Battery percentage jumping or inaccurate
Your phone's battery gauge is confused about how much battery you actually have. This is a sensor that needs recalibrating, not a broken battery.
Your phone estimates battery percentage by checking voltage. Over time this sensor gets out of sync with what's really in the battery. It's like a fuel gauge that reads half-full when you're actually at quarter-full. The battery works fine, your phone just doesn't know what it has.
Risk: Low
⏱ 5-30 minutes plus one full charge cycle
Beginner
Fix-IT-Bot will walk you through each step — just tap, no typing needed.
Skip — I just want a technicianCommon mistakes to avoid
- Charging to 100% constantly — this wears batteries faster. Keep it between 20-80% when possible.
- Interrupting the drain-and-charge by using the phone while it's charging — it won't work if you don't let it complete
Signs you need professional help
- Battery percentage is still wrong after a full drain-and-charge cycle
- Battery health shows Poor and your phone shuts down unexpectedly
- Your phone is more than 3 years old and this is a new problem
Book a technician
We can fix most issues remotely in 15 minutes. Weekend appointments — book your slot and we handle the rest.
Can't fix it yourself?
Most issues are resolved remotely in 15 minutes. Weekend appointments only — no parts, no in-home visit needed.