Low Power Mode or Battery Saver does not normally switch off an eSIM, but it can reduce background activity, delay synchronisation and restrict apps when the screen is off.
If notifications stop while websites still load, the cellular connection is working and the problem is probably the battery policy rather than the eSIM.
Do not delete the profile or reset network settings before performing a direct data test.
Quick answer: Turn Wi-Fi off and test a webpage. Temporarily disable Low Power Mode, permit essential apps to run in the background and check again. If all data fails, verify the eSIM data line, roaming, plan and network registration.
Separate app delay from connection failure
- Turn Wi-Fi off.
- Open a browser and load a new page.
- Open the affected app manually.
- Disable battery saving temporarily.
- Repeat the same tests.
If only background updates fail, review the app’s battery and mobile-data permissions. Do not change the APN.
Allow essential travel apps
Navigation, transport alerts and messaging may need background access. Exempt only those apps, while leaving cloud backup, social video and automatic updates restricted.
The background-data guide helps balance connectivity with allowance protection.
Check the mobile connection if everything fails
Confirm the travel eSIM is enabled and selected for data, apply its required roaming setting and leave network selection automatic. Toggle airplane mode once.
If NoveSIM needs manual APN entry, use data.esim. Follow the no-internet checks if signal remains without data.
Manage battery during travel
Weak signal, hotspot use and navigation can drain power quickly. Carry a power bank and download maps on Wi-Fi rather than disabling essential connectivity.
For shared connections, review hotspot battery and data use. NoveSIM plans are data-only.
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FAQ
Does Low Power Mode disable eSIM?
Not normally. It usually limits background tasks rather than switching off the line.
Why do notifications arrive only when I open the app?
Battery restrictions may pause background refresh until the app becomes active.
Should I keep Battery Saver off?
Only if essential apps cannot work reliably with suitable exceptions. Otherwise it can help preserve battery.
Should I reinstall the eSIM?
No. Test the connection and app restrictions while keeping the profile installed.
Final Recommendation
Use a direct browser test to determine whether Low Power Mode affected apps or the complete connection.
Grant limited exceptions to essential services and troubleshoot the eSIM itself only when all mobile data fails.

