# Car battery Kronobat SD-45.0 12V 45Ah 400A

![Car battery Kronobat SD-45.0 12V 45Ah 400A](https://baterias.com/3264-home_default/best-price-battery-12v-45ah-sd-45_0.jpg)

> Kronobat SD-45.0 car battery 12V 45Ah 400A. STANDARD range. Dimensions 207×175×190 mm, + terminal on the right. Check fitment by plate.

**Category:** [Car Batteries](https://baterias.com/gb/car-batteries) → [KRONOBAT](https://baterias.com/gb/kronobat)

- **Canonical URL**: https://baterias.com/gb/best-price-battery-12v-45ah-sd-45_0
- **Language**: en-GB
- **Brand**: KRONOBAT
- **Reference**: BCOM-KRONOBAT-SD-45.0
- **MPN**: SD-45.0
- **Price**: 35,40 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Reference | SD-45 |
| Model | STANDARD |
| Voltage (V) | 12 V |
| Largo | 207 cm |
| Ancho | 175 cm |
| Alto | 190 cm |
| Peso | 11.7 kg |
| Tecnología | Lead-acid |
| Terminal layout | Positive terminal on the right |
| Terminal type | 1 |
| Cold cranking amps (EN) | 400 A |
| Capacity (C20) | 45 Ah (c20) |

## Quick description

**Kronobat SD-45.0 12V 45Ah 400A** is a ready-to-use passenger car battery, sealed and maintenance-free. Delivers the cranking amps the engine needs in cold weather and keeps stable voltage for modern car loads (ECU, sensors, climate control, infotainment).

## Why this car battery?

- **Original-equipment quality** without dealership prices
- **Lasts 4 to 6 years** buy once instead of twice
- **Real human tech support** if you have any doubts before buying

🔌 Voltage
12 V

⚡ Capacity
45 Ah C20

🔋 Cold cranking
400 A EN-1

📏 Dimensions
207×175×190 mm

⚙️ Technology
Lead-acid

🧭 Polarity
Positive on the right

⚖️ Weight
11,7 kg

🏷️ Model
STANDARD

## Description

## Car battery Kronobat SD-45.0 Standard 45Ah 400A 12V

12*V* Voltage
45*Ah* Capacity
400*A* Cold cranking
11.70*kg* Weight

The **Kronobat SD-45.0 car battery** is rated at **12 V**, **45 Ah** and **400 A** of cold cranking current (EN) from the **Standard** range, and is designed for passenger cars with conventional starting, without a Start-Stop system. Its 207 × 175 × 190 mm and the positive terminal on the right make it the exact replacement for the 45 Ah battery fitted as standard to many cars.
- Designed to last several years under normal daily use.
- Low self-discharge: copes with long stops without losing charge.
- Stable voltage for the vehicle electronics (ECU, sensors, climate control).
- Good balance of capacity, cranking power and price.

### Dimensions, polarity and mounting

In terms of format, the Kronobat SD-45.0 measures 207 × 175 × 190 mm (length × width × height) and weighs 11.70 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses 1.0 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.

### What the Kronobat SD-45.0 is for

Designed for passenger cars with conventional starting, without a Start-Stop system, the Kronobat SD-45.0 is the direct replacement when your vehicle uses a 45 Ah battery of this format. Before buying, compare dimensions, terminals and capacity with the battery you are replacing. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 11.70 kg and 1.0 terminals.

### The Kronobat SD-45.0: Standard range and conventional lead-acid technology

The **Standard** is the Kronobat range the SD-45.0 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
In a conventional battery the electrolyte is liquid and the lead plates are immersed in it. It is a mature, economical and easily recycled technology, ideal for starting vehicles in normal use.

### What Kronobat does differently

With Kronobat we offer an own-brand alternative without compromising on quality: European manufacturing, original-equipment controls and the direct backing of baterias.com for warranty and advice. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

### Warranty and coverage

The Kronobat SD-45.0 comes with the **manufacturer's official warranty** against manufacturing defects; the exact period is stated in the brand's conditions. If it fails through a defect within the period, we replace it free of charge.

### Usage and maintenance tips

Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. On batteries with filler caps, check the electrolyte level and top up only with distilled water.

### When you get it and how to return it

Orders placed **before [[ks:cutoff]]** with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have **[[ks:return_days]] days** to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.

## Frequently asked questions

### How is the Kronobat SD-45.0 battery installed in the vehicle?

In most cars it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — with positive on the right match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How long does the Kronobat SD-45.0 battery last?

Expected lifespan of the Kronobat SD-45.0 is 4 to 6 years in regular car use without Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.

### What are the measurements of the SD-45.0 model?

Dimensions (length × width × height) are 207×175×190 mm — also written as 207x175x190 mm and correspond to the European L1 case size — following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### What polarity does the Kronobat SD-45.0 battery have?

Polarity: positive on the right. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk.

### Will the Kronobat SD-45.0 battery fit my car?

Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The SD-45.0 typically fits a wide range of European vehicles thanks to its standard DIN case format.

### Which batteries are equivalent to the Kronobat SD-45.0?

Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop cars. See the "Equivalents" section to view recommended options at the same performance level.


## Reviews

- **Average rating**: 5 / 5 (1 reviews)

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-10-22*