Your iPhone dies before lunch. It shuts off at 30 percent. Maybe a yellow “Service” warning sits in Battery Health under Settings. You do not need a new iPhone. You need a new battery, paired correctly. We do iPhone battery repair at our Sterling shop the same day for most models. Premium-quality cells. No “Unknown Part” warning. 30-day warranty. Walk in any day.
We handle every iPhone from iPhone 8 forward. Below is the model list with general pricing. Exact price depends on your specific model and what else needs attention. We give a free written quote before any work starts.
| iPhone Model | Battery Type | Price Range |
|---|---|---|
| iPhone 8, 8 Plus, SE 2020, SE 2022 | Standard cell | $69 to $89 |
| iPhone X, XR, XS, XS Max | Pre-pairing cell | $79 to $99 |
| iPhone 11, 11 Pro, 11 Pro Max | Paired cell (chip) | $79 to $109 |
| iPhone 12, 12 Mini, 12 Pro, 12 Pro Max | Paired cell | $89 to $119 |
| iPhone 13, 13 Mini, 13 Pro, 13 Pro Max | Paired cell | $99 to $129 |
| iPhone 14, 14 Plus, 14 Pro, 14 Pro Max | Paired cell | $109 to $139 |
| iPhone 15, 15 Plus, 15 Pro, 15 Pro Max | Paired cell + Cycle Count | $119 to $149 |
| iPhone 16, 16 Plus, 16 Pro, 16 Pro Max | Paired cell + Cycle Count | $129 to $159 |
| iPhone 17, 17 Pro, 17 Pro Max | Paired cell + Cycle Count | $139 to $169 |
Prices are current as of 2026. Call for the exact price on your specific model.
Cost depends on the model and a few situation-specific factors. Here is how the final number is built.
Older iPhones like the 8 and SE have smaller cells and the parts cost less. Pro Max models have larger cells that cost more. iPhone Mini models have unusual cell shapes and run about the same as the Pro models.
A clean iPhone with no water history is the cheapest case. If your phone has water damage inside, we add a cleaning step before the new cell goes in. That adds a small cost and protects the new battery from spreading corrosion.
A swollen cell costs the same to replace, but the removal takes more care. The cell pushes against the screen and the back glass. We charge the standard rate and flag any frame damage during disassembly.
You can take the work to Apple too. Here is the honest comparison.
If you have active AppleCare Plus and your Battery Health is below 80 percent, Apple free service is the best deal. For everyone else, we save you the appointment wait with same-day walk-ins.
iPhones have iOS features and battery chips that other phones do not have. A proper repair handles each one correctly. Cheap shops cut corners on these steps.
Apple started pairing batteries to the phone logic board starting with iPhone 11. The cell carries a chip that the phone reads at boot. If a replacement cell is not paired during the swap, the phone shows a yellow “Service” or “Unknown Part” message in Settings Battery Health forever. We pair every cell using authorized trade tools. The warning never appears.
After our repair, the Battery Health screen reads 100 percent. Cycle Count starts at 0. Manufacture Date shows the current date. Apple same-day service does this too. Cheap shops cannot pair the cell, so the screen either keeps showing the old reduced number or pops a “Service Needed” warning.
Optimized Battery Charging is the iOS feature that learns your charging habits and slows the last 20 percent of the charge to extend cell life. The feature uses the pairing chip. With a paired cell, this feature keeps working. Without pairing, iOS turns it off because it does not trust the cell.
iOS 17.4 and newer shows Battery Cycle Count on iPhone 15 and later. After our repair, Cycle Count starts at 0 and Manufacture Date shows current. Cheap shops trigger a “Service” warning on this same screen.
Watch for these iPhone-specific indicators. For the full list of battery warning signs and the emergency steps for a swollen cell, see our phone battery replacement page.
Open Settings, then Battery, then Battery Health. If the number is under 80, Apple own recommendation is to replace the cell.
This means your cell has degraded sharply or it is not pairing correctly. Replace soon. The warning only gets worse.
A worn cell cannot push the voltage during heavy moments like camera flash or fast app loads. The phone goes from 30 percent to dead in seconds.
A healthy iPhone hits 50 percent in 30 minutes with a 20W charger. If it takes over an hour, the cell is breaking down.
A healthy iPhone is cool when idle. A failing cell warms up while just sitting on the table. This is a sign the internal resistance is rising.
Serious. A swollen iPhone cell is a fire risk. Bring it in the same day. Do not charge it. Do not press on the screen or back glass.
Most jobs finish in 30 to 45 minutes. Here is the step-by-step.
We pull the actual cycle count and health number from the chip itself, not just the iOS Settings reading.
Anti-static mat. Controlled heat to soften the screen adhesive. No prying near the battery.
Isopropyl alcohol softens the battery pull-tabs. No prying. No metal tools near the cell.
Same voltage, same capacity, same charge rate as the original Apple cell.
Done with authorized trade tools. The “Unknown Part” and “Service” warnings never appear in Settings.
Reading goes to 100 percent. Cycle Count starts at 0. Manufacture Date shows current.
Fresh adhesive to keep the water-resistance rating intact.
30-day warranty on parts and labor. Old cell disposed safely through a certified recycler.
Time depends on the model and what else is happening with the phone.
iPhone 8, X, 11, 12, 13 take 30 to 40 minutes from start to finish. Done while you wait.
Models with extra adhesive take 40 to 60 minutes. The extra time is for careful adhesive removal.
Water-damaged or swollen-battery iPhones can take up to 90 minutes. The extra care is for safety.
We are based in Sterling, VA. Same-day service for most iPhone models. Call us at (703) 594-9339 on your way over.
Customers walk in from Sterling, Ashburn, Herndon, Dulles, South Riding, Cascades, Potomac Falls, and the rest of Loudoun County. Call first to confirm we have your specific model cell in stock before you drive over.
Everything you need to know before coming in. Still have questions? Call (703) 594-9339 any day.
We are open every day. No appointment needed. The free Battery Health diagnostic takes ten minutes. Most repairs are done while you wait. Premium-quality cells. No “Unknown Part” warning. 30-day warranty. Trusted by 443 plus reviewers since 2013.
