YOUR iPhone has four easy-to-miss modes with a dizzying array of perks – from boosting battery life to upgrading your bedroom. I’m The Sun’s tech expert, Sean Keach, and I’ve got ...

If you go to Settings -> Battery on your iPhone, you can see a lot of stats ... It will be marked red when battery percentage falls below 20%. It will be marked yellow if Low Power Mode is enabled.

In fact, this iOS setting can be quite useful in just about any situation where you might want more battery life. It limits ...