If your phone can’t make it through the day without a charge — or shuts down randomly at 30% — it’s almost certainly the battery. The good news? It’s one of the most straightforward repairs we do. Same-day battery replacement at our Brisbane stores in Underwood and Sunnybank Hills. Most done in under an hour. Just walk in.
Batteries degrade gradually, so it’s easy to miss the signs until things get really bad. Here’s what to look out for:
Drains from full to empty in just a few hours
Your phone used to last all day. Now you’re reaching for the charger by lunchtime — or worse, before you even leave the house.
Shuts down with battery percentage remaining
Phone turns itself off at 30%, 20%, or even 40% and won’t restart until it’s been plugged in. The battery can no longer deliver consistent power under load.
Takes forever to charge — or won’t reach 100%
A degraded battery takes significantly longer to charge and may plateau at 80–90% no matter how long you leave it plugged in.
Phone gets warm during normal use
Some warmth during charging is normal. But if your phone heats up just from browsing, calls, or sitting idle — the battery is working far harder than it should be.
Screen or back cover is lifting or bulging
This is the most urgent sign. A swollen battery is a safety concern. If you notice any lifting or bubbling of your screen or back panel, bring it in immediately — do not charge it.
iPhone shows “Service Recommended” warning
iOS’s Battery Health feature will show this message when battery capacity falls below 80%. This is Apple’s official recommendation to replace the battery.
Phone batteries degrade over time as the chemical cells inside lose their ability to hold a full charge. Here’s a simple guide to understanding where your battery is at — and what that means for your phone’s performance.
✅ Healthy
Battery is performing well. Normal capacity, good all-day life. No action needed unless you’re noticing unusual drain.
⚠️ Degraded
Noticeably reduced capacity. You’ll see shorter battery life throughout the day. Replacement recommended for best performance.
🔴 Replace Now
Significantly degraded. Expect random shutdowns, severe drain, slow performance, and potentially unsafe behaviour. Replace soon.
Go to Settings → Battery → Battery Health & Charging. You’ll see a percentage showing your battery’s maximum capacity compared to when it was new. Apple recommends replacement when this drops below 80%.
Android doesn’t have a single universal battery health screen. On Samsung devices, try the dialer code *#0228# for battery info. For other brands, apps like AccuBattery give a reliable reading. Or bring it in — our team can run a diagnostic check for free.
A useful rule of thumb: most phone batteries last 400–500 full charge cycles before noticeable degradation begins. For a typical smartphone user, that’s roughly 18–24 months of daily use. After that, you’ll start to notice the decline — and a replacement is usually the most cost-effective fix.
Simple, fast, and transparent. Here’s exactly what happens when you come in for a battery replacement at Mobile Connect Brisbane.
Both our Underwood Marketplace and Sunnybank Hills Shopping Town stores welcome walk-ins every day of the week. Not sure if you need a battery or something else? Send us a WhatsApp first and we’ll help you figure it out in minutes — no pressure.
Our technician runs a battery health diagnostic to confirm the battery is the issue, check your current capacity percentage, and rule out any other contributing factors. This check is free, takes just a few minutes, and happens before we quote you anything.
Once we’ve confirmed the battery needs replacing, we give you a firm, all-inclusive price — parts and labour. No add-ons at checkout. You approve it, then we start work.
We fit a quality replacement battery, run a full charge cycle test to confirm it’s working correctly, and check that all functions (screen, cameras, charging port) are performing as expected before handing your phone back.
We carry batteries for all popular brands. If your model isn’t listed, send us a WhatsApp with your device name and we’ll confirm availability before you make the trip.
Looking specifically for iPhone battery replacement in Brisbane or Samsung battery replacement? We have dedicated service pages for each with model-specific pricing.
We know you have options. Here’s why people in Brisbane’s south side come back — and bring their family and friends.
Nearly a decade as an authorised Telstra partner means proper training, real accountability, and a business that stands behind every repair it does. Not a pop-up kiosk — a real local shop with a proven track record.
We use high-quality replacement batteries that meet or exceed original manufacturer specifications. No cheap knock-offs that fail within weeks. Your phone should feel like new again — and stay that way.
We run a battery health test for free before recommending anything. If it turns out your battery is fine and something else is causing the drain, we’ll tell you that — and save you an unnecessary repair cost.
We stock batteries for all popular iPhone and Samsung models at both our Brisbane stores. Walk in during your lunch break and walk out with a phone that lasts all day again.
Underwood Marketplace and Sunnybank Hills Shopping Town — both easily accessible with parking. Seven days a week. No booking system to navigate, just walk in.
If your phone is too old to justify a battery replacement, or if there’s a software issue causing the drain rather than the battery itself, we’ll tell you honestly before you spend a dollar. That’s the kind of service that builds trust.
A failing battery might seem like just an inconvenience — you carry a charger everywhere, you top up regularly. But ignoring it for too long can cause problems that go beyond just poor battery life.
Both Apple and Samsung throttle processor speed to protect a failing battery. This means your phone gets noticeably slower over time — not because the chip is old, but because the battery can’t support peak performance.
Continued use of a degraded battery can lead to dangerous swelling. A swollen lithium battery can rupture, leak, cause burns, or in serious cases catch fire. If you see any bulging or lifting — bring it in immediately.
Constantly topping up a phone with a failing battery puts your charging port under far more stress than normal. You may end up needing both a battery replacement and a charging port repair at the same time.
A battery replacement typically costs $69–$129. A new phone starts at $500+. If your phone is otherwise in good condition, replacing the battery is almost always the smarter financial decision — and we’ll tell you honestly if it’s not.
No one likes guessing. Here’s a clear starting-price guide — the final price depends on your model, and we always confirm it before we begin. No hidden fees, ever.
| Device Type | Includes | Starting From |
|---|---|---|
| iPhone 6 / 7 / 8 / SE (1st & 2nd Gen) | Battery replacement, health test & full function check | From $79 |
| iPhone X / XS / XR / 11 series | Battery replacement, health test & full function check | From $89 |
| iPhone 12 / 13 / 14 / 15 series | Battery replacement, health test & full function check | From $99 |
| Samsung Galaxy A-series | Battery replacement & full function test | From $79 |
| Samsung Galaxy S-series (S21–S24) | Battery replacement & full function test | From $89 |
| Google Pixel / Oppo / Motorola / Xiaomi / Vivo | Battery replacement & full function test | From $69 |
| iPad / Tablet Battery | Battery replacement & full function test | From $99 |
| Laptop Battery Replacement | Assessment & replacement — price varies by model | Contact Us |
Prices are indicative and subject to change. Final quote confirmed in-store after free diagnosis. All prices AUD, GST inclusive.
The questions we hear most often. If yours isn’t here, WhatsApp us — we reply quickly.
Battery replacement at Mobile Connect Brisbane starts from $69 for Android devices (Oppo, Motorola, Xiaomi, Vivo, LG, Google Pixel) and from $79 for iPhones and Samsung Galaxy phones. The final price depends on your specific model, and we’ll always confirm it with you after the free diagnosis before starting any work.
No hidden fees, no surprise add-ons at checkout. The price we quote is the price you pay.
Most battery replacements at our Brisbane stores are completed in 30 to 60 minutes. We stock batteries for all popular iPhone and Samsung models at both Underwood Marketplace and Sunnybank Hills Shopping Town, so for the most common devices you can wait in-store and leave with a fully working phone.
For less common models we may need to order the battery — if that’s the case, we’ll let you know the lead time before you commit to anything.
The main signs are: battery draining far faster than it used to, phone shutting down unexpectedly while still showing charge remaining, very slow charging, phone getting warm during light use, and (most urgently) any visible swelling or lifting of the screen or back cover.
On iPhone, go to Settings → Battery → Battery Health. If it’s below 80%, Apple recommends replacement. For Android, bring it in — our team can run a free health check on the spot in just a few minutes.
In most cases, absolutely yes — especially if your phone is otherwise in good condition. A battery replacement typically costs $69–$129. A new replacement phone starts at $500 and can easily reach $1,500+ for a flagship model. A new battery can make a phone that feels sluggish and unreliable feel brand new again, often for a fraction of the cost.
That said, if your phone is more than 5–6 years old and has multiple issues, it might not be worth the investment. We’ll give you an honest assessment either way — even if it means we lose the job.
Yes. We stock genuine-grade batteries for all iPhone models — from the iPhone 6 through to the latest iPhone 15 Pro Max — at both our Underwood and Sunnybank Hills stores. Most iPhone battery replacements are done in under an hour while you wait. Just walk in any day of the week.
If you’d like to check we have your specific model in stock before making the trip, send us a quick WhatsApp and we’ll confirm straight away.
No. Battery replacement is a hardware-only repair — we’re physically swapping the battery component, not touching your storage, apps, photos, contacts, or settings. Everything stays exactly as it was.
We always recommend doing a quick backup before any repair just as a general precaution. Our team can walk you through how to back up to iCloud or Google Drive quickly if you’d like to do that before we start.
For iPhones, Apple considers anything above 80% to be in the normal performance range. Below 80%, iOS may enable performance management to protect the phone, and Apple officially recommends battery replacement at this point. In practice, most users start noticing significant battery life issues between 75–82%.
For Android phones, the equivalent threshold varies by manufacturer, but the same principle applies — once capacity drops meaningfully below 80% of original, you’ll notice the difference in your daily use.
Yes — a swollen battery is a genuine safety concern and should be treated urgently. Battery swelling is caused by gas building up inside the lithium cells as they degrade. This gas can cause the battery to rupture under pressure, leading to chemical leaks, burns, or in serious cases fire.
If your phone’s screen or back panel is visibly lifting, bubbling, or the phone no longer sits flat — stop using it, stop charging it, and bring it to us as soon as possible. Do not attempt to press or puncture the battery. We handle swollen batteries safely every week at our Brisbane stores.
No appointment needed. Just walk in and we’ll take care of you. Or WhatsApp first if you’d like to confirm your battery is in stock before making the trip.
Marketplace Shopping Centre, 24/3215 Logan Rd, Underwood QLD 4119
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Sunnybank Hills Shopping Town, Sunnybank Hills QLD 4109
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While you’re in, here’s what else we can help you with at Underwood and Sunnybank Hills.
Walk in, call us, or send a quick WhatsApp. Same-day battery replacement, free diagnosis, honest advice — most done in under an hour at Underwood or Sunnybank Hills.