Phone Battery Replacement in Manchester, CT
Worn-out batteries swapped to restore all-day battery life and reliable charging. We install fresh, high-quality batteries and recalibrate the charge gauge so your phone holds a full charge and stops shutting down unexpectedly. Lithium-ion cells lose capacity with every charge cycle — typically holding only about 80% of their original capacity after a few hundred cycles — which is why an aging phone dies early or shuts off in the cold even when everything else still works fine. Tech Genius handles phone battery replacement for customers across Manchester, CT and nearby towns, typically while you wait.
Devices we cover: iPhone, Samsung Galaxy, Google Pixel, and most Android phones.
Common phone battery replacement problems we fix
- Battery drains fast or dies early
- Phone shuts off above 20%
- Swollen battery lifting the screen
- Slow charging or overheating
Call (860) 869-1361 for a quote, or visit us in store.
Phone Battery Replacement — questions
How do I know I need a new battery?
If your phone dies before midday, shuts off unexpectedly, or the screen is bulging, the battery is failing and should be replaced.
Will I lose my data?
No — a battery replacement does not touch your photos, apps, or data.
Will my iPhone still show Battery Health after the swap?
On iPhone, Settings shows a Maximum Capacity percentage and, with some replacement cells, an "unknown part" service note; we tell you up front which grade clears that message for your model. Samsung and Pixel phones do not show a capacity percentage, so we measure the cell on a battery tester instead.
Is a swollen battery dangerous?
Yes — a swelling lithium-ion battery pushes the screen up off the frame and can be a fire risk. Stop charging it, do not press on it, and bring it in so we can remove and replace it safely.