# Kronobat SD-45.0T · Car battery 12V 45Ah 300A

![Kronobat SD-45.0T · Car battery 12V 45Ah 300A](https://bateriasonline.es/2248-home_default/kronobat-sd-45-0t.jpg)

> Kronobat SD-45.0T: 45 Ah car battery, 300 A (EN), 219×135×225 mm, positive terminal on the right. Equivalent to Exide EB450 and Tudor TB450.

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

- **Canonical URL**: https://bateriasonline.es/en/kronobat-sd-45-0t
- **Language**: en
- **Brand**: Kronobat
- **Reference**: BOL-KRONOBAT-SD-45.0T
- **MPN**: SD-45.0T
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Kronobat |
| Range | STANDARD |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 45 Ah |
| Cold cranking amps (EN) | 300 A |
| Length | 219 mm |
| Width | 135 mm |
| Height | 225 mm |
| Weight | 10.8 kg |
| Polarity | Positive terminal on the right |

## Quick description

The Kronobat SD-45.0T is a car battery with 12 V, 45 Ah and 300 A cold cranking current, measuring 219 × 135 × 225 mm, with the positive terminal on the right. Need the positive terminal on the left? The same battery is the Kronobat SD-45.1T.

## Description

## Where the Kronobat SD-45.0T fits

The Kronobat SD-45.0T 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 SD-45.0T 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 SD-45.0T belongs to the Kronobat STANDARD range. [See all Kronobat batteries](https://bateriasonline.es/en/kronobat-batteries)

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

How the SD-45.0T compares with Kronobat batteries of similar size and capacity:

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

- Kronobat PB-45.0F: the same capacity, 30 A more cranking power, a different case (238 × 129 × 227 mm).
- The Kronobat SD-45.1T is the same battery with the positive terminal on the other side: choose it if your current battery has the positive terminal on the left.
- Kronobat PB-45.0T: the same capacity, 30 A more cranking power, a different case (238 × 129 × 227 mm).

## Part numbers and codes for the Kronobat SD-45.0T

Look for any of these SD-45.0T codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | SD-45.0T |
|---|---|
| Not to be confused with | Kronobat SD-45.0 (45 Ah, 400 A), Kronobat SD-45.1T (45 Ah, 300 A, positive terminal on the left) |

## Equivalents and alternatives to the Kronobat SD-45.0T

Batteries that fit the SD-45.0T's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the SD-45.0T.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Varta B23 | Lead-acid | 45 Ah | 300 A | 220 × 135 × 225 |
| Exide EB450 | Lead-acid | 45 Ah | 330 A | 220 × 135 × 225 |
| Tudor TB450 | Lead-acid | 45 Ah | 330 A | 220 × 135 × 225 |
| Fulmen FB450 | Lead-acid | 45 Ah | 330 A | 220 × 135 × 225 |
| Deta DB450 | Lead-acid | 45 Ah | 330 A | 220 × 135 × 225 |

## Before ordering the SD-45.0T, check this

- Length, width and height of the SD-45.0T: 219 × 135 × 225 mm.
- Polarity of the SD-45.0T: positive terminal on the right (if yours has it on the other side, the cables will not reach).
- With 45 Ah, the SD-45.0T replaces an original battery of that capacity or slightly less.
- Check the EN amps on your battery: if it says 300 A or less, the SD-45.0T covers your engine.
- If your car has Start-Stop, the SD-45.0T is not the right one: it needs an EFB or an AGM.

## Inside the SD-45.0T: lead-acid technology

The SD-45.0T is a conventional lead-acid battery, with plates immersed in liquid electrolyte. In cars without energy management, the SD-45.0T needs no special registration: just connect it.

## Frequently asked questions about the Kronobat SD-45.0T

### SD-45.0T or PB-45.0F: which one suits me?

Compared with the SD-45.0T, the Kronobat PB-45.0F has 30 A more cranking power. If your current battery says 330 A or more, choose the PB-45.0F; if it says 300 A or less, the SD-45.0T is enough. Mind the space: the PB-45.0F measures 238 × 129 × 227 mm.

### Kronobat SD-45.0T or SD-45.1T: what is the difference?

Only the polarity: the SD-45.0T has the positive terminal on the right and the SD-45.1T the positive terminal on the left. Capacity (45 Ah), cranking power and dimensions are identical.

### Can the Kronobat SD-45.0T be used in a car with Start-Stop?

No. The SD-45.0T 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-45.0T weigh?

10.8 kg, with 45 Ah of capacity. For reference, the Kronobat PB-45.0F (45 Ah) weighs 11.7 kg.

### Which battery is equivalent to the Kronobat SD-45.0T?

With the same dimensions, polarity and similar capacity you have the Varta B23, Exide EB450 and Tudor TB450. As the SD-45.0T is a conventional battery, an EFB or AGM of the same size also works.

## Other options if you are unsure about the SD-45.0T

- [Other car batteries](https://bateriasonline.es/en/car-batteries)
- [The whole Kronobat range](https://bateriasonline.es/en/kronobat-batteries)
- [Varta B23](https://bateriasonline.es/en/varta-b23) · 45 Ah, 300 A, 220×135×225 mm
- [Exide EB450](https://bateriasonline.es/en/exide-eb450) · 45 Ah, 330 A, 220×135×225 mm

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