# Marine battery Varta LA80 12V 77Ah AGM ![Marine battery Varta LA80 12V 77Ah AGM](https://baterias.com/931-home_default/battery-varta-la80agm-12v-80ah-800a.jpg) > Varta LA80 marine battery 12V 80Ah 800A AGM. Official Varta Distributor. Professional Dual Purpose AGM range. Cranking and house duties. **Category:** [Boat Batteries](https://baterias.com/gb/boat-batteries) β†’ [VARTA](https://baterias.com/gb/varta) - **Canonical URL**: https://baterias.com/gb/battery-varta-la80agm-12v-80ah-800a - **Language**: en-GB - **Brand**: VARTA - **Reference**: BCOM-VARTA-LA80 - **EAN**: 4016987166994 - **MPN**: LA80 - **Price**: 154,80 € - **Stock**: In stock ## Technical specifications | Feature | Value | |---|---| | Brand | VARTA | | Reference | LA80 | | Model | Professional Deep Cycle AGM | | Voltage (V) | 12 V | | Largo | 315 mm | | Ancho | 175 mm | | Alto | 190 mm | | Peso | 22.76 kg | | TecnologΓ­a | AGM | | EAN | 4016987166994 | | Terminal layout | Positive terminal on the right | | Terminal type | 1 | | Hold down | B13 | | Cold cranking amps (EN) | 800 A | | Capacity (C20) | 80 Ah (c20) | | Capacity (C10) | 77 Ah (c10) | | Capacity (C5) | 75 Ah (c5) | | ETN | 840080080C542 | ## Quick description **Varta LA80 12V 80Ah 800A** is a marine battery, vibration- and deep-discharge resistant, suitable both for outboard engine starting and for onboard auxiliary services (navigation lights, GPS, sonar, fridge). Sealed and maintenance-free. ## Why this marine battery? - **Marine design** built for boat swell and vibration - **Dual function** starts the engine and powers onboard services - **Sealed and safe** maintenance-free even when the boat rolls πŸ”Œ Voltage 12 V ⚑ Capacity 80 Ah C20 πŸ”‹ Cold cranking 800 A EN-1 πŸ“ Dimensions 315Γ—175Γ—190 mm βš™οΈ Technology AGM 🧭 Polarity Positive on the right βš–οΈ Weight 22,56 kg 🏷️ Model Professional Dual Purpose AGM ## Description ## Varta LA80 Professional Deep Cycle AGM 80Ah 800A 12V Battery 12*V* Voltage 80*Ah* Capacity 800*A* Cold cranking 22.76*kg* Weight The **Varta LA80 battery** is the **12 V**, **80 Ah** model delivering **800 A** of cold cranking power (EN), from Varta's **Professional Deep Cycle AGM** range, designed for motorhomes, boats and auxiliary power equipment. It replaces the original battery in vehicles with the 315 Γ— 175 Γ— 190 mm format without any modifications: the same 80 Ah capacity and the same terminal layout (positive on the right). - More on-board running time than a conventional starter battery. - Withstands deep discharges and repeated recharging without degrading. - Ideal for motorhomes, boating and leisure power. - Dual cycle: it both starts the engine and powers auxiliary equipment. ### Applications of the Varta LA80 battery Designed for motorhomes, boats and auxiliary power equipment, the Varta LA80 is a direct replacement when you need its same 80 Ah capacity and format. Check that it matches your current battery in dimensions, terminals and hold-down: this reference weighs 22.76 kg and has a type 1 terminal and a B13 hold-down. ### Format and fitting of the Varta LA80 In terms of format, the Varta LA80 measures 315 Γ— 175 Γ— 190 mm (length Γ— width Γ— height) and weighs 22.76 kg. The positive terminal on the right determines which side the cables sit on: it is the detail that causes the most buying mistakes, so it is worth checking before you order. It uses a B13 hold-down and a type 1 terminal, the system that anchors it to the vehicle's battery tray. Before replacing it, measure the space your current battery occupies: if it matches on all three dimensions and on terminal position, the swap is direct and needs no adapters. ### The Varta LA80 and the Professional Deep Cycle AGM range The **Professional Deep Cycle AGM** range consists of deep-cycle AGM batteries designed to power equipment for hours on end: fridge, lights, electric motor or on-board electronics in boats and motorhomes. They take the deep discharges and repeated recharging that would ruin a starter battery, and being AGM they need no maintenance and carry no risk of spillage. The chemistry is built to be drained and recharged many times over β€” the typical pattern in leisure and boating use β€” where an ordinary car battery would sulphate within weeks. It gives you running time for the on-board equipment and the cranking power to turn the engine over when needed. ### Why choose a Varta battery When a workshop recommends Varta, it is not down to marketing: it is one of the brands with the lowest return rates in the sector, with application coverage spanning practically the entire European fleet, from the city car to the commercial vehicle. Varta combines more than a century of experience with the industrial production of Clarios: it is the battery many manufacturers fit as standard and one of the most recommended by workshops. Like every lead-acid battery, it is 100% recyclable. Varta's production combines automated lines with verification of more than 100 parameters per unit; that traceability is what underpins its reputation for reliable starting throughout the battery's life. ### Manufacturer's warranty The Varta LA80 battery comes with the **official manufacturer warranty**. ### Care and maintenance In leisure applications, avoiding discharges below 50% of capacity multiplies the number of cycles the battery will deliver. A suitable charger and, where possible, a solar regulator keep it healthy through the quieter seasons. To extend its life, recharge it as soon as possible after each discharge and never leave it flat over the winter. A trickle charger is the best investment for getting many cycles out of it. ### Technical sheet Download the official technical sheet for this battery with all the manufacturer data. [Download technical sheet (PDF)](/fichastecnicas/data-sheet-battery-varta-la80-80ah-800a-12v-en.pdf) ## Frequently asked questions ### Is the Varta LA80 an AGM battery and what are the benefits of AGM? Yes. The LA80 from Varta 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 boats with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions. ### How do I fit the LA80 model in my boat? In most boats 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 (βˆ’) 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 β€” match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). On boats with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### How long does the Varta LA80 battery last? Expected lifespan of the Varta LA80 is 5 to 8 years in mild-climate boat 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 LA80 model? Dimensions (length Γ— width Γ— height) are 315Γ—175Γ—190 mm β€” also written as 315x175x190 mm and correspond to the European L4 case size β€” following the European DIN standard. Always measure the space in your boat before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Is the LA80 valid for my vehicle? Three options to confirm: 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; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year β€” we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The LA80 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### Which batteries are equivalent to the Varta LA80? 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 β€” an EFB cannot be replaced with a conventional battery in Start-Stop boats. 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 β€” automotive battery specialists since 2015. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-10*