I motsetning til hurtigladeren har destinasjonsladeren lav ladeeffekt.

Yes. I motsetning til is a fixed expression meaning in contrast to, unlike, or as opposed to.

So:

• I motsetning til hurtigladeren ... = Unlike the fast charger ...
• I motsetning til sommeren er vinteren mørk. = Unlike summer, winter is dark.

Even though motsetning by itself means opposite or contrast, in this phrase you should learn i motsetning til as one unit.

This is because of the Norwegian V2 rule: in main clauses, the finite verb usually comes in the second position.

Here, the sentence begins with the fronted phrase:

• I motsetning til hurtigladeren

That counts as the first element. So the finite verb must come next:

• har

Then comes the subject:

• destinasjonsladeren

So the structure is:

• I motsetning til hurtigladeren = first element
• har = finite verb in second position
• destinasjonsladeren = subject
• lav ladeeffekt = object/complement

If you start directly with the subject, then you get normal subject-verb order:

• Destinasjonsladeren har lav ladeeffekt.

But once you move i motsetning til hurtigladeren to the front, inversion happens:

• I motsetning til hurtigladeren har destinasjonsladeren lav ladeeffekt.

The ending -en marks the definite singular form for many common-gender nouns.

• en hurtiglader = a fast charger

• hurtigladeren = the fast charger

• en destinasjonslader = a destination charger
• destinasjonsladeren = the destination charger

In this sentence, Norwegian uses the definite form because it is talking about these charger types as identifiable categories or known items in the discussion.

This is very common in explanatory or technical language.

That is a very natural question. Norwegian often uses the singular definite form to talk about a type or category in a general way, especially in explanations, comparisons, and technical descriptions.

So:

• hurtigladeren can mean the fast charger / the fast-charging type
• destinasjonsladeren can mean the destination charger / the destination-charging type

English often prefers plurals for general statements, but Norwegian is often comfortable with singular definite nouns in this kind of context.

So the sentence is not necessarily about one specific charger standing next to another; it can also describe the two charger types in general.

Because i motsetning til is the standard expression. The preposition til belongs to the phrase.

So you should think of it as:

• i motsetning til + noun/pronoun

Examples:

• I motsetning til bilen sykler han til jobb.
• I motsetning til meg liker hun vinteren.

Using another preposition here would usually sound wrong or unnatural.

Yes. Ladeeffekt is a compound noun, which is extremely common in Norwegian.

It is made of:

• lade- = relating to charging
• effekt = power, output

So ladeeffekt means charging power.

Norwegian often combines nouns into one word where English might use two words:

• hurtiglader = fast charger
• destinasjonslader = destination charger
• ladeeffekt = charging power

This is one of the most important vocabulary patterns in Norwegian.

Because Norwegian often omits the article with abstract or technical qualities after verbs like ha when describing a general characteristic.

So:

• har lav ladeeffekt = has low charging power
• har høy hastighet = has high speed
• har god kvalitet = has good quality

This sounds more natural than adding en.

If you add en, it usually sounds more like you are referring to a specific measurable instance:

• Den har en ladeeffekt på 11 kW.

That means something like It has a charging power of 11 kW.

So in your sentence, lav ladeeffekt is a natural general description.

The adjective form depends on the noun it describes.

Here, ladeeffekt is a common-gender singular indefinite noun, so the adjective takes the basic form:

• lav ladeeffekt

Compare:

• en lav effekt = common gender singular
• et lavt nivå = neuter singular
• lave nivåer = plural
• den lave effekten = definite

So lav is correct because ladeeffekt is singular, common gender, and indefinite.

It functions as the thing that destinasjonsladeren har.

You can think of the sentence like this:

• destinasjonsladeren = subject
• har = verb
• lav ladeeffekt = object/content of what it has

So the core clause is:

• Destinasjonsladeren har lav ladeeffekt.

Then the contrast phrase is added at the front:

• I motsetning til hurtigladeren ...

That means the sentence structure is not especially exotic; the unusual-looking part is mostly the fronted contrast phrase plus V2 word order.

Yes, that is possible, but it is usually less neat and less natural in this context.

The original version:

• I motsetning til hurtigladeren har destinasjonsladeren lav ladeeffekt.

sounds clear because it sets up the contrast immediately.

If you move i motsetning til hurtigladeren to the end, it can still be understood, but it may sound a bit heavier or slightly less elegant, especially in formal or informative writing.

So the original sentence is a very natural Norwegian way to present a contrast.