High quality DELL R640C Batteries for DELL LATITUDE E4200 wholesale or retail in thelaptopbattery.co.uk, R640C laptop battery is guaranteed to meet or exceed DELL original specifications, buy R640C batteries get 30% off.
R640C Y085C W343C X595C
R841C Y084C W341C U444C
R839C Y082C W346C F586J
R331H
1.Carefulness read narrate book of battery,use commendatory battery.
2.New laptop battery pack must be fully charged before use.
3.New DELL R640C battery needs to be fully charged and discharged (cycled) a few times before it can condition to full capacity.
4.Rechargeable batteries undergo self-discharging when left unused. Always store a R640C battery pack in a fully charged stage for storage.
5.Fully drain and fully recharge your battery pack every few month.
6.Li-ion and NiMH battery can not interchangeable.
7.Turn down the LCD brightness of your portable device.
8.Use built-in power management on your portable device.
9.Turn off LCD or other unnecessary accessories when not in use.
10.Set screen saver blank to 1 to 2 minutes of your DELL R640C notebook.
11.It is normal to get warm when charging or normal use. If it is getting too hot, there may be a problem with the device and qualified personnel should check it.
12.Research the electric appliance and the DELL R640C Batteries contact elements is whether clean, when necessity is clean with the wet cloth mop, after dry loads according to the correct polar direction.
13.R640C laptop battery of DELL should stock in cool place, and dry.