iPhone Battery Replacement, Fresh Power by Mail

New battery installed and tested — flat rates from $69 to $109 by model, return shipping included.

The symptoms

Battery Health in the low 80s or worse. A phone that dies at 30%, shuts down in the cold, or crawls because iOS is throttling a tired battery to keep it alive. If Settings → Battery → Battery Health says “Service,” your battery is telling you itself. And if the screen or back is bulging, stop charging it and get it repaired promptly — a swollen battery is the one symptom that shouldn't wait.

Why batteries wear out

Lithium batteries are consumables: every charge cycle slightly reduces capacity, and after a few hundred cycles the chemistry simply holds less. No setting or app recovers worn capacity — the fix is a new cell, and it makes an old iPhone feel dramatically newer.

What we install — and one honest note

We install a new, tested battery and verify charging, capacity reporting, and power delivery before return shipping. One thing worth knowing upfront: on newer iPhones, iOS displays a “parts and service” notice in Settings for any battery Apple didn't install itself — including high-quality ones. It's informational only; charging, battery life, and every feature work fully. We'd rather you hear that from us than discover it in Settings.

Priced by model, everything included

Pick your model group below — the price includes the battery, installation, testing, and tracked return shipping, with a 48-hour bench turnaround and a 90-day warranty.

iPhone 8 / SE & older — $69 iPhone X–13 — $79 iPhone 14–16 — $89 iPhone 15/16 Pro — $99 iPhone Air — $109

48-HR BENCH TIME · 90-DAY WARRANTY · TRACKED RETURN INCLUDED · UNFIXABLE = REFUNDED

Common questions

How do I know if my battery actually needs replacing?

Check Settings → Battery → Battery Health. Below roughly 85%, or any “Service” message, and you'll feel the difference from a new battery. Random shutdowns above 20% are the other giveaway.

Will my data be affected?

No — a battery swap doesn't touch storage. Your photos, apps, and settings come back exactly as you left them. Backing up before any repair is always smart practice, but nothing about this repair requires it.

Why does iOS show a battery service message afterward?

Apple's software flags any battery it didn't install itself, regardless of quality — it's a notice, not a malfunction. Battery percentage, charging, and daily use all work normally, and we test everything before shipping back.

My battery is swollen — can I still mail it?

Contact us first at repairs@isaacselectronics.com or (540) 645-3510. Swollen batteries need a little extra care in packing, and we'll walk you through shipping it safely.

iPhone guides: Screens · Batteries · Charging port · Back glass · Cameras
Switch guides: Joy-Con drift · Charging port · Screens · Game card reader · Fan & overheating
How mail-in works · All repair pricing