iPhone 11 Battery Replacement in Astana

Reading Battery Health on the iPhone 11

The iPhone 11 shows Maximum Capacity and Peak Performance Capability under Settings → Battery → Battery Health, and a figure near or below 80 % with a service message is the usual signal to replace. Maximum Capacity is the current level the cell holds against its factory value, so 77 % means roughly a fifth of runtime is already gone. Peak Performance Capability sits underneath and reports whether the device can still deliver sudden power peaks; once it reads Service Recommended, iOS throttles the processor to prevent shutdowns. The number alone is not the whole story — a cell that still reads 85 % but dies at 25 % under load or in frost is already failing, so judge by behaviour as well as the reading.

Symptoms That Point to the Battery Rather Than Something Else

• Fast drain: the handset drops from full to empty in half a day of the same use that once lasted until evening.
• Shutdown at low charge: the device dies at 20–30 % remaining, especially outdoors in frost or during a camera session.
• Unexpected restarts: the handset reboots on its own under load, which points to a cell that cannot hold voltage peaks.
• Heat while charging: the lower half of the chassis warms noticeably more than it used to during a normal top-up.
• Swelling: the screen lifts at one edge or the back panel bulges — stop charging and book a check the same day.
• Charging only at an angle: if the handset tops up solely when the cable is bent a certain way, the port or cable is the likelier culprit and should be checked before paying for a battery.

Original or Aftermarket iPhone 11 Battery Replacement

The battery in the iPhone 11 is tied to the logic board, so the choice of part shapes what the system reports afterwards. Below is how the two options differ and what the owner sees on screen.

How Original and Aftermarket Batteries Differ

Why the iPhone 11 Shows a Battery Message After an Aftermarket Part

On the iPhone 11 the battery controller is paired to the logic board, so an aftermarket battery can trigger an Important Battery Message and hide the capacity percentage, while an original part does not. The controller carries a serial that the system checks at boot; a component without the matching serial is flagged as unrecognised, and the Maximum Capacity figure disappears from Settings. Charging speed, runtime and peak performance stay normal — the warning is a pairing signal, not a hardware fault. We offer both options on request, and 64% of customers choose the original, mostly because they want the health percentage to stay readable. It is worth deciding on the variant before the work rather than discovering the alert afterward.

How the iPhone 11 Battery Replacement Works at iServices

The work happens in front of you at our Astana workshop. Below is every step, from your first message to the moment the phone is back in your hand.

From a WhatsApp Photo to a Fixed Receipt

An engineer replies on WhatsApp within 5 minutes and quotes a price from a photo, and ahead of any work the price, component, turnaround and warranty are fixed on the receipt in about 2 minutes. You can send the picture at any hour — the answer comes back with a figure and a free time slot, so the visit itself starts with a known outcome. On arrival, the new battery is shown in factory packaging, still sealed, and only then does the technician open the handset. Getting the component and warranty written down ahead of the phone being opened is what protects you if the discussion later turns to which cell was fitted. This is how an iPhone 11 battery replacement in Astana stays transparent from the first message to the fixed receipt.

The 25-Minute Replacement and the 32-Point Check

An iPhone 11 battery replacement takes about 25 minutes while you wait, and afterward the engineer checks 32 functions with you in roughly 10 minutes. The waiting area has coffee and Wi-Fi, and 72% of repairs are finished while the customer stays on site — this one almost always falls into that group. The check covers Face ID, True Tone, cameras, microphones, speakers, charging and network — running through them together before you leave is the simplest way to confirm nothing was disturbed during the opening. If you cannot come in, a courier can be called to collect the device, and the whole process from first contact to pickup still usually takes under an hour.

What Changes After the Battery Is Replaced

After the battery is replaced, owners usually care about three things: whether their data survives, whether the case still keeps water out, and what the warranty covers. We take each in turn.

Your Data, Water Resistance and the Warranty

A battery replacement does not touch the phone's memory, so your data stays in place, and on the iPhone 11 the case is resealed with fresh adhesive to keep its splash protection. The power unit sits in its own compartment, separate from the storage chip, so photos, messages and apps are never at risk during the swap. Once the old component is out, we fit new adhesive along the frame before the screen goes back on, and the seal is pressed evenly around the perimeter. Every replacement carries a guarantee up to 1 year, fixed on the receipt ahead of the work. The fresh seal restores resistance to splashes and rain but not to full submersion, so treat a resealed handset the way you treated it when new rather than testing it in water.

What You Receive When You Collect the Phone

• Receipt: the document states the part fitted, the turnaround and the guarantee period, and it identifies the work if a question arises later.
• Warranty card: a separate card the engineer fills in, which ties the covered part to the date of the swap.
• Old cell: we return the battery that came out, so you can inspect the component that was inside your handset.
• Factory packaging: before installation the engineer shows the fresh item in its sealed box, so you see what goes in.
• Function check: together with the engineer you confirm Face ID, True Tone, cameras, microphones, speakers, charging and network before leaving.
• Payment options: the balance can be settled by Kaspi, card or cash once the check is complete.

Battery, Charging Port or Logic Board

Not every power problem on an iPhone 11 comes down to the battery. Below we explain how to tell the real cause apart before any part is ordered, and what to do if the battery has started to swell.

Telling a Worn Battery from a Port or Board Fault

Free diagnostics take 15 minutes in front of you, and a USB current tester shows whether the fault sits in the battery, the charging port or the board before any part is ordered. The engineer reads the draw while the phone charges and compares it with the normal curve for the model. A worn battery holds voltage but drops sharply under load; a failing connector draws unstable figures that jump with cable movement; a board fault shows up as no draw at all or as a short. A handset that charges only at a certain cable angle usually has a worn port rather than a tired battery, so swapping the power cell first would not solve it.

A Swollen Battery and What to Do Before the Visit

• Lifted screen: a swollen battery presses on the display from inside, so the glass sits proud of the frame.
• Heat and smell: the handset stays warm without use, and a sweet chemical odour points to a venting cell.
• No charging: stop plugging it in, do not press the screen back down and skip opening the case yourself.
• Transport: carry the device in a non-flammable container, away from heat, and bring it in during working hours.