Replacement HF250 15.2V 68Wh Battery for Dell Alienware 17 R4 ALW17C-D1748 ALW17C-D1758

Product Feature:

Professional manufacturer,one year warranty,CE ROHS MSDS Certificates, 100% brand new Dell HF250 battery but low price,genuine grade A cell ensure the high quality and stable performance of our Laptop Battery.

Grade A cells Li-ion battery for Dell HF250.

Provides excellent discharge characteristics. Over 500-800 times of charge and discharge.

100% Compatible with original manufacturer equipments, guaranteed.

Includes inbuilt over-charge, over-current, over-voltage and short-circuit protection.

Utilizes state of the art printed circuit board (PCB) design to provide stable and safe performance.

Brand New, 30 Days Money Back, 1 Year Warranty, 100% Secure Shopping Guarantee!

Follow the notice below, Better using your Dell HF250 Laptop Battery

• Storage - Store your Dell HF250 Laptop Battery in a clean, dry, cool place away from heat and metal objects. The Dell HF250 batteries will self-discharge during storage; remember stored at about 40% state-of-charge.
• Charge and discharge - For lithium ion batteries, you do not need to discharge them fully and recharge constantly. You need to do a full discharge only about every 30 charges. Do not charged to higher voltages than its threshold voltage.
• Exercise Your HF250 Battery - Do not leave your batteries dormant for long periods of time. We recommend using the battery at least once every two to three weeks. If a battery has not been used for a long period of time, perform the new battery break in procedure described above.
• Calibrate Your batteries - If your Battery's 76% even less in work , you must fully charge, fully discharge, and then fully recharge the Laptop Battery pack.
• Consider removing the HF250 battery from a laptop when running on fixed power.
• Do not short-circuit. A short-circuit may cause severe damage to the battery.
• Avoid propping your laptop on a pillow, blanket, or other soft surface that can heat up. Your Dell HF250 battery is a lot less efficient when not within its standard operating temperature range.
• Attention:
• the capacity is low in current,CPU will be in electricity-saving model and battery can not be charged.In this case,take off the battery and fit on to rouse the CPU. The Dell HF250 battery can be charged then.
• Remove the battery when don't use if for long time,or the currency will be lost and the cell will be damaged.
• Recharge the battery as the circle more than once per month to make the management of capacity reach its best status, and prolong HF250 Laptop Battery useful life.