Samsung Galaxy S21 battery replacement
Repaired by our specialists in Antwerp & Wolvertem — often ready while you wait, no prepayment.
€89
Your device turns off unexpectedly, loses charge quickly and/or requires frequent charging.
“Very good job in 1 hour, change battery Samsung S-23 ultra for good price, great job”
Also usable for your insurance claim Insurance claims
All Samsung models: battery replacementFor a battery replacement on the Samsung Galaxy S21, FIXNOW fits a new battery, so your device holds a full day’s charge again. The AMOLED screen and USB-C port of this device stay untouched during this repair: we work exclusively on the battery inside the sealed housing. Typical signs are a device that suddenly shuts down while it still appears to have charge left, a battery that visibly swells, or a charging time that keeps getting longer. You’ll find the price for this repair below. Your photos, apps, and settings are kept, since only the battery itself is replaced. We follow the same approach for the Galaxy S21 Plus and the Galaxy S21 Ultra. Bring your device to Antwerp or Wolvertem, or send it in.
What does this repair involve?
New capacityBest for: The phone shuts down unexpectedly, drains fast, or the battery percentage is off.
- Your phone lasts a full day again without a top-up
- Reliable capacity and lifespan
- Professionally and safely installed
Is your Galaxy S21 not charging anymore?
If your Galaxy S21 stops charging, the battery is not always the cause. The problem is often the USB-C port itself, for example due to dust or debris, and this is checked and cleaned first before looking further at the battery. Only if the port turns out to be fine and the charging issue continues does battery replacement come into play.
From 1,945 Google reviews
What customers say about their Samsung
Very good job in 1 hour, change battery Samsung S-23 ultra for good price, great job
I came in for a battery replacement. I got clear details on what would happen. Quick and high quality repair. I would really recommend coming here!
Reply from FIXNOW
Knowing exactly what will happen before we start makes a battery replacement in Antwerp a lot less stressful, so it's good to read that the explanation landed well — and that the repair stayed quick without cutting corners. Your recommendation means a lot, Casper. If anything comes up with your phone later on, we're here for you.
Fix now repair shop has 100% transparency as that price they mentioned in website,, the repair time was too quick, within 2 hrs they changed my broken leaked display,, battery changed and port diagnostics… good service
Reply from FIXNOW
The website price being the price you actually pay is something we take seriously, so it's good to know that came through clearly, Achyut. Two hours for a leaking display and a battery replacement in Antwerp is exactly the kind of turnaround we aim to keep. Enjoy your phone now that it's back in shape!
See our repairs in action
Common Galaxy S21 problems
Drains quickly
Do you need to charge several times a day? A worn battery holds much less charge than when the device was new.
Shuts down unexpectedly
Does the device switch off while there’s still charge left, especially in the cold? That’s a typical sign of a battery at the end of its life.
Gets warm or swells
A battery that heats up or makes the device swell is best replaced quickly — to prevent damage to other parts.
Charges slowly or erratically
Does the charge percentage jump around or does the device charge slowly? The battery (or the charging port) could be the cause. We run a diagnosis first.
How it works
Diagnosis
We measure the battery condition and confirm whether a replacement is the solution.
Replacement
We fit a new battery and reuse the original seal where needed for sturdiness.
Testing
We check charging and stability so your device works reliably again.
Why FIXNOW?
Parts & warranty
At FIXNOW you know upfront what a repair costs: we start with a diagnosis and discuss the price before we begin — no surprises afterwards. We work with high-quality parts and give a warranty on the repair carried out. If something doesn’t turn out as agreed, we work together to find a suitable solution.
Our stores
FIXNOW Wolvertem
Wilgenlaan 19 bus 2, 1861 Wolvertem
+32 472 29 15 53
Tuesday–Saturday 10:00–19:00
DirectionsNot nearby? Send in your device
Choose a FIXNOW shipping label, with extra protection if you want, or send it yourself with track & trace. You only pay after the repair. Available from Belgium, the Netherlands, France, Germany and Luxembourg.
Frequently asked questions
Most smartphone repairs are ready within 60 minutes. For MacBooks, tablets and motherboard repairs the duration depends on the repair; the indicative time is shown next to the price of each repair. You can wait in the store or pick up your device later — we’ll let you know as soon as it’s ready.