The Best Car Battery 2021

Without a functioning car battery, the starter motor and ignition system won’t get the required current needed to start the car. Therefore, when it comes to replacing your battery, its important that you choose the right one and below are some of the best.

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Best Car Battery
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If you require a quick answer, the best car battery is the Bosch S4 096. It’s a direct OEM replacement that’s backed by an impressive 4 year manufacturers guarantee and is also suitable for a variety of cars. However, if you require additional power, the Yuasa YBX9000 is the best option that’s rated at an impressive 95 Ah.

To rate the recommendations within this article, we based the car batteries upon plenty of research and multiple factors. The factors we considered included their brand reputation, capacity, service life, carry handle, warranty and value.

Car Battery Comparison

Car BatterySizeCapacity
Bosch S4 09627.8 x 17.5 x 19.0 cm74 Ah
Varta Blue Dynamic C2220.7 x 17.5 x 19.0 cm52 Ah
Yuasa YBX900035.3 x 17.5 x 19.0 cm95 Ah
Exide 096 AGM27.8 x 17.5 x 19.0 cm70 Ah
Bosch S5 A0827.8 x 17.5 x 19.0 cm70 Ah
Autolite 06320.7 x 17.5 x 17.5 cm45 Ah

Below is a list of the best car batteries that are available in a range of sizes and capacities to suit all vehicles.

The Best Car Battery


1. Bosch S4 Car Battery

Bosch S4 Car Battery
By far the most popular car battery on the market is the Bosch S4 096, which according to the brand is up to 2 times more efficient than standard batteries. It’s suitable for the majority of the vehicles on UK roads but it’s advised that you check the size and battery terminal locations beforehand.

Other features of the Bosch S4 096 include:

  • Rated at 12V 74 Ah capacity
  • 100% maintenance-free
  • High starting power
  • Long service life
  • 27.8 x 17.5 x 19.0 cm in size
  • Weighs 17.54 KG
  • Ideal OEM replacement
  • Backed by a 4 year guarantee

The Bosch S4 continues to dominate in the UK and it’s one of the best car batteries on the market that’s backed by a reputable brand. Although more expensive than some of the alternatives, it’s worth the extra and it even comes with a 4 year guarantee for complete peace of mind.
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2. Varta Blue Dynamic C22 Car Battery

Varta Blue Dynamic C22 Car Battery
Another popular and more affordable car battery is the Varata Blue Dynamic C22 model. It’s a German made battery that’s designed to be a “like-for-like” OEM replacement that meets all of the required OEM criteria.

Other features of the Varata Blue Dynamic C22 include:

  • Rated at 12V 52 Ah capacity
  • Made in Germany
  • 20.7 x 17.5 x 19.0 cm in size
  • Weighs 14.3 KG
  • Terminal type 1
  • Made in Germany
  • Fast recharge technology

The Varata Blue Dynamic C22 is an excellent all-round car battery that’s ideal for small cars that require a replacement. As with the Bosch battery above, this cheaper alternative also comes with a 4 year warranty as an added bonus.
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3. Yuasa YBX9000 High Performance Battery

Yuasa YBX9000 High Performance Battery
If you require additional starting power and performance for more powerful or larger vehicles, the YUASA YBX9000 is a great option. It’s designed specifically for high power demands and the brand even states that it can provide up to 360,000 engine starts, which is very impressive.

Other features of the YUASA YBX9000 include:

  • Rated at 12V 95 Ah capacity
  • Rollover-proof lid
  • State of charge indicator
  • Fully maintenance-free
  • Maximum plates for extra starting power
  • Backed by a 4 year warranty
  • 35.3 x 19.0 x 17.5 cm in size
  • Weighs 23.36 KG

The YUASA YBX9000 is a high performance battery that’s built to the highest of standards and won’t disappoint. It’s a great OEM replacement that packs plenty of power and also comes with a 4 year warranty for complete peace of mind.
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4. Exide 096 AGM Car Battery

Exide 096 AGM Car Battery
The Exide 096 AGM is a direct competitor of the Bosch S4 and it’s designed to cope with the increasing use of comfort electronics that come with modern vehicles. In terms of it’s performance, the brand states that it has a capacity of 70 Ah and cold cranking amps rated at 760 CCA.

Other features of the Exide 096 AGM include:

  • High performance and ready to fit
  • 27.8 x 17.5 x 19.0 cm in size
  • Weighs 20 KG
  • Backed by a 3 year guarantee
  • Exceeds OEM requirements

Overall, it’s a powerful car battery that’s built to a high standard and provides improved starting performance for stop start cars. However, the premium price tag makes it a less attractive option when compared to the Bosch S4 alternative.
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5. Bosch S5 A08 Car Battery

Bosch S5 A08 Car Battery
One of the most expensive car batteries within this article is the Bosch S5 and it’s the brand’s flagship model. Bosch state that it’s suitable for all vehicles equipped with start/stop systems and it provides up to 3 times more efficiency when compared to standard car batteries.

Other features of the Bosch S5 A08 include:

  • 100% maintenance-free
  • Uses AGM technology
  • Rated at 70 Ah
  • 27.8 x 17.5 x 19.0 cm in size
  • Suitable for inclines up to 90°
  • Backed by a 5 year guarantee

Although expensive, the Bosch S5 battery is their best car battery yet that’s designed to cope with all the modern electronics such as stop start systems. For complete peace of mind, it even comes with an impressive 5 year guarantee.
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6. Autolite 063 Car Battery

Autolite 063 Car Battery
The cheapest solution to replacing a faulty battery is the Autolite 063 model. It’s a budget car battery that’s rated at 45 Ah capacity and is more than ideal for most small cars on the UK roads.

Other features of the Autolite 063 Battery include:

  • Rated at 12V 45 Ah
  • 20.7 x 17.5 x 17.5 cm in size
  • State of charge indicator
  • Integrated carry handle
  • Weighs just 12 KG

If you are looking for a cheap car battery that you can rely on, the Autolite 063 is the best option. It’s lightweight and packs more than enough power for starting small saloons or hatchbacks each and every time.
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How We Rated The Car Batteries

Although car batteries can last many years, they do eventually require replacement when they become faulty. As we own multiple cars, we replace car batteries far often than the average motorist and have experience with a variety of batteries. As well as our experience, we also based our recommendations upon plenty of research and multiple factors. The factors that we considered included their brand reputation, capacity, service life, carry handle, warranty and value for money.

best car batteries

Conclusion

All of the recommended car batteries above are suitable for all budgets and are produced by reputable UK brands. Before purchasing any of the recommendations, it’s advised that you check the specification matches your current battery. You may also want to ensure that the current battery is actually faulty. One of the easiest ways of doing this would be to use a battery charger but if you have a battery tester available, that would be the best option.

author dan 4car

Written By Dan

Dan has been a car enthusiast ever since he can remember and has an extensive range of cars that include classic cars that he has restored himself from a barn find condition to modern performance cars. Whether you need advice on how to install car parts or recommendations on what products to buy, Dan’s first-hand experience will certainly help.

If you want to find out more about Dan, our testing process or the website itself, visit our about page for further information.

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