Lithium-ion battery is a great common battery. They  are widely used in our daily life. They have a limited life, they slowly degrade from the day they are first made. A manufacturer will rate a notebook battery to the point where it holds 50% of its original capacity. At this point you should consider replacing the battery.

Li-ion batteries are not as durable as nickel metal hybride or nickel-cadmium designs and can be extremely dangerous if mistreated.One important thing li-ion batteries repairs do not suffer from the memory effect. They also have a low self-discharge rate of approximately 5% per month, compared with over 30% per month in nickel metal hydride battery repairs and 10% per month in nickel cadmium batteries. They are usually more expensive. Lithium ion batteries can be formed into a wide variety of shapes and sizes, so as to efficiently fill available space in the devices they power, but li-ion batteries repairs are lighter than other equivalent secondary batteries.

The energy is stored in these batteries repairs through the movement of lithium ions. Lithium is the third lightest element, giving a substantial saving in weight compared to batteries using much heavier metals. However, the bulk of the electrodes are effectively “housing” for the ions and add weight, and in addition “dead weight” from the electrolyte, current collectors, casing, electronics and conductivity additives reduce the charge per unit mass to little more than that of other rechargeable batteries. The forte of the Li-ion chemistry is the high open circuit voltage in comparison to aqueous battery repairs (such as lead acid, nickel metal hybride and nickel cadmium).

Don’t expose the battery repairs to excessive heat or cold. Don’t store the battery in a fully charged state (store batteries with about 50% charge).Don’t allow a nearly flat battery to be unused for more than a month or so. The battery will slowly discharge until it becomes fully discharged and this will permanently damage the battery repairs. Don’t charge your Notebook/Tablet PC inside a carry case – the battery may overheat. Don’t charge your Notebook/Tablet PC when stacked on top of each other – the battery may overheat.

Whenyou receive a new NoteBook or Tablet PC, leave the battery to fully charge overnight. Condition a new battery by using it until it is fully discharged, and then re-charge it fully. Doing this once a month will help to accurately calibrate your battery repairs. Always ensure the battery repairs are recharged as soon as possible after it becomes fully discharged. Battery repairs will be permanently damaged if left for an extended length of time in a fully discharged state. Remember that a Lithium-Ion battery will slowly deteriorate; a new battery will always perform better than one that is 6-months old. Remember that the battery half-life is rated for a certain total number of charge/discharge cycles (see your User Manual or Quick Start Guide for the rating). For example, battery repairs that are rated for 3 hours and 500 charge/discharge cycles, will still be considered as within specification, even if it only lasts for 1 hour 45 minutes after 500 charge/discharge cycles. Heat is the worst enemy of a battery repairs. Allow plenty of air to circulate around the Notebook/Tablet PC, so that the battery repairs are kept as cool as possible when charging and also when in use. If provided, use the integrated ‘legs’ under the Notebook to raise the notebook and improve air circulation. Remove the battery repairs if storing for several months (the battery should be at approximately 50% charge or higher).

Everyone should remember that our battery is slowly degrading all the time, even if it is not in use. Keeping your battery as cool as possible will slow down this degradation considerably.