# Start-Stop battery Deta DK800 12V 80Ah 800A AGM

![Start-Stop battery Deta DK800 12V 80Ah 800A AGM](https://baterias.com/3629-home_default/battery-deta-dk800-12v-80ah-800a.jpg)

> Deta DK800 Start-Stop battery 12V 80Ah 800A AGM. Dimensions 315×175×190 mm, + terminal on the right. For Start-Stop vehicles.

**Category:** [Car batteries equipped with start stop system](https://baterias.com/gb/car-batteries-equipped-with-start-stop-system) → [Deta](https://baterias.com/gb/deta)

- **Canonical URL**: https://baterias.com/gb/battery-deta-dk800-12v-80ah-800a
- **Language**: en-GB
- **Brand**: Deta
- **Reference**: BCOM-DETA-DK800
- **EAN**: 3661024025720
- **MPN**: DK800
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | DETA |
| Reference | DK800 |
| Model | DETA AGM |
| Voltage (V) | 12 V |
| Largo | 315 mm |
| Ancho | 175 mm |
| Alto | 190 mm |
| Peso | 23.1 kg |
| Tecnología | AGM |
| EAN | 3661024025720 |
| Terminal layout | Positive terminal on the right |
| Hold down | B13 |
| Cold cranking amps (EN) | 800 A |
| Capacity (C20) | 80 Ah (c20) |
| Case type | L04 |

## Quick description

**Deta DK800 12V 80Ah 800A** is a battery designed specifically for Start-Stop vehicles. Withstands up to 3× more start cycles than a conventional battery and maintains performance with BMS and regenerative braking systems.

## Why this Start-Stop battery?

- **Designed for Start-Stop** built for the intensive cycling of modern cars
- **2 to 3 times longer life** vs fitting a cheap conventional battery
- **Fast recovery** recharges in minutes once the engine is running

🔌 Voltage
12 V

⚡ Capacity
80 Ah C20

🔋 Cold cranking
800 A EN-1

📏 Dimensions
315×175×190 mm

⚙️ Technology
AGM

🧭 Polarity
Positive on the right

⚖️ Weight
23,1 kg

🏷️ Model
DETA AGM

## Description

## Start-Stop battery Deta DK800 80Ah 800A 12V

12*V* Voltage
80*Ah* Capacity
800*A* Cold cranking
23.10*kg* Weight

Designed for cars with Start-Stop, regenerative braking and heavy electrical loads, the **Deta DK800** combines **80 Ah** and **800 A** of cold cranking current (EN) with AGM construction able to withstand hundreds of starts a day. Measuring 315 × 175 × 190 mm and the positive terminal on the right, it is the direct replacement for Start-Stop cars fitted from the factory with a 80 Ah battery of this format.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Fast recharge on the move thanks to low internal resistance.
- Keeps comfort loads running with the engine off at the lights.
- Direct replacement for the original Start-Stop battery.

### What the Deta DK800 is for

The Deta DK800 is designed for cars with Start-Stop, regenerative braking and heavy electrical loads. If your car was fitted with an AGM or EFB battery, always replace it with the same technology: a conventional model would degrade within months. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 23.10 kg and B13 hold-down.

### Dimensions, polarity and mounting

In terms of format, the Deta DK800 measures 315 × 175 × 190 mm (length × width × height) and weighs 23.10 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B13 hold-down, 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.

### Deta: the maker behind the DK800

Deta is the German brand of the Exide group: batteries built with original-equipment technology and a very complete range for cars, Start-Stop, trucks, motorcycles and leisure. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

### Technology inside the Deta DK800

The DK800 is one of the Deta references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue.
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.

### Care and maintenance

If the vehicle only does very short trips, a periodic maintenance charge with an AGM/EFB-compatible charger greatly extends its life. Do not mix technologies: a conventional battery in a Start-Stop car degrades within months.

### Manufacturer's warranty

The Deta DK800 comes with the **manufacturer's official warranty**. To keep it valid, always fit the same technology as the original battery (AGM or EFB) and register the replacement if your vehicle requires it.

### When you get it and how to return it

Order **before [[ks:cutoff]]** with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have **[[ks:return_days]] days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.

## Frequently asked questions

### Is the Deta DK800 an AGM battery and what are the benefits of AGM?

Yes. The DK800 from Deta 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 cars with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.

### Is this battery compatible with Start-Stop systems?

Yes. As AGM technology it is designed for Start-Stop vehicles. AGM batteries support advanced Start-Stop and regenerative braking thanks to their higher cycle count. EFB is recommended for basic Start-Stop; AGM is recommended when regenerative braking is also present, thanks to its higher cycle capability. It works straight out of the box — on most modern vehicles registering the battery via OBD is recommended so the alternator automatically applies the optimal charging profile.

### How is the Deta DK800 battery installed in the vehicle?

In most cars 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 cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How long does the Deta DK800 battery last?

Expected lifespan of the Deta DK800 is 5 to 8 years in mild-climate car 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 DK800 model?

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 car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### Does this battery fit my car?

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 DK800 typically fits a wide range of European vehicles thanks to its standard DIN case format.

### Which batteries are equivalent to the Deta DK800?

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 cars. See the "Equivalents" section to view recommended options at the same performance level.

### Why choose AGM instead of EFB for my Start-Stop car?

AGM (Absorbent Glass Mat) technology uses absorbent fibreglass that retains the electrolyte, eliminating leaks and allowing up to 3× more charge/discharge cycles than a conventional battery. It is the recommended option when the car has advanced Start-Stop with regenerative braking (BMW EfficientDynamics, Mercedes Eco, Audi MHEV, Land Rover ECO, Volvo i-Stop). Withstands tilted positions, high vibration and extreme temperatures better than EFB. The Deta DK800 is fully original and meets European EN 50342-6 standards for advanced Start-Stop.

### Do I need to register the Deta DK800 on the car after installation?

On most cars it is not strictly necessary — the alternator detects the new battery and adapts the charge automatically. It is recommended to register the battery via OBD so that the alternator applies the optimal charging profile from the first minute and extends the battery life as much as possible (especially on brands with sophisticated BMS: BMW, Mercedes, Audi, Volvo, Land Rover). Any workshop with an OBD scanner (~10-15 € labour) does it in 5 minutes. DIY apps: VCDS / Carista (VAG), Bimmercode (BMW), iCarsoft. If you do not register, the car will still start correctly — the alternator just takes a few days to adjust the profile. The Deta DK800 ships factory-charged at 80-90% so you can use it straight after fitting.


## Equivalent batteries

- [VARTA F21](https://baterias.com/gb/battery-varta-f21-agm-12v-80ah-800a)
- [TUDOR TK800](https://baterias.com/gb/battery-tudor-tk800-80ah-800a)
- [VARTA LA80](https://baterias.com/gb/battery-varta-la80agm-12v-80ah-800a)
- [EXIDE EK800](https://baterias.com/gb/battery-exide-ek800-12v-80ah-800a)
- [VARTA A6](https://baterias.com/gb/battery-varta-a6-agm-12v-80ah-800a)
- [KRONOBAT EV-80-AGM](https://baterias.com/gb/best-price-battery-12v-80ah-agm-ev-80-agm)

## 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

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*baterias.com — Automotive batteries · 2026-10-14*