How Long Do Phone Battery Last. The average battery life of a cordless telephone is about 1 to 2 years. To calibrate your phones battery.

As you charge and discharge your battery it degrades and over time you get less battery life from a full charge. This doesnt use alot of power and most smart phones today could last probably 34 weeks doing this easily provided you dont actually the use the phone. Use these features for more than a few hours though and your phones battery charge may not last longer than a day.
However this will also depend on the cell phone capacity.
Tips For Prolonging Your Cell Phone Battery Life. Lithium-ion batteries like the ones youll find in a Samsung Galaxy S or Note series phone can degrade over time with expected life spans of just 2 to 3 years. On average a cell phone battery is supposed to last for around a year at least according to Business Insider. Understanding the iPhone 6 Battery and What it Has to Offer.

