Battery drains in 2 hours, MacBook shuts down unexpectedly, or the battery is swollen. Genuine-spec cell, 90-day warranty, done in 1.5 h. On-site in Helsinki, Espoo, Vantaa, and Kerava — or drop off at our workshop. Free diagnostics first.


When you book MopsiHuolto, the same person picks up the phone, drives to your door and works on your device. He's a certified laptop repair master with 20+ years of hands-on electronics experience — soldering, console maintenance, high-end laptop servicing.
Read the full story →Battery capacity degrades naturally over charge cycles. When symptoms appear, a replacement restores full-day performance at a fraction of the cost of a new Mac.
A healthy MacBook battery lasts 8–12 h. When it barely makes it through a meeting, charge cycles have used up the cells — time to replace.
Mac shuts off at 30 % or higher — battery voltage drops suddenly under load. The OS can't keep up with the real capacity.
Check System Settings → Battery → Battery Health. Below 80 % is Apple's own threshold for 'Service Recommended'. Below 60 % and performance throttling kicks in.
The trackpad feels raised, or the bottom case is lifting. Swollen Li-ion cells are a fire risk — stop using and book replacement immediately.
Four reasons locals pick us over Apple Store pricing and generic repair shops.
Technician comes to your home or office — no packing, no shipping, no waiting in a queue.
We use cells that match Apple's original spec for your model. Not generic no-brand packs that fail after 3 months.
MacBook Air (M1, M2, M3, Intel) and MacBook Pro (13", 14", 16" all years). Pentalobe and tri-wing tools, ESD-safe bench.
Battery replacement and labour warranted. Free diagnostics before any work — we charge only for what you approve.
Four steps. No surprises, no upsell while the case is open.
Call, WhatsApp, or Telegram. We arrange a time that works — morning, evening, weekend.
We read battery health, cycle count, and temperature. You see the numbers before deciding.
Case opened with pentalobe driver, old battery disconnected, new cell fitted, case torqued to spec.
Charge to 100 %, discharge, verify capacity. Health check confirms the new cell registers correctly.
Two tiers — Air and Pro. Genuine-spec cells in both. Labour, parts, and 90-day warranty included.
All MacBook Air models — Intel (2015–2020) and Apple Silicon (M1, M2, M3). Includes genuine-spec cell, labour, and 90-day warranty.
All MacBook Pro models — 13", 14", and 16", Intel and Apple Silicon. Larger cell, slightly more disassembly. Same genuine-spec quality and warranty.
Typical results after battery replacement on a 4-year-old MacBook Air M1 (1000+ cycle battery replaced with new cell).
Apple considers battery health below 80 % as 'Service Recommended' — see Apple Support article HT211094 for official guidance.
“He came on time and deep cleaned all the dust and changed thermal paste in about 1h temps improved by ALOT”
“Fast, expert service for PS5 and controller”
“Great service, and efficient maintenance. Nothing bad to say.”
Can't find what you need? Call us — we answer in minutes.
Open System Settings → Battery → Battery Health. If it says 'Service Recommended' (under 80 % capacity) or the cycle count is over 1000, it's time. Also: if your Mac shuts down unexpectedly above 20 %, or the runtime has dropped from 8–10 hours to 2–3, the battery is past its life. We check this for free before any work.
About 1–1.5 hours on-site. MacBook Air is a bit faster (no tri-wing screws on the logic board bracket). We book 2 hours to be safe — we won't rush if the old adhesive is stubborn.
We use cells that match Apple's original specifications for your exact model — same capacity, same connector, same BMS chip. These are not OEM Apple batteries (Apple doesn't sell those separately), but they register correctly in System Settings and carry our 90-day warranty.
If your Mac is still under AppleCare+, opening it will void that specific coverage. Most MacBooks more than 1–2 years old are past warranty anyway. We give our own 90-day warranty on the replacement battery and labour.
Stop using the Mac immediately — swollen Li-ion cells can vent or ignite. Don't force the case. Contact us and we'll arrange an urgent visit. We handle swollen batteries with proper tools and dispose of the old cell safely.
Yes — we can combine battery replacement with a full cleaning (fan dust removal + thermal paste replacement, +€40). Many customers do both at once since the machine is already open.
Lithium cells don't recover. Each charge cycle the capacity drops a little more — waiting only shortens runtime and increases shutdown risk.
A battery at 60 % health shuts off randomly. At 50 % you can't trust it to last a video call. Work is interrupted multiple times a day.
macOS reduces CPU and GPU performance when the battery can't supply enough peak current. The Mac feels slow even on simple tasks.
Old cells can swell and push up the trackpad or bottom case. A swollen battery is a fire risk and makes the repair more complex (adhesive is harder to remove).
The most common reason people buy a new €1200+ MacBook is battery degradation — a €79–99 replacement fixes the same problem.
Fan dust removal, thermal paste replacement — 10–20 °C cooler, silent fans.
Thermal paste, dust removal, 15–20 °C cooler. 90-day warranty.
Full MacBook cleaning and maintenance in Helsinki.
On-site in Helsinki area or drop at our workshop. Free diagnostics, fixed price, 90-day warranty.