In fact, every battery has a finite life. And at the end of its life cycle the battery meets its death. The factors affecting battery life cycle are time, temperature and cycle life.
Each round of full and then full recharge is called battery cycle life. A battery’s cycle life can range from 500 to 1200. That means a life cycle of 18 months to 3 years for a typical battery.The battery doesn’t die suddenly upon reaching its maximum cycle life. It starts deteriorating faster and its capacity to be recharged fully decreases. You will find yourself recharging very frequently.
Time Kills a Battery
Time and tide wait for none. And same is the case with a battery. Whether you use it or not, the battery will deteriorate with time and eventually die.
Temperature affects both performance and life cycle of a battery (Battery and Temperature).
A rechargeable battery has a finite life cycle before it becomes unusable. You can extend this by proper maintenance, correct operating temperature, and regular but correct use.