Phone battery replacement in Warsaw Rembertow
If your phone discharges quickly, shuts down with battery percentage remaining, has a swollen battery or works only on a charger, I can replace the battery and check whether the issue really comes from the battery.

Symptoms of a Worn Battery
- phone discharges quickly throughout the day,
- battery percentages drop in large steps,
- device shuts down even when showing charge remaining,
- phone only operates when connected to a charger,
- the casing or screen starts to push out due to a swollen battery,
- phone gets excessively hot during charging,
- overall usage time is significantly shorter than before.
Is the Battery Always the Cause?
Not necessarily. Rapid battery drain can be caused by a failing battery, but also by system software bugs, background applications, motherboard short circuits, a damaged charging port, or a faulty charger.
Before replacing the battery, I assess the symptoms and check the phone model. If the device was exposed to liquids or dropped heavily, there is a higher risk of motherboard power circuit faults.
A Swollen Battery is a Warning Sign
If you notice your back cover or screen rising, do not press down on it or continue using the phone. A swollen lithium battery is unstable and can puncture, leading to smoke or fire. It can also physically crush the display or logic board.
Do not bend, puncture, or try to peel off a swollen battery with metal tools. Professional removal with proper adhesive softeners is required.
What Does Battery Replacement Include?
- verifying the exact phone or tablet model,
- checking the battery wear state and physical condition,
- safely opening the casing and removing the worn battery,
- installing the new replacement battery,
- verifying the charging current and cycle start,
- testing basic functions after reassembly,
- informing the owner if a charging controller fault is detected.
Estimated Price List
| Service | Price (labour) | Details |
|---|---|---|
Initial assessment based on description, photos or quick inspection Applies to initial fault assessment before full diagnostics. It does not include extended disassembly, measurements or microscope work. | 0 PLN | More → |
Extended diagnostics after disassembly or measurements Applies to cases requiring device disassembly, measurements, board inspection, short-circuit detection or microscope work. | from 150 PLN | More → |
Battery replacement Replacement of a worn or damaged battery in a phone or tablet. Labour only, parts not included. | from 180 PLN | More → |
Charging port cleaning Cleaning of a dirty charging port without replacing parts, if the port is not mechanically damaged. | from 80 PLN | More → |
Prices are estimates and cover labour only. The battery and other parts are quoted separately. The final cost depends on the device model, parts availability, and casing disassembly.
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FAQ
Replacing a battery in a phone or tablet starts from 180 PLN labour. The replacement battery is quoted separately, depending on the device model and parts availability.
Yes. A swollen battery is under internal pressure and can easily catch fire if punctured. It also exerts pressure on the display and back cover, which can lead to expensive glass damage. It should be replaced immediately.
No. Fast discharge can also be caused by short circuits on the motherboard, background system tasks, or damaged charging circuits. A diagnostic check is performed to verify the battery condition.
No, battery replacement does not require wiping the phone data. However, as with any hardware repair, we recommend having an up-to-date backup of your important files.
Need a free diagnostics check?
Initial diagnostics and cost estimates at MAdKuM are completely free. Briefly describe the problem, provide the device model, and book an appointment.