If you've got any tips of your own, let me know that too!
You can also switch on Low Power Mode quickly by using Siri. " Note: On i Phone 8 and i Phone X, Low Power Mode also reduces the frequency of GPS updates, If even Low Power mode isn't enough — you're stuck in the wilderness, at a conference with poor reception and no power — there are a few other hacks you can try. If it's winter, try not to leave your i Phone on a heater or in front of a hot air vent, even in your car.
If your i Phone gets too hot, it will gate itself by reducing screen brightness and otherwise trying to reduce power as much as possible — and, eventually, give you a heat warning and turn itself off to prevent damage. Likewise, when you go to sleep at night, use a low power, slower charger.
But if you've just updated to i OS 11, or you're upgrading to an i Phone 8, you might see a serious drain on your battery power.
Rather than cursing and throwing your i Phone — as much as you might want to!
If you see Facebook there and it says 4% on screen and 40% on background, it's a sign something has gone wrong.