Misunderstanding of lithium battery discharge
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Lithium battery discharge put the more exhausted, battery consumption will be greater, Aike Lang University, to help the US space agency NASA research professor of electrical engineering prolong battery life Tom Ha ley, when it comes to filling the more full battery charge, battery The loss will be greater. Preferably lithium battery charge in the intermediate state, in that case the longest battery life.
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First, the high and low power state has the most adverse effect on the life of lithium batteries, and charge-discharge cycles but is secondary. In fact, most of the sale of the electrical or battery can be recharged identification number, are to discharge 8% for the benchmark obtained. Experiments show that, for some laptops lithium battery, often let the battery voltage exceeds the standard voltage .1 volts from 4.1 volts to 4.2 volts rises, then the battery life will be halved, and then improve .1 volts, the life expectancy is reduced to the original A one-third; long-term low battery or no battery charge status will make the internal resistance to the movement of electrons increases, thus leading to smaller battery capacity. NASA's Hubble Space Telescope NASA let the battery's power consumption is set at 1% of the total capacity, in order to ensure that the battery can be repeatedly charged and discharged 10,000 times without having to update.
ASUS K52J Laptop battery

Secondly, temperature has a greater influence on the lithium battery life (mobile phones and other small electronic devices on this point can be ignored). Subfreezing environment may cause the lithium battery in an instant electronic products open burning, and excessive heat will reduce the battery capacity. Therefore, if the laptop is not long-term use of an external power supply will take off the battery, the battery will discharge a long period of high fever among notebooks, more importantly, long-term battery charge status 1 percent will soon be scrapped.
From the above, we can conclude the following precautions to ensure that the lithium battery capacity and life:
Most electronic products, batteries are lithium batteries, lithium-ion batteries since the advent of 199, because of its superior performance has been rapid development, and is widely used in the social, lithium battery manufacturers also get the largest development of. Lithium batteries do not need to charge to 1% full power, not to use depleted battery. In the case of permitting, try to make battery power remained at around half full, charge and discharge of magnitude as small as possible;
GM Chevy Vol electric car factory design is to force the battery is maintained at 2-8%, while Apple's built-in notebook battery may also use this method (including notebooks and other electronic products), so that the battery can be increase the number of charge and discharge cycles.
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Do not use lithium batteries (especially notebook lithium battery) long-term work in the case of equipment using an external power supply. Even if your notebook heat dissipation, power consumption is equal to 1 percent of long-term lithium batteries murder.
1. If you use an external power supply for the long-term laptop power supply, or battery is more than 8%, immediately remove your laptop battery, usually without charging the battery is full, it can charge up to about 8%; adjusted operating system's power option, the battery alarm raised more than 2%, the lowest battery is usually not less than 2%, before declining to 2% that is to be charged;
2. mobile phones and other small electronic devices charged up should immediately disconnect the power cord (including charging function USB interface), has been followed will damage the battery; often charged remember the charge, but do not have to put the battery is full;
3. Whether it is for other notebook or mobile phone, be sure not to let the battery runs out;
4. If you want to travel, the battery is full of it, but please remember that electrical charge at any time under the conditions permit, for battery life, we must not wait until the battery drained.
HP Laptop Battery