Questions about your battery

To know if a battery works for my vehicle we have to look at the following parameters:

1) First, the battery technology. This is especially relevant if your vehicle is equipped with the start-stop system, or if your application requires deep discharge of the battery.

If your vehicle is conventional, does not have much electronics and is of some age, it is very likely that it has a conventional acid battery.

On the contrary, your vehicle is equipped with a start-stop system, there are two main technologies: AGM or EFB.

To find out if the technology is compatible with our vehicle, we can consult the vehicle manual (in some cases it specifies it) or see if the original battery has any of these acronyms or texts: AGM (Absorbed Glass Mat), EFB (Enhanced Flooded Battery) .

If your vehicle has a start-stop system, has high energy demands or requires deep discharges, we recommend an AGM technology battery.

2) Secondly, the measurement of the battery is very important, since the dimensions will determine whether we can install the battery in the space that we have reserved for its installation.

Note that battery measurements refer to the maximum available volume. Any gap or flange, terminals, handles, etc ... will be included in the measurements provided by the manufacturer.

In this way, if we have a gap greater than the measurements of the battery, we are guaranteed that it will fit in that gap.

3) Third, we have to look at the polarity of the battery. That is, where does the positive pole of the battery bear.

As the batteries can be installed with the terminals "facing" the conductor or "facing" towards the headlights, the convention is to verify the polarity of the battery by placing ourselves on the side closest to the terminals (as if we "glued" the terminals to our body)

4) Finally there are other important parameters for a good choice of battery:

Battery usage: Batteries "suffer" if left unused. Therefore, the less the vehicle is used, the better the battery we must install.

Vehicle electrical equipment: if we have a lot of electronics in the vehicle, we recommend looking for a battery with a high capacity

The difference between Varta E11 battery and Varta E12 battery is the location of the positive pole. In the rest of the characteristics and benefits they are equivalent: same measurements, same capacity (Ah), same starting force, etc ...

Thus, while the Varta E11 battery has the positive pole on the right side, the Varta E12 battery has it on the left side of the battery.

Remember that to see the location of the positive pole of a battery you always have to visually locate yourself directly in front of the terminals. To clear up doubts, it is best to visually position the battery as in the photo and compare the polarity of the positive.

If your car is of European manufacture, it is most likely that it has a blue dynamic E11 battery. Therefore, if you have chosen an E12 battery, it is advisable to take a good look at the arrangement of the terminals, lest we have misplaced the positive terminal of our battery.

The Varta E11 Car Battery and the Varta E43 Battery differ in two things:

- The performance of the E11 model is slightly higher than that of the E43 model. Thus, while the first has 74Ah of capacity and 680A of starter, the second, that is, the E43 model, has 72Ah of capacity and 680A of starter. That is, the same starting capacity and 2Ah less capacity.

- However, the most important difference is the height, so while the E11 is 19cm tall (190mm), the E43 model is 17.5cm (175mm) tall.

This last difference makes the Varta E11 Battery unsuitable due to height for some vehicle models.

This is especially relevant in some car brands such as OPEL or FORD, which usually require a lower battery.

Therefore, our recommendation is the following:

If your vehicle supports it, buy the Varta E11 Battery, it has better performance and being a battery with more rotation is usually cheaper.

If your vehicle requires less height, do not worry you can install the E43 model, which has a little less capacity, but the starter is the same or opt for the Varta E38 Battery, which has the same measurements as the E43 battery but with better performance: 74Ah capacity and a starting force of 750A.

Recommendation: If your vehicle is an Opel or Ford brand, check the height of the currently installed battery. If you are 17.5cm tall, buy the E43 model.

It could be said that the Varta E39 battery and the Varta A7 battery differ only in their sticker. That is, it is a commercial nomenclature change. All the performance and characteristics of both batteries are equivalent.

Why did the manufacturer make this change?

Basically, because the previous "E39" reference was strongly associated with start-stop vehicles, and with the arrival of electric vehicles, it was seen that the battery could be used for more purposes. The manufacturer has sought to change the nomenclature to not associate the battery as much with start-stop vehicles. And although, obviously, the battery is still suitable for vehicles with that system, they want to show the market that the battery can be used for more purposes.

For that reason, they have also introduced the xEV seal patented by Clarios (manufacturer of Varta).

Can I replace a Varta E39 battery with the new Varta A7 battery?

Of course, as it is the same battery. Additionally, since February 2023, Varta no longer manufactures the old reference, which has been discontinued. If any are found in the market, they are likely to have been manufactured some time ago.

Can you get us a Varta E39 battery?

The manufacturer no longer provides the old Varta E39 reference. Therefore, we cannot provide the old reference. Moreover, it is not recommended to look for it because if found, it means that it has been manufactured some time ago.

All our orders for Varta E39 will be replaced by the new Varta A7 reference.