How do I add balance to a Battle.net account?

Buy a Battle.net gift card, sign in to your Blizzard account and enter the code in the gift cards and codes section. The amount becomes Blizzard Balance straight away and pays for anything in the Blizzard store and inside the games. Here you collect that card with a balance your graphics card earned first.

What can you spend Battle.net Balance on?

Games and expansions from the Battle.net catalog, World of Warcraft game time, Diablo IV Platinum, Overwatch 2 coins, Hearthstone card packs, StarCraft II and Warcraft Rumble. Since 2025 the same platform also carries Xbox Game Studios and Bethesda titles, so one balance reaches a much wider shelf than Blizzard alone.

How do you get Battle.net for free?

You build a balance with GamerHash AI and spend it in the GamerHash store on a 20 or 50 EUR Battle.net gift card. The code is an ordinary one, bought like any other — the difference is that your graphics card earned the money, running AI jobs during the hours the machine was idle anyway.

Are Battle.net gift cards region locked?

Yes. Codes are region-specific and the region of the card has to match the region of the account, so a euro card redeems on a European Battle.net account and a US code does not. Check which region your account sits in before you redeem, because a redeemed code cannot be moved.

Can Battle.net Balance be transferred or cashed out?

No. The balance stays on the account that redeemed the code — you cannot send it to a friend or withdraw it to a bank account. You spend it in the Blizzard store and in game, though some items can be bought as a gift for someone else.

Can I pay for a WoW subscription with Battle.net Balance?

You can buy game time with it, which is the normal route. What Blizzard does not allow is setting the balance as a recurring subscription payment method, so you top up game time by hand whenever the previous block runs out.

How long does it take to earn a 20 EUR Battle.net card?

At eight idle hours a day an RTX 5090 gets there in six days, an RTX 4090 in eight, an RTX 4080 in ten and an older RTX 3090 in about nineteen. The 50 EUR card takes fifteen days on a 5090 and nineteen on a 4090. Use the calculator on this page for your exact card.

Official Blizzard artwork — the Battle.net app with its Blizzard game rail, open on Diablo IV

Battle.net gift cards 20 and 50 EUR · one balance, every Blizzard game

One Battle.net balance, paid for by your graphics card

Your PC sits idle for hours every single day. Put those hours to work: the app runs AI jobs on your graphics card, your balance climbs while you sleep, and you spend it on a Battle.net gift card — 20 or 50 EUR. The code lands as Blizzard Balance, and only then do you pick what it becomes: WoW game time, Diablo IV, Overwatch 2 coins, Hearthstone packs.

A 20 EUR card: about six days on an RTX 5090
One balance: WoW, Diablo, Overwatch, Hearthstone, StarCraft
Out of your own pocket: nothing

Start earning Battle.net balance See how long it takes

Three steps. That is the whole thing.

No catch, no subscription on our side, no small print. You rent out your graphics card for AI compute and get paid for it — during the hours you were not using the machine anyway.

Switch it on, forget it

Install the app, hit EARN, get on with your day. Setup takes about a minute.

The card works, the balance grows

Not gaming? Your GPU runs AI jobs. Gaming? It steps aside instantly. You get paid by the hour.

Collect the Battle.net code

Pick a denomination in the store, then redeem it on your Blizzard account as balance.

How many days does your card need?

An RTX 5090 covers a 20 EUR Battle.net card in six days and an RTX 4090 in eight; an RTX 4080 takes ten and an older RTX 3090 about nineteen. The 50 EUR card — over three months of WoW game time — takes fifteen days on a 5090. Pick your exact model in the calculator and see the real number.

What your PC needs to earn

24.25 GUSD

RTX 5090 6 daysRTX 4090 8 daysEstimated at 8 idle hours a day.

Run it on your card

Balances are held in GUSD — an internal unit equal to 1 USD. How fast it adds up depends on your card, the hours it runs and current network demand.

The Battle.net code itself, not a substitute

The English catalog stocks Battle.net gift cards in two denominations, 20 and 50 EUR. Your balance buys the code directly: no intermediate gift card to trade on, no waiting for the right SKU. The store carries exactly what this page is about.

Battle.net Gift Card 20 €

Gift cards

Battle.net Gift Card 50 €

Gift cards

You redeem the code on your Blizzard account, in the gift cards and codes section. The amount becomes Blizzard Balance and sits there until you spend it — WoW game time, Diablo IV and its expansions, Platinum, Overwatch 2 coins, Hearthstone packs, StarCraft II, Warcraft Rumble. Codes are regional, so a euro card belongs on an account in the European Battle.net region. Nothing forces you to choose at redemption, and that is the point of a balance rather than a boxed game: the decision keeps until you want to make it.

Browse the whole store

Battle.net — what it is and what the balance buys

Short and concrete: what Battle.net is, what runs on it today, what the balance covers and how the gift card works. Taken from the Blizzard Support centre and the platform documentation.

What Battle.net is: Blizzard's platform and launcher — live since January 1997, alongside the first Diablo
Blizzard games: WoW, Diablo IV and Immortal, Overwatch 2, Hearthstone, StarCraft II, Warcraft Rumble
Not only Blizzard: Xbox Game Studios and Bethesda titles joined from 2025 — Avowed, Doom: The Dark Ages
Call of Duty: The PC releases live on the same account and are bought with the same balance
What the balance covers: Games, expansions, WoW game time, Diablo IV Platinum, Overwatch 2 coins, Hearthstone packs
WoW subscription: Balance buys game time; Blizzard does not accept it as a recurring subscription method
Card region: Codes are region-specific — a euro card belongs on a European Battle.net account
Transfers and refunds: Balance stays on the account that redeemed the code; it cannot be moved or cashed out

Source: the Blizzard Support centre (battle.net/support) and Battle.net platform documentation.

Frequently asked questions

Buy a Battle.net gift card, sign in to your Blizzard account and enter the code in the gift cards and codes section. The amount becomes Blizzard Balance straight away and pays for anything in the Blizzard store and inside the games. Here you collect that card with a balance your graphics card earned first.
Games and expansions from the Battle.net catalog, World of Warcraft game time, Diablo IV Platinum, Overwatch 2 coins, Hearthstone card packs, StarCraft II and Warcraft Rumble. Since 2025 the same platform also carries Xbox Game Studios and Bethesda titles, so one balance reaches a much wider shelf than Blizzard alone.
You build a balance with GamerHash AI and spend it in the GamerHash store on a 20 or 50 EUR Battle.net gift card. The code is an ordinary one, bought like any other — the difference is that your graphics card earned the money, running AI jobs during the hours the machine was idle anyway.
Yes. Codes are region-specific and the region of the card has to match the region of the account, so a euro card redeems on a European Battle.net account and a US code does not. Check which region your account sits in before you redeem, because a redeemed code cannot be moved.
No. The balance stays on the account that redeemed the code — you cannot send it to a friend or withdraw it to a bank account. You spend it in the Blizzard store and in game, though some items can be bought as a gift for someone else.
You can buy game time with it, which is the normal route. What Blizzard does not allow is setting the balance as a recurring subscription payment method, so you top up game time by hand whenever the previous block runs out.
At eight idle hours a day an RTX 5090 gets there in six days, an RTX 4090 in eight, an RTX 4080 in ten and an older RTX 3090 in about nineteen. The 50 EUR card takes fifteen days on a 5090 and nineteen on a 4090. Use the calculator on this page for your exact card.
Yes. GamerHash AI releases the graphics card the moment you launch a game and returns to compute when you close it. You only earn on time your PC was idle anyway.

Your card is idle anyway. Put it on your Blizzard account.

Setup takes a minute. Six days later twenty euro of Blizzard Balance is sitting there, and what it turns into — WoW, Diablo, Hearthstone — is a decision you get to make later.

Start earning Battle.net balance Create an account

Battle.net, Blizzard and all related trademarks and artwork are the property of Blizzard Entertainment, Inc. GamerHash is not affiliated with Blizzard Entertainment, Inc.