iPhone 14 Plus Battery Replacement: Cost & DIY Guide
An iPhone 14 Plus battery replacement costs about $99 at Apple out of warranty, $89 to $139 at a local repair shop, or roughly $35 to $55 if you buy the 4325 mAh cell and fit it yourself. The 14 Plus was Apple's endurance king when it launched — the longest-lasting iPhone of its generation — so when the battery fades, the disappointment is sharp. A phone that used to sail through a day and a half suddenly needs a top-up by dinner. A fresh cell brings that stamina straight back.
What follows is the full picture: how to read your battery's real health, the signs it's wearing out, an honest cost breakdown, and exactly what the DIY swap involves. Our whole reason for being here is simple — a tired battery is a consumable, not a reason to junk a phone that still does everything you ask of it.
How to check iPhone 14 Plus battery health
Open Settings > Battery > Battery Health & Charging and look at Maximum Capacity. That number is the percentage of the original 4325 mAh your battery can still hold. Brand new it reads 100%. Apple considers a cell worn once it drops to 80% or below, and on a big-battery phone like this, every lost percentage point of a 4325 mAh pack is a real chunk of screen time you can feel.
While you're on that screen, check two more details:
- Peak Performance Capability — a note here means iOS has already throttled the A15 Bionic at least once to dodge an unexpected shutdown, a telltale sign of an aging cell.
- Cycle count — the 14 Plus battery is rated to keep roughly 80% capacity through about 500 full charge cycles. Because the pack is so large, many owners take well over two years to reach that mark, which is exactly why a battery swap gives this model such a genuine second life.
Why the 14 Plus fade feels so dramatic
The 14 Plus built its whole reputation on battery life. Owners stopped thinking about charging altogether. So when capacity slides to 85% or 80%, the contrast with that carefree all-day-plus experience is jarring — far more noticeable than on a smaller iPhone that never promised as much. The 6.7-inch display draws real power, and a worn cell has nowhere to hide behind it. If your iPhone 14 Plus battery is draining fast, this is almost always the cause.
Signs your iPhone 14 Plus battery is failing
These symptoms usually show up together rather than one at a time:
- Endurance roughly cut in half — the loudest complaint on this model, precisely because the original runtime was so long.
- Shutdowns above 20% — the phone dies with charge still on the meter, most often in cold weather.
- Sluggish performance — scrolling and app launches feel slower as iOS protects a weakening cell.
- Extra warmth while charging — the frame runs hotter than it used to.
- Battery swelling — the screen or back glass lifts at an edge. Stop charging and using the phone immediately; a swollen cell is a fire and safety hazard and must be replaced right away.
- Jumpy percentage — the meter sticks, then drops several points in one step.
Spot two or three of these alongside a Maximum Capacity under 85%, and the diagnosis is clear: it's the battery, not the phone. A $35 part stands between you and another two years of use.
iPhone 14 Plus battery replacement cost
Here's the 2026 lay of the land for the three routes most people take. Ranges are typical for the US and shift with your shop and region.
| Option | Typical cost | Turnaround | Notes |
|---|---|---|---|
| Apple (out of warranty) | $99 | Same day to 1 week | Genuine Apple battery, keeps the Battery Health readout intact |
| Local repair shop | $89–$139 | 30 min to same day | Quality depends on the shop and which battery brand they fit |
| DIY with PhonePartPro battery | $35–$55 in parts | 1–1.5 hrs your time | Battery plus a reusable tool kit; you supply the labor |
If you carry AppleCare+ and your Battery Health has fallen under 80%, Apple replaces it free — so confirm that before you pay anyone. Without coverage, the gap is wide: what Apple and a shop charge is mostly labor, while the DIY route only costs you the iPhone 14 Plus replacement battery and a tool set you keep for the next repair. For a big-battery phone that still holds solid resale value, spending about $40 to add years of life is the obvious call. That also answers the "iphone 14 plus battery replacement near me" search for anyone comfortable with the swap — the nearest option is your own kitchen table.
The exact battery your iPhone 14 Plus needs
The iPhone 14 Plus uses a 4325 mAh lithium-ion battery at 3.87V — the biggest cell in the entire iPhone 14 lineup, larger even than the 14 Pro Max. Match that capacity exactly. A cell that quietly comes in under 4325 mAh will hand back less of the endurance you're paying to restore, and no honest battery claims more capacity in the same casing. When you shop for an iPhone 14 Plus OEM battery, capacity is the spec that matters.
The 14 Plus was sold under four model numbers across regions: A2632 (US), plus A2885, A2886, and A2888. They all take the identical battery, so you never need to match the part to the model number — check yours in Settings > General > About if you're curious, but any 14 Plus battery fits any 14 Plus. You can see everything we stock in the replacement batteries collection.
How to replace an iPhone 14 Plus battery yourself
Here's a bit of good news the 14 Plus inherited from its generation: the iPhone 14 line was redesigned to open from the back glass, not just the screen, making battery access easier than on the 13 and earlier. Still, this is a moderate repair with delicate cables and adhesive — plan on an hour to ninety minutes in a clean, well-lit spot.
What you'll need
- Pentalobe P2 and Tri-point Y000 screwdrivers
- Suction handle and thin opening picks
- Plastic spudger and tweezers
- Heat source (hair dryer or heat pad) to soften the adhesive
- Isopropyl alcohol to help release stubborn adhesive
- Your replacement 4325 mAh battery and fresh adhesive strips
Step overview
- Power off and remove the two pentalobe screws at the bottom edge beside the charging port.
- Warm the rear glass and lift it free. The 14 Plus opens from behind — heat the edges evenly, cut the perimeter adhesive with a pick, and lift the back panel, minding the flex cable that tethers it.
- Disconnect the battery connector first. Remove its metal bracket and unplug it before you touch anything else — this is the non-negotiable safety step.
- Pull the adhesive strips. The large battery sits on several stretch-release tabs; pull each one slow and straight. On a cell this size a snapped tab is common — that's what the isopropyl alcohol is for, to float the battery loose gently.
- Fit the new 4325 mAh battery, reconnect, and power on to test before you seal anything.
- Lay fresh adhesive, reseat the rear glass, and refit the two screws.
The mistakes that trip up beginners are predictable: rushing the perimeter adhesive and cracking the glass, or snapping every adhesive tab at once. Neither ruins the repair, but both cost time. If the tethered panel makes you nervous, buy the battery here and let a shop install it — you still pocket the savings on the part.
The "Unknown Part" message after a non-Apple battery swap
Expect this, and don't be alarmed when it appears. Once you install a battery Apple hasn't paired to your specific phone — even an excellent one — iOS posts a notice reading "Unknown Part. Unable to verify this iPhone has a genuine Apple battery," tucked into Settings > General > About. At the same time, the Battery Health screen stops showing your Maximum Capacity percentage.
What that message actually means:
- No throttling. Your phone charges and runs at full speed.
- Not a verdict on quality. It's Apple's pairing system reacting to a battery serial it doesn't recognize, nothing more.
- You lose the capacity readout. This is the real downside — the built-in health tracker goes dark.
The alert shows once, then sits quietly in Settings. Only Apple's own service tools can pair a new battery's chip and clear it, which is the real reason an Apple replacement keeps the readout while a DIY or third-party swap doesn't. For most owners, saving $50 or more easily outweighs losing a number you can gauge yourself from how long the phone lasts.
Repair vs. upgrade: the greener math
When a phone won't hold a charge, the upgrade prompt starts to look tempting. Pause on it. The iPhone 14 Plus still runs the latest iOS, still shoots excellent photos and video, and still has years of updates ahead. The one part that's genuinely worn out is the battery — a component Apple always intended to be serviceable.
Most of a smartphone's lifetime carbon is spent building it, long before it reaches your hand, and every device retired early feeds the roughly 60 million tonnes of e-waste the world generates each year. A battery replacement sidesteps all of that — you keep hardware you already own, still worth good money secondhand, for about the cost of lunch out.
Repair over replace isn't only the frugal move; it's the responsible one. A new 4325 mAh cell turns a fading 14 Plus back into the endurance leader it was born to be. To confirm your model is in stock or find a battery for another device, our battery replacement by model guide covers every phone we carry.
FAQ
How much does an iPhone 14 Plus battery replacement cost?
Plan on about $99 at Apple out of warranty, $89 to $139 at a local repair shop, or roughly $35 to $55 if you buy the 4325 mAh battery and install it yourself. Apple does it free if you have AppleCare+ and Battery Health has dropped below 80%.
What is the iPhone 14 Plus battery capacity?
The iPhone 14 Plus uses a 4325 mAh lithium-ion battery at 3.87V — the largest cell in the whole iPhone 14 lineup. Choose a replacement that matches that capacity exactly. The same battery fits all model numbers: A2632, A2885, A2886, and A2888.
Why is my iPhone 14 Plus battery draining fast?
As the 4325 mAh cell ages past about 500 charge cycles, its Maximum Capacity slips below 80% and it holds far less charge. On a phone famous for its all-day-plus endurance, that decline feels dramatic. A new battery restores the original runtime.
Will replacing the battery trigger an "Unknown Part" warning?
Yes, unless Apple pairs the battery to your phone. iOS shows an "Unknown Part" notice and hides your Battery Health percentage. It does not throttle or damage your phone — the battery runs at full performance — and only Apple's tools can clear the message.
How hard is it to replace an iPhone 14 Plus battery yourself?
It's a moderate repair, but easier than older iPhones because the 14 line opens from the rear glass for better battery access. Budget an hour to ninety minutes. The tricky parts are cutting the perimeter adhesive without cracking the glass and releasing the battery strips without snapping them. Always disconnect the battery connector first.
Is it worth replacing the battery instead of buying a new phone?
For most people, yes. The 14 Plus still runs current iOS with years of support and strong cameras. A $35 to $55 battery restores full endurance for a fraction of a new phone's price, keeps a working device out of the landfill, and avoids the large carbon cost of manufacturing a replacement.