La recarga añade dinero al saldo de prepago.

Here recarga means a top-up or recharge: the action of adding credit or money to a prepaid account, phone, card, etc.

In Spain, recarga is very commonly used for prepaid mobile services:

• hacer una recarga = to top up / recharge
• una recarga de 10 euros = a 10-euro top-up

So La recarga... means The top-up...

Because recarga here is a noun, not a verb.

• recargar = to top up / to recharge (infinitive verb)
• la recarga = the top-up / the recharge (noun)

Compare:

• Recargar añade dinero... would not work here.
• La recarga añade dinero... = The top-up adds money...

This is very common in Spanish: a verb and a related noun can look similar.

• comprar = to buy
• la compra = the purchase / the shopping

Añade is the third-person singular present tense of añadir = to add.

So:

• yo añado = I add
• tú añades = you add
• él / ella / la recarga añade = he / she / it / the top-up adds

The subject is la recarga, which is singular, so añade is the correct form.

Because dinero is being used in a general, uncountable sense, like money in English.

Spanish often omits the article with mass nouns when speaking generally:

• añade dinero = adds money
• necesito agua = I need water
• tiene paciencia = he/she has patience

You could use an article in other contexts, but here dinero without el sounds natural and standard.

Al is the contraction of a + el.

• a = to
• el = the
• a el becomes al

So:

• al saldo = to the balance

This contraction is mandatory in standard Spanish whenever a is followed by el:

• voy al banco = I go to the bank
• se lo di al profesor = I gave it to the teacher

In Spanish, saldo is the normal word for balance in financial or account contexts.

Examples:

• saldo de la cuenta = account balance
• saldo disponible = available balance
• quedarse sin saldo = to run out of credit/balance

The English-looking word balance exists in Spanish, but it usually means things like:

• physical balance
• equilibrium
• a summary/accounting balance in some contexts

For phone credit or prepaid money, saldo is the natural word.

De prepago means for prepaid use or of a prepaid type.

So saldo de prepago is:

• prepaid balance
• pay-as-you-go balance
• prepaid credit

In Spain, prepago is very common for services paid in advance:

• tarjeta de prepago = prepaid card
• móvil de prepago = prepaid phone/service
• saldo de prepago = prepaid balance

It describes the type of balance: it belongs to a prepaid system.

Because prepago is very commonly used in Spanish as a noun/adjective-like term in telecoms and payments, especially in expressions like:

• tarjeta de prepago
• saldo de prepago
• servicio de prepago

Prepagado also exists, but it is less idiomatic in many of these set phrases in Spain. In this sentence, saldo de prepago sounds more natural than saldo prepagado.

So this is partly a grammar point and partly a collocation point: it is the phrase native speakers normally use.

In saldo de prepago, prepago functions like a noun inside a de + noun structure.

Literally, it is something like:

• balance of prepaid service/system

Spanish often uses this pattern where English might prefer an adjective:

• tarjeta de crédito = credit card
• gafas de sol = sunglasses
• saldo de prepago = prepaid balance

So even though English says prepaid balance, Spanish naturally says balance of prepay/prepaid service.

Because that is a very normal Spanish structure:

subject + verb + thing added + destination

• La recarga = subject
• añade = verb
• dinero = what is added
• al saldo de prepago = where/to what it is added

It works much like English:

• The top-up adds money to the prepaid balance

Spanish is fairly flexible with word order, but this version is neutral and natural.

You could, but the meaning shifts slightly.

• añadir dinero al saldo = to add money to the balance
• añadir saldo = to add balance/credit

In real-life usage, añadir saldo can sound natural in some contexts, especially when saldo means credit. But your original sentence is more explicit: it says money is being added to the prepaid balance.

So:

• añade dinero al saldo = clearer and more precise
• añade saldo = shorter, but slightly less specific

Yes, recarga is feminine, which is why it takes la.

You know it is feminine because the standard form is:

• la recarga

Many nouns ending in -a are feminine, though not all. The safest way is to learn the noun together with its article:

• la recarga
• el saldo

That also helps you remember agreement later:

• la recarga automática
• el saldo disponible

The ñ is pronounced like the ny sound in canyon, but usually more smoothly merged into one sound.

So añade is approximately:

• ah-NYA-de

Very roughly:

• a = like ah
• ña = nya
• de = deh

And the full sentence is roughly:

• La reh-KAR-ga ah-NYA-de dee-NE-ro al SAL-do deh preh-PA-go

The most important pronunciation point here is that ñ is not the same as n:

• ano and año are completely different words
• so it is important to pronounce añade with ñ, not plain n

Yes. It sounds like standard formal or semi-formal Spanish, especially in telecom, banking, app, or customer-service contexts.

It has the kind of wording you might see in:

• an app
• a website
• a help page
• payment instructions
• mobile top-up information

In everyday conversation, people might also say things like:

• La recarga te mete dinero en el saldo.
• La recarga suma saldo.
• Al recargar, se añade saldo.

But your original sentence is perfectly natural and clear in standard Spain Spanish.