First: Some tricks to help rechargeable battery life extension of several years

1. Do not waste charging cycles

Each battery has a specific life, usually referred to as the charge cycle or battery cycle. In short, the battery has a specific number of charge - discharge cycle, beyond the limit it is no longer suitable for use.

Some hardware manufacturers will release cycle numbers, others will not. For example, Apple said its iPhone battery to complete the 500 charge - discharge cycle, the charge will be reduced to 80% of the original battery. While the MacBook Pro or MacBook Air after the completion of 1000 cycles, the amount of charge will be reduced to 80%.

Some people think that they can avoid the charge-discharge cycle by periodically charging the battery so that the battery always remains in the non-fully discharged state. Unfortunately, you can not change the physical rules.

If you only let the battery discharge 25%, then 4 times will be completed a cycle. If you discharge 20%, you need to complete a cycle 5 times.

All you have to do is prevent wasteful cycles and make sure the equipment is charging when necessary. However, do not always charge the battery, it will lead to overheating of the battery, this approach itself is harmful to the battery, such as when the battery use in solar powered portable generator.

In other words, do not let the battery go through an unnecessary charge-discharge cycle. But I mean, do not always keep the device in a charged state, which is also harmful to the battery. Because the battery needs to regularly discharge, in order to maintain the internal chemical substances remain in good condition.

Just need to pay attention, do not waste charge - discharge cycle.