Battery gone in an hour, dies with charge still showing, only works on the charger. New battery for your exact model, price before you book. HP, Dell, Lenovo, Acer, Asus and more. On site in Helsinki, Espoo and Vantaa, or bring it to us. Free diagnostics, you pay after the repair.

Type your laptop model or the battery code. You see the battery, delivery and work as separate lines and the total before you book. Diagnostics are free, and you pay after the repair.
Parts come from iFixit's European store, new unless marked used. You see the full price — part and work — before anything is ordered.
Type your model or the part code and see the full price — the part and the work.

When you book MopsiHuolto, the same person picks up the phone, drives to your door and works on your device. He's a repair technician with 20+ years of hands-on electronics experience, certified in soldering and laptop repair at the Vremonte courses in St Petersburg (2019) — soldering, console maintenance, high-end laptop servicing.
Read the full story →Almost every job happens on your own table. Not as a perk — it is simply the arrangement that works better for both of us.
A laptop battery wears out with every charge cycle. Windows can tell you how far: run powercfg /batteryreport in the command prompt and compare Design Capacity with Full Charge Capacity.
The charge drops visibly while you watch, and a full battery no longer lasts a meeting or a lecture.
The laptop switches off with charge left on the indicator — the worn battery can't hold its voltage under load.
Unplug the cable and it goes dark, or Windows reports the battery is not charging.
The touchpad lifts, the bottom case bulges or the keyboard bows. Stop using and charging the laptop and call us — a swollen cell should come out, not stay in.
Four steps. You see the price before anything is ordered.
Type the model or the battery code into the calculator below. The model is on the label under the laptop; the battery code is on the battery itself.
Battery, delivery and work as separate lines and a total. Not in the calculator? Send us the model and we look it up.
We order the battery for your laptop and agree the day with you once it has arrived.
At your home or office, or bring it to us. Old battery out, new one in, charging and battery report checked before you get it back.
“"Excellent service! I brought in my MSI laptop with overheating issues. Even though I had already opened it myself, they handled it professionally with a deep clean and high-quality repasting. The temperature is much lower now."”
“In 1,5h changed thermal paste in my MSI laptop and cleaned it properly! No extra charge. Next time I will use this service ☺️”
“Andrei responded very quickly and offered me a time on the same day, thoroughly cleaned the laptop and replaced the thermal paste. All for a good price, and now my laptop runs much better!”
Didn't find what you were looking for? Call — we answer in minutes.
From €119, depending on the model. The calculator on this page gives the exact total for your laptop: the battery, delivery and the work. Diagnostics are free and you pay after the repair.
Run powercfg /batteryreport in the Windows command prompt. It saves a report that shows Design Capacity (what the battery held when new) and Full Charge Capacity (what it holds now). When the second is far below the first and the laptop no longer lasts the day, it is time.
Send us the model and, if you can, the battery code printed on the battery. We look up the right battery and tell you the price before anything is ordered.
From iFixit's EU store. The calculator shows the name of each battery and whether it is new or used, and the price is checked daily.
The delivery of the battery sets the timetable. We order it for your model and agree the repair day with you once it has arrived. We don't promise same-day repairs.
No. A battery swap doesn't touch the drive, so Windows and your files stay as they are. Still, keep your own backup of anything important.
Yes. We come to your home or office in Helsinki, Espoo and Vantaa, and travel inside Ring III is included. We also go to Kerava and further out, at €0.50/km. You can also bring the laptop to us.
We don't give a separate time-limited warranty: under the Finnish Consumer Protection Act we are responsible for defects in our work and in the battery we fit for as long as the repair can reasonably be expected to last. If the fault comes back, tell us and we fix it free. Details in Terms §7.
Brand, model and what the battery does. Free diagnostics, the exact price before anything is ordered, and faults in our work fixed free.