Big Battery Refurbished Phones

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Premium Australian Big Battery Refurbished Phones

Battery life is one of the first things to go on an older phone and one of the biggest reasons people upgrade. If you want a phone that gets through a full day without reaching for a charger, this collection brings together refurbished models with large batteries and efficient power management.

Which big battery phones do we stock?

We stock refurbished models from three major brands, all selected for their battery performance:

iPhone Pro Max and Plus models – Apple's largest phones carry the biggest batteries in the iPhone lineup. The Pro Max models pair high-capacity cells with power-efficient chips, while the Plus models offer similar stamina at a lower price point.
Samsung Galaxy Ultra models – Samsung's Ultra range scores well in Android battery benchmarks. 5,000mAh+ cells, efficient processors and adaptive display tech give these phones genuine two-day potential with moderate use.
Google Pixel Pro models – Google's Pixel Pro phones use software-based battery optimisation that learns your usage patterns and limits background drain. The result is reliable battery life that holds up throughout the day.

Device compatibility

All phones in this collection are sold unlocked and work with Australian carriers including Telstra, Optus, Vodafone and their MVNOs. Each model supports:

5G connectivity (sub-6GHz bands used in Australia)
Standard Nano-SIM and/or eSIM
Fast charging and wireless charging

Check individual product listings for exact charging specs and included accessories.

What should you look for when choosing a big battery phone?

Picking the right phone goes beyond raw battery size. Here are a few things worth considering:

Battery health rating – Every phone we sell includes a battery health reading from our Phonecheck inspection. Look for devices rated 80% or above for the best day-to-day experience.
Screen size vs. battery trade-off – Larger screens use more power. If battery life matters more to you than screen size, compare the Plus/Pro models against the Ultra/Max options.
Storage needs – Streaming video and music uses less storage but more battery than playing offline files. If you use a lot of media, consider higher storage models so you can download content and save battery on the go.
Condition grade – Our grading system (Excellent, Good, Fair) reflects cosmetic condition, not battery health. A "Good" condition phone can still have strong battery health. Check both ratings before you buy.

Why buy from OzMobiles?

We ship all devices from Melbourne with same-day dispatch on orders placed before 2pm. Free delivery Australia-wide.

Every phone is tested against our 80-point Phonecheck inspection covering battery health, screen quality, buttons, sensors, connectivity, and cosmetic condition. If something isn't right, our 30-day returns policy has you covered.

OzMobiles has been selling phones and accessories since 2011. We test everything we sell and only stock products we would use ourselves.

What battery health should I expect on a refurbished phone?

Every phone in this collection is tested using our 80-point Phonecheck inspection, which includes a battery health reading. We list the battery health percentage on each product page so you know what you're getting before you buy. Most devices in this collection are rated 80% or above.

Will a refurbished phone last as long on a single charge as a new one?

That depends on the battery health rating. A phone with 90%+ battery health will perform close to new. At 80%, you may notice slightly shorter screen-on time, but the models in this collection have large enough batteries that they still comfortably last a full day for most users.

Can I replace the battery later if it wears down?

Yes. All models in this collection support battery replacement through authorised service providers or third-party repair shops. Apple, Samsung and Google all offer battery replacement programs in Australia.

Are these phones locked to a specific carrier?

No. All phones sold by OzMobiles are unlocked and compatible with Australian carriers including Telstra, Optus, Vodafone and MVNOs. Each device supports 5G on Australian networks.

What happens if I'm not happy with the battery life?

Our 30-day returns policy covers all devices. If the battery performance doesn't match the listed health rating or you're not satisfied for any reason, you can return the phone within 30 days for a refund or exchange.