# Kronobat PB-45.1F · Car battery 12V 45Ah 330A

![Kronobat PB-45.1F · Car battery 12V 45Ah 330A](https://bateriasonline.es/1760-home_default/kronobat-pb-45-1f.jpg)

> Kronobat PB-45.1F: 45 Ah car battery, 330 A (EN), 238×129×227 mm, positive terminal on the left, B24 case. Equivalent to Exide EB455 and Exide EB457.

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

- **Canonical URL**: https://bateriasonline.es/en/kronobat-pb-45-1f
- **Language**: en
- **Brand**: Kronobat
- **Reference**: BOL-KRONOBAT-PB-45.1F
- **MPN**: PB-45.1F
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Kronobat |
| Range | PREMIUM |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 45 Ah |
| Cold cranking amps (EN) | 330 A |
| Length | 238 mm |
| Width | 129 mm |
| Height | 227 mm |
| Weight | 11.7 kg |
| Polarity | Positive terminal on the left |
| Case size | B24 (238 × 129 × 227 mm) |

## Quick description

Kronobat PB-45.1F: car battery with 12 V, 45 Ah and 330 A cold cranking current, case size B24 (238 × 129 × 227 mm), with the positive terminal on the left. With the positive terminal on the right, the exact counterpart is the Kronobat PB-45.0F.

## Description

## Who the Kronobat PB-45.1F is for

The Kronobat PB-45.1F 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 45 Ah battery, the PB-45.1F is a direct replacement.
At 45 Ah it is a small size: the usual choice for petrol superminis and city cars with little equipment. The PB-45.1F belongs to the Kronobat PREMIUM range. [The full range of Kronobat batteries](https://bateriasonline.es/en/kronobat-batteries)

## Kronobat PB-45.1F vs SD-45.1T, PB-45.0F and PB-40.1F: differences

The real differences between the PB-45.1F and the closest Kronobat models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Kronobat PB-45.1F (this one) | 45 Ah | 330 A | 238 × 129 × 227 | left | 11.7 kg |
| Kronobat SD-45.1T | 45 Ah | 300 A | 219 × 135 × 225 | left | 10.8 kg |
| Kronobat PB-45.0F | 45 Ah | 330 A | 238 × 129 × 227 | right | 11.7 kg |
| Kronobat PB-40.1F | 40 Ah | 330 A | 187 × 127 × 227 | left | 10.2 kg |

- Kronobat SD-45.1T: the same capacity, 30 A less cranking power, a different case (219 × 135 × 225 mm).
- If the positive terminal of your battery is on the other side, the one you need is the Kronobat PB-45.0F (positive terminal on the right).
- Kronobat PB-40.1F: 5 Ah less, the same cranking power, a different case (187 × 127 × 227 mm).

## Kronobat PB-45.1F codes and part numbers

Look for any of these PB-45.1F codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | PB-45.1F |
|---|---|
| Case size (EN) | B24 |
| Not to be confused with | Kronobat PB-45.0F (45 Ah, 330 A, positive terminal on the right), Kronobat PB-40.1F (40 Ah, 330 A) |

## Equivalents and alternatives to the Kronobat PB-45.1F

Same dimensions and polarity as the PB-45.1F, with similar capacity and cranking power; as a conventional battery, the PB-45.1F 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 B33 | Lead-acid | 45 Ah | 330 A | 238 × 129 × 227 |
| Varta B34 | Lead-acid | 45 Ah | 330 A | 238 × 129 × 227 |
| Exide EB455 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |
| Exide EB457 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |
| Tudor TB455 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |
| Tudor TB457 | Lead-acid | 45 Ah | 330 A | 237 × 127 × 227 |

## What to look at before buying the PB-45.1F

- Measure the space: the PB-45.1F takes up 238 × 129 × 227 mm (European case size B24).
- Polarity of the PB-45.1F: positive terminal on the left (if yours has it on the other side, the cables will not reach).
- With 45 Ah, the PB-45.1F replaces an original battery of that capacity or slightly less.
- Cold cranking: 330 A (EN), equal to or higher than the original.
- If your car has Start-Stop, the PB-45.1F is not the right one: it needs an EFB or an AGM.

## Lead-acid technology in the PB-45.1F

The PB-45.1F is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the PB-45.1F needs no special registration: just connect it.

## Frequently asked questions about the Kronobat PB-45.1F

### Kronobat PB-45.1F or SD-45.1T?

Compared with the PB-45.1F, the Kronobat SD-45.1T has 30 A less cranking power. The PB-45.1F cranks harder; the SD-45.1T is only a good option if your original battery says 300 A or less. Mind the space: the SD-45.1T measures 219 × 135 × 225 mm.

### What is the difference between the Kronobat PB-45.1F and the PB-45.0F?

They are the same battery with the terminals swapped: positive terminal on the left on the PB-45.1F, positive terminal on the right on the PB-45.0F. Look at your current battery with the terminals facing you and pick the one that matches.

### Can the Kronobat PB-45.1F be used in a car with Start-Stop?

No. The PB-45.1F is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.

### How much does the Kronobat PB-45.1F weigh?

The PB-45.1F weighs 11.7 kg. For reference, the Kronobat SD-45.1T (45 Ah) weighs 10.8 kg.

### Which battery is equivalent to the Kronobat PB-45.1F?

With the same dimensions, polarity and similar capacity you have the Varta B33, Varta B34 and Exide EB455. As the PB-45.1F is a conventional battery, an EFB or AGM of the same size also works.

### What case size is the Kronobat PB-45.1F?

Case size B24: 238 × 129 × 227 mm. The PB-45.1F fits any standard B24 battery tray such as the Varta B33.

### Which charger does the Kronobat PB-45.1F need?

An automatic lead-acid charger with cut-off or maintenance mode, rated at 10 to 20% of its capacity in amps. If it is a vented type, check the electrolyte level and top up only with distilled water.

## More batteries to compare with the PB-45.1F

- [Other car batteries](https://bateriasonline.es/en/car-batteries)
- [The whole Kronobat range](https://bateriasonline.es/en/kronobat-batteries)
- [Varta B33](https://bateriasonline.es/en/varta-b33) · 45 Ah, 330 A, 238×129×227 mm
- [Varta B34](https://bateriasonline.es/en/varta-b34) · 45 Ah, 330 A, 238×129×227 mm

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