Battery service
Battery replacement
A failing battery is the most common reason a good phone, laptop, tablet or watch starts feeling broken. We replace it, and because we are a board-level lab, we check the charging circuit behind it so the new cell actually holds. Walk in at our Arlington, VA lab, or mail your device in from anywhere in the US.
Battery replacement at WeFixed covers phones, laptops, tablets and smartwatches at our Arlington, VA lab, walk-in or mail-in from anywhere in the US. Because we are a board-level lab, we also check the charging circuit so the new cell actually holds, and remove swollen batteries safely. Many phone and watch swaps are same-day.
A lithium battery wears out — it loses capacity, drops voltage under load, and eventually shuts the device down before the charge reads empty, especially in the cold. We replace batteries in phones, laptops, tablets and smartwatches, and we deal with the dangerous ones: a swollen battery is gassing internally and can ignite if it's pierced or crushed, so it needs careful removal, not a pry tool and luck. Because we repair logic boards for a living, we also verify the charging circuit so you're not paying for a new battery that a failing charging IC will kill in a month.
Battery cell options
| Factor | OEM / genuine | Quality aftermarket |
|---|---|---|
| Warranty | 1 year | 1 month |
| Capacity match | Original spec | Close, reliable |
| iPhone health screen | More likely shown | May show warning |
| Best for | Long-term keeper | Budget-friendly swap |
We tell you which cell your device gets before any work, and always check the charging circuit behind it.
Signs of a board-level fault
- Battery health at or below 80%, or a "Service Recommended" message
- Phone shuts down randomly or dies at 20–40%, worse in the cold
- Swollen battery — a bulging back, lifted screen, or a trackpad that no longer clicks
- Won't hold a charge, or drains overnight while idle
- Laptop reads "plugged in, not charging" or runs only on AC power
- Charges slowly, gets hot while charging, or needs charging twice a day
Honest by default
Every board starts with a $65 diagnostic and a written report — exact cost and timeline before we touch it. The fee applies toward your repair.
Is a swollen battery dangerous, and what should I do right now?
Yes. Swelling means the cell is gassing internally, and puncturing or crushing it can cause a fire. Stop charging the device, power it down if you can, keep it away from anything flammable, and don't press on the bulge or try to pry the battery out yourself. Bring it to us or mail it in and we'll remove and replace it safely, then recycle the old cell properly.
My battery health is at 80% — do I actually need a new battery?
80% is the line where the device starts warning you, not a hard rule. If you're getting through the day fine, you can wait. If you're seeing random shutdowns, fast drain, or sluggish performance, those matter more than the number — and they often show up above 80% too. Our $65 diagnostic tells you honestly whether the battery is the real problem before you spend anything on the swap.
Will my iPhone still show a battery warning after a replacement?
It can. On newer iPhones, Apple's software shows a "Service" or "Unknown Part" message and hides the battery health screen unless the new battery is authenticated to that phone — which only Apple and Apple-authorized providers can do. We use genuine or high-grade OEM-equivalent cells and tell you up front which one your repair gets, and exactly what message, if any, to expect afterward. The battery still works fully; the warning is a software lock, not a fault.
I replaced my battery already and it still won't hold a charge — can you help?
Often, yes, and this is where a board-level shop matters. If a fresh battery still won't charge or hold, the fault is usually on the logic board — a failed charging IC, a shorted line, a blown SMD fuse, or a bad DC-in circuit, not the battery. We diagnose the charging circuit under a microscope and repair the component itself, so you're not stuck buying battery after battery.
What does a battery replacement cost, and how long does it take?
Every job starts with a $65 written diagnostic — the most thorough in the area, not the fastest — and that fee goes toward the repair. A straightforward phone or watch battery is often same-day; laptops and tablets depend on the model and part. You get the exact cost and timeline in writing before we do any work.
What batteries and warranty do you use?
We use genuine or OEM-equivalent cells and always tell you which one your device is getting. OEM batteries carry a 1-year warranty; aftermarket cells and labor carry a 1-month warranty. We don't fit no-name batteries we wouldn't put in our own devices.
Why a board-level shop replaces batteries differently
Most shops swap the cell and hand it back. We are an independent board-level lab — for 11 years our core work has been the charging circuits and power ICs that sit behind the battery — so when we replace one, we check that the device is actually charging it correctly, not just that a new battery is installed. That's why a new battery from us holds, why we can save a device a battery swap alone wouldn't fix, and why we'll handle a swollen cell safely instead of treating it like a routine part. We'll also tell you honestly when the battery isn't the real problem.