAN AGM | | Voltaje | 12 V | | Largo | 198 mm | | Ancho | 132 mm | | Alto | 171 mm | | Peso | 12 kg | | Tecnología | AGM | | Terminal | 15 | | Capacidad C20 (Ah) | 33 Ah (c20) | | Capacidad C5 (Ah) | 29 Ah (c5) | ## Quick description **Trojan U1-AGM 12V 33Ah** 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 33 Ah C20 📏 Dimensions 198×132×171 mm ⚙️ Technology AGM ⚖️ Weight 12 kg 🏷️ Model Trojan AGM ## Description ## Battery Trojan U1-AGM 33Ah 12V The battery TROJAN U1-AGM 33Ah 12V AGM belongs to the AGM de Trojan batteries range These deep cycle batteries tolerate low temperatures, are resistant to blows and vibrations and have low internal resistance, allowing a higher discharge stream and upper load efficiency. In the AgM de Trojan battery catalog we can find batteries that provide optimal performance and a maximum output of total energy that stand out in regulated places, such as health facilities, airports and educational institutions. In addition to finding dual purpose batteries that provide sufficient energy to start engines, as well as the capacity for auxiliary uses which are ideal for applications that require a powerful start and low amps consumption. ### Ideal for: - Cleaning machines - Industrial machinery as rising cracks - Marine applications - Recreational vehicles ### Battery advantages and characteristics TROJAN U1-AGM 33Ah 12V - Free of mantenimient - Spill -proof - Tolerant at low temperatures - Resistant to shock and vibrations - Low internal resistance for a higher discharge current and greater load efficiency. - AGM technology ### How to find the right battery for your vehicle or device? If you are not sure what drums you need, do not hesitate to contact us and we will be happy to advise you. ### Why choose a battery trojan? Choosing trojan batteries will be a success, because the trojan batteries are a reference in batteries for golf cars, batteries for elevators or batteries for cleaning machine. ### Know more about the trojan brand Trojan is the worldwide leader of deep cycle industrial batteries.It has liquid electrolyte, AGM and deep cycle gel batteries to meet the most demanding battery needs. Trojan batteries incorporate some important innovations, such as the exclusive T2 ™ Trojan Technology, the Alpha Plus® pasta, or the Maxguard® separator, to give maximum performance In addition, the Trojan engineering team has more than 200 years of combined experience in deep cycle batteries. If you want additional information about Battery Trojan U1-AGM, you can download the product's technical sheet at the following link: [ Download technical sheet Trojan U1-AGM 33Ah 12V](/fichastecnicas/data-sheet-battery-trojan-u1-agm-33ah-12v-en.pdf) ## Frequently asked questions ### Is the Trojan U1-AGM an AGM battery and what are the benefits of AGM? Yes. The U1-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 know if the U1-AGM model fits my device? Three ways: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team for the U1-AGM; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 9:00–18:00 CET). ### How is the Trojan U1-AGM battery installed in the vehicle? 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 many years of warranty does the U1-AGM model cover? This battery includes 2 years of official manufacturer warranty against manufacturing defects. Coverage includes cell breakdowns, internal short-circuits and abnormal capacity decreases. It does NOT cover misuse (prolonged overcharging, inadequate charger, defective alternator). Once the defect is verified by technical inspection, we replace the U1-AGM at no cost. ### How long does Trojan U1-AGM delivery take? In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships. ### Can I return the Trojan U1-AGM battery if it doesn't fit or doesn't work? Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period. ### Where can I buy the Trojan U1-AGM battery? At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point. ### How many years does this battery last? Expected lifespan of the Trojan U1-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 measurements of the U1-AGM model? Dimensions (length × width × height) are 198×132×171 mm — also written as 198x132x171 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. ### How much does the Trojan U1-AGM battery weigh? It weighs 12 kg. Most of the weight is lead. If you plan to fit it yourself, use gloves and a carrying strap (AGM batteries are slightly heavier than conventional due to the absorbent glass-mat fibre). ### What is the capacity and CCA of the U1-AGM model? Nominal capacity 33 Ah[?cca: and [cold-cranking amps A]] at 12 V. Ah measure the total energy available (autonomy); CCA (also written A in cold or EN under the European standard) measure the instantaneous power to crank the starter motor. A battery with more CCA starts better in winter; one with more Ah keeps accessories on for longer. ### What are the equivalents of the U1-AGM model? 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. ### Which is better: Trojan U1-AGM or an alternative from another brand? This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Exide Technologies) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section. ### What reviews does the U1-AGM model have? The average rating of the Trojan U1-AGM on baterias.com is 4.75/5 from 22 verified customer reviews. The product rating, when available, is shown on the product page next to the stars. You can also check our public Trustpilot profile at shop level (4.4/5 from 10,650+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped devices that need OBD registration after fitting. ## Reviews - **Average rating**: 4.75 / 5 (22 reviews) ## 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 --- *baterias.com — Automotive batteries · 2026-07-15*