Version anglais M1 2^e session semestres 7 et 8 – Daniel Gile

Contrôle pour étudiants RS + RN. Traduction avec CRIPD selon les mêmes modalités que lors des TD et des contrôles précédents.

La traduction est faite pour diffusion en français sur le web pour des internautes français qui consultent le site de BatteryUniversity.

Remettre le dossier au secrétariat au plus tard le lundi 25 juin 2007 à 14h30. Attention – respecter impérativement l’ensemble des règles de présentation qui figurent ici, et notamment un CRIPD sérieux.

Bonne chance, 

Daniel Gile

Section E

Removing the battery from the laptop when running on fixed power protects the battery from heat. With the concern of the battery overheating and causing fire, a spokesperson for the U.S. Consumer Product Safety Commission advises to eject the battery of affected laptops and to run the machines on a power cord. It should be noted that on a power outage, unsaved works will be lost.
The question is often asked, should the laptop be disconnected from the main when not in use? Under normal circumstances, it should not matter with lithium-ion. Once the battery is fully charged, no further charge is applied. However, there is always the concern is malfunction of the AC adapter, the laptop or the battery.

A large number of lithium-ion batteries for cell phones are being discarded under the warranty return policy. Some failed batteries are sent to service centers or the manufacturer, where they are refurbished. Studies show that 80%-90% of the returned batteries can be repaired and returned to service.