# Kronobat SD-41.0B · Car battery 12V 41Ah 360A

![Kronobat SD-41.0B · Car battery 12V 41Ah 360A](https://bateriasonline.es/2293-home_default/kronobat-sd-41-0b.jpg)

> Kronobat SD-41.0B: 41 Ah car battery, 360 A (EN), 207×175×175 mm, positive terminal on the right, LB1 case. Equivalent to Exide EC412.

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

- **Canonical URL**: https://bateriasonline.es/en/kronobat-sd-41-0b
- **Language**: en
- **Brand**: Kronobat
- **Reference**: BOL-KRONOBAT-SD-41.0B
- **MPN**: SD-41.0B
- **Price**: 44,98 € (VAT incl., Spain)
- **Last updated**: 2026-11-07

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Kronobat |
| Range | STANDARD |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 41 Ah |
| Cold cranking amps (EN) | 360 A |
| Length | 207 mm |
| Width | 175 mm |
| Height | 175 mm |
| Weight | 10.9 kg |
| Polarity | Positive terminal on the right |
| Case size | LB1 (207 × 175 × 175 mm) |

## Quick description

Kronobat SD-41.0B: car battery with 12 V, 41 Ah and 360 A cold cranking current, case size LB1 (207 × 175 × 175 mm), with the positive terminal on the right.

## Description

## Who the Kronobat SD-41.0B is for

The Kronobat SD-41.0B is made for petrol and diesel cars without automatic engine stop. Its job is to start the engine in the cold with margin to spare and keep the car's electronics powered.
At 41 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. The SD-41.0B belongs to the Kronobat STANDARD range. [See all Kronobat batteries](https://bateriasonline.es/en/kronobat-batteries)

## Kronobat SD-41.0B codes and part numbers

This is how the Kronobat SD-41.0B appears on the label and in parts catalogues:

| Commercial reference | SD-41.0B |
|---|---|
| Case size (EN) | LB1 |
| Not to be confused with | Kronobat SD-40.0B (40 Ah, 340 A) |

## Kronobat SD-41.0B vs PB-44.0B and MS-52.0: which one to choose?

The real differences between the SD-41.0B and the closest Kronobat models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Kronobat SD-41.0B (this one) | 41 Ah | 360 A | 207 × 175 × 175 | right | 10.9 kg |
| Kronobat PB-44.0B | 44 Ah | 440 A | 207 × 175 × 175 | right | 11.5 kg |
| Kronobat MS-52.0 | 52 Ah | 520 A | 207 × 175 × 175 | right | 12.7 kg |

- Kronobat PB-44.0B: 3 Ah more, 80 A more cranking power, the same LB1 case.
- Kronobat MS-52.0: 11 Ah more, 160 A more cranking power, the same LB1 case.

## Equivalents and alternatives to the Kronobat SD-41.0B

Same dimensions and polarity as the SD-41.0B, with similar capacity and cranking power; as a conventional battery, the SD-41.0B 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) |
|---|---|---|---|---|
| Varta A17 | Lead-acid | 41 Ah | 360 A | 207 × 175 × 175 |
| Exide EC412 | Lead-acid | 41 Ah | 370 A | 207 × 175 × 175 |
| Tudor TC412 | Lead-acid | 41 Ah | 370 A | 207 × 175 × 175 |
| Fulmen FC412 | Lead-acid | 41 Ah | 370 A | 207 × 175 × 175 |
| Deta DC412 | Lead-acid | 41 Ah | 370 A | 207 × 175 × 175 |
| Exide EB442 | Lead-acid | 44 Ah | 420 A | 207 × 175 × 175 |

## Lead-acid technology in the SD-41.0B

Inside, the SD-41.0B is classic lead-acid: liquid electrolyte and lead plates. If the SD-41.0B is left discharged for weeks it sulphates: a maintenance charger prevents this.

## Before ordering the SD-41.0B, check this

- If your car has Start-Stop, the SD-41.0B is not the right one: it needs an EFB or an AGM.
- The SD-41.0B delivers 360 A cold cranking (EN standard); do not go below what your original battery states.
- With 41 Ah, the SD-41.0B replaces an original battery of that capacity or slightly less.
- The SD-41.0B has the positive terminal on the right: compare it with your current battery.
- Length, width and height of the SD-41.0B: 207 × 175 × 175 mm (European case size LB1).

## Frequently asked questions about the Kronobat SD-41.0B

### Kronobat SD-41.0B or PB-44.0B?

Compared with the SD-41.0B, the Kronobat PB-44.0B has 3 Ah more and 80 A more cranking power. If your current battery says 440 A or more, choose the PB-44.0B; if it says 360 A or less, the SD-41.0B is enough. Both measure 207 × 175 × 175 mm, so they fit the same tray.

### Can the Kronobat SD-41.0B be used in a car with Start-Stop?

No. The SD-41.0B is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.

### How much does the Kronobat SD-41.0B weigh?

The SD-41.0B weighs 10.9 kg. For reference, the Kronobat PB-44.0B (44 Ah) weighs 11.5 kg.

### Which battery is equivalent to the Kronobat SD-41.0B?

With the same dimensions, polarity and similar capacity you have the Varta A17, Exide EC412 and Tudor TC412. As the SD-41.0B is a conventional battery, an EFB or AGM of the same size also works.

### What case size is the Kronobat SD-41.0B?

Case size LB1: 207 × 175 × 175 mm. The SD-41.0B fits any standard LB1 battery tray such as the Varta A17.

### Which side is the positive terminal on the Kronobat SD-41.0B?

The SD-41.0B has the positive terminal on the right, looking at the battery from its long side with the terminals closest to you.

## Other options if you are unsure about the SD-41.0B

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [Full Kronobat catalogue](https://bateriasonline.es/en/kronobat-batteries)
- [Tudor TB442](https://bateriasonline.es/en/tudor-tb442) · 44 Ah, 420 A, 207×175×175 mm

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