# Deta DA406 · Car battery 12V 40Ah 350A

![Deta DA406 · Car battery 12V 40Ah 350A](https://bateriasonline.es/3037-home_default/deta-da406.jpg)

> Deta DA406: 40 Ah car battery, 350 A (EN), 187×127×220 mm. Equivalent to Exide EA406 and Tudor TA406. Price on request: ask for a free quote.

**Category:** [Car batteries](https://bateriasonline.es/en/car-batteries) → [Deta](https://bateriasonline.es/en/deta-batteries)

- **Canonical URL**: https://bateriasonline.es/en/deta-da406
- **Language**: en
- **Brand**: Deta
- **Reference**: BOL-DETA-DA406
- **EAN**: 3661024026918
- **MPN**: DA406
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Deta |
| Range | DETA Senator3 |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 40 Ah |
| Cold cranking amps (EN) | 350 A |
| Length | 187 mm |
| Width | 127 mm |
| Height | 220 mm |
| Weight | 9.3 kg |
| Terminal layout | J0 |

## Quick description

The Deta DA406 is a car battery with 12 V, 40 Ah and 350 A cold cranking current, measuring 187 × 127 × 220 mm.

## Description

## Where the Deta DA406 fits

The Deta DA406 is made for petrol and diesel cars without automatic engine stop. The DA406 covers the daily routine of a car without automatic engine stop: cold starts, short trips and loads with the ignition off.
At 40 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. The DA406 belongs to the Deta DETA Senator3 range. [The full range of Deta batteries](https://bateriasonline.es/en/deta-batteries)

## Deta DA406 codes and part numbers

This is how the Deta DA406 appears on the label and in parts catalogues:

| Commercial reference | DA406 |
|---|---|
| EAN | 3661024026918 |
| Not to be confused with | Deta DA456 (45 Ah, 390 A) |

## Deta DA406 vs DB356 and DB356A

How the DA406 compares with Deta batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Deta DA406 (this one) | 40 Ah | 350 A | 187 × 127 × 220 | 9.3 kg |
| Deta DB356 | 35 Ah | 240 A | 187 × 127 × 220 | 8.9 kg |
| Deta DB356A | 35 Ah | 240 A | 187 × 127 × 220 | 8.9 kg |

- Deta DB356: 5 Ah less, 110 A less cranking power, the same dimensions.
- Deta DB356A: 5 Ah less, 110 A less cranking power, the same dimensions.

## Equivalents and alternatives to the Deta DA406

Same dimensions and polarity as the DA406, with similar capacity and cranking power; as a conventional battery, the DA406 can also be replaced by an EFB or AGM of the same size if you want more cycles.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EA406 | Lead-acid | 40 Ah | 350 A | 187 × 127 × 220 |
| Tudor TA406 | Lead-acid | 40 Ah | 350 A | 187 × 127 × 220 |
| Fulmen FA406 | Lead-acid | 40 Ah | 350 A | 187 × 127 × 220 |

## Inside the DA406: lead-acid technology

Inside, the DA406 is classic lead-acid: liquid electrolyte and lead plates. If the DA406 is left discharged for weeks it sulphates: a maintenance charger prevents this.

## What to look at before buying the DA406

- If your car has Start-Stop, the DA406 is not the right one: it needs an EFB or an AGM.
- Check the EN amps on your battery: if it says 350 A or less, the DA406 covers your engine.
- Your current battery should say about 40 Ah; a little more is also fine.
- Measure the space: the DA406 takes up 187 × 127 × 220 mm.

## Frequently asked questions about the Deta DA406

### Deta DA406 or DB356?

Compared with the DA406, the Deta DB356 has 5 Ah less and 110 A less cranking power. The DA406 cranks harder; the DB356 is only a good option if your original battery says 240 A or less. Both measure 187 × 127 × 220 mm, so they fit the same tray.

### Can the Deta DA406 be used in a car with Start-Stop?

No. The DA406 is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.

### How much does the Deta DA406 weigh?

The DA406 weighs 9.3 kg. For reference, the Deta DB356 (35 Ah) weighs 8.9 kg.

### Which battery is equivalent to the Deta DA406?

With the same dimensions, polarity and similar capacity you have the Exide EA406, Tudor TA406 and Fulmen FA406. As the DA406 is a conventional battery, an EFB or AGM of the same size also works.

### Does the new battery need to be registered in the car?

In cars with energy management (common since 2010) it is worth registering the battery in the control unit so it adjusts charging. In older cars you just connect it.

## Keep comparing: alternatives to the DA406

- [Other car batteries](https://bateriasonline.es/en/car-batteries)
- [More Deta models](https://bateriasonline.es/en/deta-batteries)
- [Exide EA406](https://bateriasonline.es/en/exide-ea406) · 40 Ah, 350 A, 187×127×220 mm
- [Tudor TA406](https://bateriasonline.es/en/tudor-ta406) · 40 Ah, 350 A, 187×127×220 mm

---
*bateriasonline.es — Batteries and accessories · 2026-11-10*