# Deta DK143 · Auxiliary battery 12V 14Ah 80A

![Deta DK143 · Auxiliary battery 12V 14Ah 80A](https://bateriasonline.es/4134-home_default/deta-dk143.jpg)

> Deta DK143: 14 Ah auxiliary battery, 80 A (EN), 150×100×100 mm, AGM. Equivalent to Exide EK143 and Tudor TK143. Ask for a no-obligation quote.

**Category:** [Auxiliary batteries (back-up and in-vehicle service)](https://bateriasonline.es/en/auxiliary-backup-batteries) → [Deta](https://bateriasonline.es/en/deta-batteries)

- **Canonical URL**: https://bateriasonline.es/en/deta-dk143
- **Language**: en
- **Brand**: Deta
- **Reference**: BOL-DETA-DK143
- **EAN**: 3661024026383
- **MPN**: DK143
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Deta |
| Range | DETA Start-Stop Auxiliary |
| Application | Auxiliary and back-up use |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 14 Ah |
| Cold cranking amps (EN) | 80 A |
| Length | 150 mm |
| Width | 100 mm |
| Height | 100 mm |
| Weight | 4.2 kg |
| Terminal layout | 3 |
| Terminal type | Screwed/Lug |

## Quick description

Deta DK143: auxiliary battery (AGM) with 12 V, 14 Ah and 80 A cold cranking current, measuring 150 × 100 × 100 mm.

## Description

## Who the Deta DK143 is for

The Deta DK143 is an auxiliary vehicle battery: it powers back-up functions such as Start-Stop, electric steering or the emergency system while the main battery starts the engine. Without it, Start-Stop or back-up warnings appear on the dashboard.
The DK143 belongs to the Deta DETA Start-Stop Auxiliary range. [More Deta batteries](https://bateriasonline.es/en/deta-batteries)

## Equivalents and alternatives to the Deta DK143

As the DK143 is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EK143 | AGM | 14 Ah | 80 A | 150 × 100 × 100 |
| Tudor TK143 | AGM | 14 Ah | 80 A | 150 × 100 × 100 |
| Fulmen FK143 | AGM | 14 Ah | 80 A | 150 × 100 × 100 |

## Deta DK143 vs DK111 and DK131: which one to choose?

The real differences between the DK143 and the closest Deta models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Weight |
|---|---|---|---|---|
| Deta DK143 (this one) | 14 Ah | 80 A | 150 × 100 × 100 | 4.2 kg |
| Deta DK111 | 11 Ah | 150 A | 150 × 90 × 130 | 3.9 kg |
| Deta DK131 | 13 Ah | 200 A | 150 × 90 × 145 | 4.5 kg |

- Deta DK111: 3 Ah less, 70 A more cranking power, a different case (150 × 90 × 130 mm).
- Deta DK131: 1 Ah less, 120 A more cranking power, a different case (150 × 90 × 145 mm).

## Inside the DK143: AGM technology

The DK143 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the DK143 can be fitted in the boot or under a seat with no risk of spills.

## Check this before ordering the Deta DK143

- The DK143 needs 150 × 100 × 100 mm of space: measure it with the hold-down clamp in place.
- Capacity of the DK143: 14 Ah; the same as your current battery or slightly more is fine.
- Check the EN amps on your battery: if it says 80 A or less, the DK143 covers your engine.

## Deta DK143 codes and part numbers

Look for any of these DK143 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | DK143 |
|---|---|
| EAN | 3661024026383 |
| Terminal type | Screwed/Lug |

## Frequently asked questions about the Deta DK143

### Deta DK143 or DK111?

Compared with the DK143, the Deta DK111 has 3 Ah less and 70 A more cranking power. If your current battery says 150 A or more, choose the DK111; if it says 80 A or less, the DK143 is enough. Mind the space: the DK111 measures 150 × 90 × 130 mm.

### How much does the Deta DK143 weigh?

The DK143 weighs 4.2 kg. For reference, the Deta DK111 (11 Ah) weighs 3.9 kg.

### Which battery is equivalent to the Deta DK143?

Only other AGM batteries with its dimensions and polarity: Exide EK143, Tudor TK143 and Fulmen FK143. Neither an EFB nor a conventional battery replaces the DK143.

### What warnings does the car give when the auxiliary battery fails?

Typically Start-Stop unavailable, back-up battery fault or emergency call system fault. The car still starts, but those functions are disabled.

## More batteries to compare with the DK143

- [All auxiliary batteries (back-up and in-vehicle service)](https://bateriasonline.es/en/auxiliary-backup-batteries)
- [More Deta models](https://bateriasonline.es/en/deta-batteries)
- [Exide EK143](https://bateriasonline.es/en/exide-ek143) · 14 Ah, 80 A, 150×100×100 mm
- [Tudor TK143](https://bateriasonline.es/en/tudor-tk143) · 14 Ah, 80 A, 150×100×100 mm

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