DELL 312-7209 Laptop Batteries

Iamge	Type	Voltage	Capacity	Color	Price
	Li-ion	11.1V	3600mAh	Dark grey
	Li-ion	14.8V	1800mAh	Dark grey

DELL 312-7209 Laptop Batteries (Li-ion,11.1V, 3600mAh)

Click to enlarge images

DELL 312-7209 Batteries

DELL 312-7209 Laptop Batteries (Li-ion,14.8V, 1800mAh)

Click to enlarge images

DELL 312-7209 Batteries

DELL 312-7209 Laptop Battery Maintenance

• 1) Remove unused PCMCIA Cards from your notebook to extend DELL 312-7209 battery run-time when no external power source is connected.
• 2) Battery works the best in a condition of 20-30 temperature. It may shorten DELL 312-7209 batteries run time if heightening or lowering the temperature.
• 3) It is a wrong concept that taking out the battery from laptop when it has stable power supply in order to prolong the DELL 312-7209 battery life. Because when battery is fully charged, its charging circuit will close automatically. Overcharge usually will not happen.
• 4) It is recommended to conduct a complete charge and discarge cycle for the DELL 312-7209 battery every three months on average.
• 5) Dont use battery if it is not necessary because every charge/discharge time may shorten Dell batterys life.
• 6) Try not to charge battery before power is used up and not to charge the DELL 312-7209 battery too long. This is the best way to avoid memory effect for both Lithuim and Ni-MH batteries. Lithium-ion battery has memory effect too though it is not as obvious as Ni-MH battery.