🔋 Greencell — Diagnosable Battery Series
Greencell Diagnosable iPhone 15 Pro Max Replacement Battery — 4422mAh — iOS Health 100% — Passes Repair Assistant
Li-polymer battery with self-diagnostic BMS chip. iOS Battery Health reads 100% from first boot. Passes Apple Repair Assistant check. 6-layer protection. 0-cycle, full capacity. 12-month warranty. Adhesive strips included. Ships from Brisbane.
🔬 BMS — Repair Assistant Compatible ⚡ 4422mAh Full Capacity 🛡️ 12-Month Warranty ✅ CE / ROHS Certified 🇦🇺 Brisbane Stock
✅ In Stock — Ready To Dispatch 🔧 Adhesive Strips Included
📍 Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078 | 0480 039 913 | Mon–Fri 9am–5pm | Sat 10am–5pm
⚠️ Repair Assistant — What You Need to Know
This Greencell Diagnosable battery passes Apple's Repair Assistant check — iOS Battery Health shows 100% after completing the process. However, if other non-genuine parts are also fitted (screen, cameras, Face ID sensor), Repair Assistant may not finish. This is a limit of Apple's software — not the battery. The battery itself works at full capacity regardless.
🔋 Signs Your iPhone 15 Pro Max Battery Needs Replacing
The iPhone 15 Pro Max carries a 4422mAh battery — the largest Apple had shipped in a Pro Max at launch. Even premium lithium-polymer cells degrade with charge cycles. Most batteries reach below 80% health within 18–24 months of daily use. When that happens, iOS applies automatic performance throttling. These are the six signs your battery needs replacing.
⚡ Short Battery Life
A full charge no longer lasts the day. iOS performance throttling activates below 80% battery health to protect ageing cells.
🔌 Slow Charging
Degraded cells resist charge. Charging takes longer, the phone warms up, and USB-C fast charging becomes less effective.
📉 Unexpected Shutdowns
Phone turns off at 20–40% remaining. A worn cell cannot hold stable voltage under load from the A17 Pro chip.
🐌 A17 Pro Throttling
The A17 Pro chip demands peak current for ProRes video, photography, and gaming. A degraded battery causes iOS to throttle clock speed automatically.
🌡️ Overheating
Excessive warmth during normal use or charging signals internal cell degradation. Not just uncomfortable — a swelling cell is a safety concern.
📊 Low iOS Health %
Check Settings → Battery → Battery Health. Below 80% is Apple's threshold for recommended replacement. The Greencell Diagnosable restores it to 100%.
🔬 Diagnosable Battery — Passes Apple Repair Assistant
Standard aftermarket batteries show a "Service Recommended" warning in iOS and hide Battery Health. The Greencell Diagnosable BMS chip sends the correct data to iOS — Battery Health displays 100% after Repair Assistant completes.
🔴 Standard Aftermarket Battery
iOS shows "Service Recommended" and hides the battery health percentage. Repair Assistant either fails or does not recognise the battery. Performance reporting is absent or inaccurate.
🟣 Greencell Diagnosable BMS
The BMS chip communicates with the iPhone 15 Pro Max motherboard directly. It sends the correct identification data required for Repair Assistant to complete. Once the process finishes, iOS Battery Health reads 100% accurately.
🟢 After Repair Assistant
Battery Health: 100%. No service warning. Cycle count: 0. Full iOS performance management active. The phone behaves as if it just left the factory with a brand new battery.
How to run Repair Assistant: Settings → General → About → Parts & Service → Restart & Finish Repair. Wi-Fi required. The process completes automatically after the restart.
🛡️ 6-Layer Safety Protection
Every Greencell Diagnosable battery includes six independent protection circuits. CE and ROHS certified.
⚡ Overcharge Protection
Cuts charging automatically when voltage reaches the safe upper limit. Prevents cell swelling and thermal runaway from excessive charge.
📉 Overdischarge Protection
Stops the cell from discharging below safe minimum voltage. Protects cell chemistry from permanent damage during deep discharge.
🌡️ Overheat Protection
Monitors cell temperature continuously. Shuts down charging if the battery temperature rises beyond safe operating limits during fast USB-C charge cycles.
⚡ Short Circuit Protection
Detects current surge from a short circuit and cuts output instantly. Critical protection during installation and for long-term electrical safety.
🌡️ Temperature Control
Wider operating temperature range for Queensland climate. Stable performance from cool mornings to Brisbane summer heat without capacity drop.
🔌 PTC Thermal Cutoff
Positive Temperature Coefficient device provides a final hardware fail-safe. If all other protections are bypassed, PTC physically disconnects the circuit at extreme temperature.
📋 Verified Technical Specifications
Compatible With
iPhone 15 Pro Max
Battery Type
Lithium-Polymer (Li-Po)
Cycle Count
0 (Brand New)
Diagnosable
Yes — Repair Assistant
Model Numbers
A2849, A3105, A3106, A3108
Included
Battery + Adhesive Strips
📱 Compatibility — iPhone 15 Pro Max Only
This battery is designed for the iPhone 15 Pro Max (6.7-inch, 2023) only. It will not fit the iPhone 15 Pro, iPhone 15, iPhone 15 Plus, or any previous model. The battery dimensions, connector, and BMS calibration data are specific to the iPhone 15 Pro Max chassis. Confirm your model before ordering.
✅ iPhone 15 Pro Max (6.7-inch, 2023)
A2849 — International (incl. Australia)
A3105 — United States, Canada
A3106 — China mainland
A3108 — Japan
❌ Does NOT Fit
iPhone 15 Pro — smaller, different battery
iPhone 15 / iPhone 15 Plus — standard model
iPhone 14 Pro Max — different generation
Any other iPhone model
To confirm: Settings → General → About → Model Name. Must show "iPhone 15 Pro Max." Australian model is A2849 (AU model).
⚠️ iPhone 15 Pro Max — Battery Access Requires Screen Removal
Unlike the iPhone 14 / 14 Plus which opens from the back, the iPhone 15 Pro Max requires the front display to be removed first to access the battery. Strong display adhesive holds the screen in place. Wrong steps can crack the OLED display or damage the titanium frame. Professional installation is strongly recommended.
Tools Needed (DIY)
Pentalobe P2, Phillips screwdrivers, suction handle, opening picks, heat gun for display adhesive. Isopropyl alcohol 90%+ for adhesive cleaning on reassembly.
Included in the Box
Pre-tested Greencell Diagnosable Li-Po battery and a full adhesive strip set. Installation tools are not included and must be sourced separately.
In-Store Installation Available
Visit Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078. Our technicians install the battery and run Repair Assistant before the phone leaves the store.
👥 Who Replaces Their iPhone 15 Pro Max Battery?
The iPhone 15 Pro Max is a flagship device built around ProRes video, advanced photography, and all-day battery life. When the battery degrades, these are the people who choose replacement over upgrade.
🏪 Independent Repair Shops
iPhone 15 Pro Max is a common battery repair job. Shops use Greencell Diagnosable so the customer leaves with iOS Health at 100% and no "Service Recommended" warning — a professional result.
📱 Phone Refurbishers
A refurbished iPhone 15 Pro Max with iOS Health at 100% commands significantly higher resale value. The Greencell Diagnosable is the standard for resale-grade restoration.
🎬 Content Creators
The 15 Pro Max is a professional video tool — ProRes, Action Camera mode, and 4K 120fps drain the battery hard. Creators who rely on it for work cannot afford poor battery life on shoot days.
💼 Business & Power Users
Users who invested in the 15 Pro Max for its capabilities choose replacement over upgrading. Restoring full 4422mAh capacity costs a fraction of a new device.
🏕️ Outdoor & Travellers
Hikers, travellers, and outdoor users who chose the Pro Max for its battery longevity. A replacement restores the all-day capability that made them buy it.
🎓 Students & Budget-Conscious Users
A battery replacement extends the useful life of an iPhone 15 Pro Max by two or more years at a fraction of the upgrade cost.
🏙️
Brisbane Technical Hub
Stocked and dispatched from Forest Lake QLD. In-store iPhone 15 Pro Max battery installation at Shop 3A — Repair Assistant run before you leave.
152 Woogaroo St, Forest Lake QLD 4078
🛡️
Authenticity Guaranteed
Genuine Greencell Diagnosable. CE and ROHS certified. 0-cycle, full capacity. Passes Repair Assistant. 12-month warranty.
📦
Reliable Dispatch
Ships within 2–4 business days from Brisbane. Individually tested before dispatch. Adhesive strips included. Australia-wide delivery with tracking.
💳 Payment & Shipping
Pay Your Way
Afterpay and Klarna available at checkout. Split your purchase into easy instalments.
Australia-Wide Delivery
Ships within 2–4 business days from Brisbane. Individually tested before dispatch. Australia Post tracking included.
Frequently Asked Questions
What does "Diagnosable" mean for the Greencell iPhone 15 Pro Max battery?+
Standard aftermarket batteries trigger a "Service Recommended" warning in iOS Settings, hiding the battery health percentage entirely. The Greencell Diagnosable battery includes a BMS chip that communicates directly with the iPhone 15 Pro Max motherboard. It sends the correct identification data required for Apple's Repair Assistant to complete its check. After that process, Settings → Battery → Battery Health displays a real percentage — starting at 100% for a brand new 0-cycle battery — and no warning message appears.
Will battery health show 100% after installation?+
Yes. After running Repair Assistant, iOS Battery Health shows correctly. Greencell Diagnosable batteries are brand new with zero charge cycles — they display at or near 100% health. The exact number depends on iOS calibration. A 0-cycle full-capacity battery always shows a high reading. To run Repair Assistant: Settings → General → About → Parts & Service → Restart & Finish Repair. Wi-Fi required. The process completes automatically after the restart.
Why might Repair Assistant fail to complete?+
Apple's Repair Assistant checks all main components — not just the battery. If the screen, cameras, or Face ID sensor were previously replaced with non-genuine parts, the check may not finish. This is a limit of Apple's software, not the battery. The Greencell Diagnosable battery itself still charges and works at full 4422mAh capacity regardless of whether Repair Assistant completes. Battery performance is not affected.
Is the iPhone 15 Pro Max battery hard to replace?+
More complex than earlier models. Unlike the iPhone 14 and 14 Plus which allowed back glass removal to access the battery directly, the iPhone 15 Pro Max requires the front display to be removed first. Strong display adhesive holds the OLED screen in place — heat is required to soften it. Wrong technique can crack the screen or damage the titanium chassis. Professional installation is strongly recommended. Our Forest Lake store performs this repair — call 0480 039 913 to discuss.
Can I install this battery myself at home?+
Technically possible for experienced technicians, but not straightforward. The display must come off first using heat and careful prying — incorrect technique damages the OLED screen or titanium frame. You need Pentalobe P2, Phillips screwdrivers, suction handle, opening picks, and a heat gun. The included adhesive strips are used to resecure the battery during reassembly. If you are not confident with display adhesive removal, bring the phone to Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078.
What is the capacity and voltage of this battery?+
The Greencell Diagnosable battery for iPhone 15 Pro Max is rated at 4422mAh capacity, 3.869V nominal voltage, and 17.11Wh energy output. This matches the specifications of the original iPhone 15 Pro Max battery. Every unit ships with 0 charge cycles — full capacity from day one. No degraded cells, no hidden wear from storage or testing.
Does this battery fit the iPhone 15 Pro (not Pro Max)?+
No. The iPhone 15 Pro uses a smaller battery with different dimensions and a different connector. The iPhone 15 Pro Max battery cannot be fitted into the Pro chassis. Using the wrong battery risks connector damage and incorrect BMS data. Always check the model name at Settings → General → About before ordering. If it says "iPhone 15 Pro Max" (not simply "iPhone 15 Pro"), this battery is the correct one.
Are adhesive strips included in the package?+
Yes. Every Greencell Diagnosable iPhone 15 Pro Max battery includes a full adhesive strip set. The iPhone 15 Pro Max uses pull-tab adhesive strips to secure the battery inside the chassis — these must be replaced after a battery swap. The included strips are pre-cut for the iPhone 15 Pro Max. No separate adhesive purchase is required. Tools (screwdrivers, suction handle, heat source) are not included and must be sourced separately, or use our in-store installation service.
What warranty does this battery carry?+
The Greencell Diagnosable iPhone 15 Pro Max battery carries a 12-month warranty covering manufacturing defects — capacity failures, swelling, or BMS faults under normal use. Warranty excludes physical damage, water ingress, or faults from incorrect installation. Australian Consumer Law rights apply independently. To make a claim, contact JPC Mobile at Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078, or call 0480 039 913. We assess all claims in line with ACL obligations.
Can your Forest Lake store install this for me?+
Yes. JPC Mobile performs iPhone 15 Pro Max battery replacements at Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078. Order the battery online and bring your iPhone, or call ahead to check in-store availability. We are open Monday to Friday 9am–5pm and Saturday 10am–5pm. Our technicians install the battery, run Repair Assistant, and verify iOS Battery Health before the phone leaves the store. Pay your way — Afterpay and Klarna available at checkout.
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🏪 JPC Mobile — Greencell iPhone 15 Pro Max Battery — Brisbane
Genuine Greencell Diagnosable 4422mAh battery. 3.869V, 17.11Wh. CE and ROHS certified. Passes Repair Assistant. iOS Health 100%. 12-month warranty. Adhesive strips included. Ships from Brisbane.
Walk in at Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078 — in-store iPhone 15 Pro Max battery installation available.
🔬 BMS Diagnosable — Repair Assistant ⚡ 4422mAh — 12-Month Warranty 🚚 Ships 2–4 Business Days
📍 Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078 — Mon–Fri 9am–5pm | Sat 10am–5pm
