# Varta A16 · Car battery 12V 40Ah 340A

![Varta A16 · Car battery 12V 40Ah 340A](https://bateriasonline.es/1536-home_default/varta-a16.jpg)

> Varta A16 (ETN 540406034): 40 Ah car battery, 340 A (EN), 175×175×190 mm, positive terminal on the right, L0 case. Equivalent to Exide EC400.

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

- **Canonical URL**: https://bateriasonline.es/en/varta-a16
- **Language**: en
- **Brand**: Varta
- **Reference**: BOL-VARTA-A16
- **EAN**: 4016987143599
- **MPN**: A16
- **Price**: 63,80 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Varta |
| Range | VARTA BLACK dynamic |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 40 Ah |
| Cold cranking amps (EN) | 340 A |
| Length | 175 mm |
| Width | 175 mm |
| Height | 190 mm |
| Weight | 9.88 kg |
| Polarity | Positive terminal on the right |
| Case size | L0 (175 × 175 × 190 mm) |
| ETN code | 540406034 |

## Quick description

The Varta A16 (ETN 540 406 034, also written A 16 or 540406034) is a car battery with 12 V, 40 Ah and 340 A cold cranking current, case size L0 (175 × 175 × 190 mm), with the positive terminal on the right.

## Description

## Where the Varta A16 fits

The Varta A16 is a starter battery for cars without Start-Stop: it delivers the current the starter motor needs and then powers lights, control units and audio with the engine off. If your car has no Start-Stop and had a 40 Ah battery, the A16 is a direct replacement.
At 40 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. The A16 belongs to the Varta VARTA BLACK dynamic range. [More Varta batteries](https://bateriasonline.es/en/varta-batteries)

## Part numbers and codes for the Varta A16

Look for any of these A16 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | A16 (A 16) |
|---|---|
| ETN code | 540406034 (also 540 406 034) |
| EAN | 4016987143599 |
| Case size (EN) | L0 |
| Case size according to Varta | H3/LN0 |
| UK code | 202 |
| Base hold-down | B13 |
| Also known as | Varta A 16 · Varta 540406034 · Varta 540 406 034 |
| Not to be confused with | Varta A17 (41 Ah, 360 A), Varta F16 (80 Ah, 740 A), Varta A13 (40 Ah, 330 A) |

## Varta A16 vs B36 and B19

Torn between the A16 and another similar Varta? This is what changes:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Varta A16 (this one) | 40 Ah | 340 A | 175 × 175 × 190 | right | 9.88 kg |
| Varta B36 | 44 Ah | 420 A | 175 × 175 × 190 | right | 10.3 kg |
| Varta B19 | 45 Ah | 400 A | 207 × 175 × 190 | right | 11.46 kg |

- Varta B36: 4 Ah more, 80 A more cranking power, the same L0 case.
- Varta B19: 5 Ah more, 60 A more cranking power, a different case (207 × 175 × 190 mm).

## Equivalents and alternatives to the Varta A16

Batteries that fit the A16's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the A16.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Kronobat SD-40.0B | Lead-acid | 40 Ah | 340 A | 175 × 175 × 190 |
| Exide EC400 | Lead-acid | 40 Ah | 320 A | 175 × 175 × 190 |
| Tudor TC400 | Lead-acid | 40 Ah | 320 A | 175 × 175 × 190 |
| Fulmen FC400 | Lead-acid | 40 Ah | 320 A | 175 × 175 × 190 |
| Deta DC400 | Lead-acid | 40 Ah | 320 A | 175 × 175 × 190 |

## Inside the A16: lead-acid technology

The A16 is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the A16 needs no special registration: just connect it.

## Check this before ordering the Varta A16

- If your car has Start-Stop, the A16 is not the right one: it needs an EFB or an AGM.
- The A16 delivers 340 A cold cranking (EN standard); do not go below what your original battery states.
- Capacity of the A16: 40 Ah; the same as your current battery or slightly more is fine.
- Polarity of the A16: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- The A16 needs 175 × 175 × 190 mm of space (European case size L0): measure it with the hold-down clamp in place.

## Frequently asked questions about the Varta A16

### A16 or B36: which one suits me?

Compared with the A16, the Varta B36 has 4 Ah more and 80 A more cranking power. If your current battery says 420 A or more, choose the B36; if it says 340 A or less, the A16 is enough. Both measure 175 × 175 × 190 mm, so they fit the same tray.

### What does the code 540 406 034 on the Varta A16 mean?

It is its ETN (European Type Number), also written 540406034. The first three digits (540) encode voltage and capacity: 12 V and 40 Ah (5xx = under 100 Ah, 6xx = 100 to 199 Ah, 7xx = 200 Ah or more). The middle group (406) identifies the specific model within that capacity, and the last three digits (034) multiplied by 10 give the cold cranking current: 340 A.

### Can the Varta A16 be used in a car with Start-Stop?

No. The A16 is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.

### How much does the Varta A16 weigh?

9.88 kg, with 40 Ah of capacity. For reference, the Varta B36 (44 Ah) weighs 10.3 kg.

### Which battery is equivalent to the Varta A16?

With the same dimensions, polarity and similar capacity you have the Kronobat SD-40.0B, Exide EC400 and Tudor TC400. As the A16 is a conventional battery, an EFB or AGM of the same size also works.

### What case size is the Varta A16?

Case size L0: 175 × 175 × 190 mm (Varta lists it as H3/LN0). The A16 fits any standard L0 battery tray such as the Kronobat SD-40.0B.

### Which side is the positive terminal on the Varta A16?

On the A16, the positive terminal is on the right with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

## More batteries to compare with the A16

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [The whole Varta range](https://bateriasonline.es/en/varta-batteries)
- [Kronobat SD-40.0B](https://bateriasonline.es/en/kronobat-sd-40-0b) · 40 Ah, 340 A, 175×175×190 mm
- [Exide EC400](https://bateriasonline.es/en/exide-ec400) · 40 Ah, 320 A, 175×175×190 mm

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