Specifications
| Brand | VARTA |
|---|---|
| Part number | LA80 |
| Voltage (V) | 12 |
| Capacity (C20) | 80Ah (c20) |
| Capacity (C10) | 77Ah (c10) |
| Capacity (C5) | 75Ah (c5) |
| Technology | AGM |
| Length | 315.00 mm |
| Width | 175.00 mm |
Me llegó la batería en menos de 24 horas. Recomendable
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.

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 × 175 × 190 mm format without any modifications: the same 80 Ah capacity and the same terminal layout (positive on the right).
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.
In terms of format, the Varta LA80 measures 315 × 175 × 190 mm (length × width × 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 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 — the typical pattern in leisure and boating use — 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.
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.
The Varta LA80 battery comes with the official manufacturer warranty.
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.
Download the official technical sheet for this battery with all the manufacturer data.
Data sheet
Specific References
Me llegó la batería en menos de 24 horas. Recomendable
| Brand | Varta · see all batteries Varta |
|---|---|
| Manufacturer range | Professional Deep Cycle AGM |
| Manufacturer reference (MPN) | LA80 |
| ETN code | 840080080C542 |
| EAN-13 barcode | 4016987166994 |
| European case size (EN 50342-2) | L4 |
| Dimensions (length × width × height) | 315 × 175 × 190 mm (315x175x190) |
Guide to replace a marine battery (cranking or house) in 20-30 minutes. Moisture and vibration in marine environments require reinforced hold-downs and sealed copper terminals.
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Usually under the passenger bench, engine room or a dedicated ventilated compartment. Verify the compartment is dry and well ventilated before opening.
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Marine batteries are heavy (15-50 kg). If it has rope handles, use them; otherwise have a carry strap ready. Secure the new one with metal hold-downs (not plastic) to resist sea-state vibration.
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Apply dielectric grease on terminals to prevent salt-air corrosion. Check the engine charging circuit delivers 13.8-14.4 V at 2,000 rpm.
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.
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 (−) 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 boats with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
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.
Dimensions (length × width × height) are 315×175×190 mm — also written as 315x175x190 mm and correspond to the European L4 case size — 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.
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 — 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.
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 boats. See the "Equivalents" section to view recommended options at the same performance level.
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