6-Cell 4400mAh Dell Inspiron 640M battery replacement

Dell Li-ion 11.10V 4400mAh

6-Cell Dell Inspiron 640M battery replacement for Inspiron 640M inspiron 640m . With a capacity of up to 4400mAh, the Inspiron 640M battery lets you work seamlessly when you are on the move for business trips or vacations. Select suitable Brand new Inspiron 640M battery here, saving your money and time.

Brand new, 1 Year warranty !
Dell inspiron 640M battery

9-Cell 6600mAh Dell inspiron 640M battery replacement

Dell Li-ion 11.10V 6600mAh

Tech Specs : Li-ion, 6600mAh, 11.10V. 500-600 recharge Cycles
Product Type : Brand new, Replacement Battery , 100% compatible with the OEM inspiron 640M battery.
This inspiron 640M battery has been tested and validated on Dell systems to ensure it will work with your notebook.
The battery also work with the follwing model: inspiron 630M battery, xps m140 battery.
The Dell inspiron 640M laptop battery features: long battery life and maximum power, quick-charging.!
Order Dell inspiron 640M battery now: Full One year waranty and Dell battery support.
Warraty : We guarantee that Our inspiron 640M battery are make up of new Sanyo cells.

Y9943 Y9947 Y9948 C9553 C9554 CC154 CC156 FC141 TC023 DC224 312-0373

Follow the notice below, Better using your Dell inspiron 640M battery

Exercise Your Battery - Do not leave your inspiron 640M battery 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 Dell inspiron 640M batteries - If your inspiron 640M battery's 76% even less in work , you must fully charge, fully discharge, and then fully recharge the laptop battery pack.
Battery Storage - Store your inspiron 640M laptop battery in a clean, dry, cool place away from heat and metal objects. The dell latpop 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
Do not short-circuit. A short-circuit may cause severe damage to the xps m140 battery.
Consider removing the inspiron 640M battery from a laptop when running on fixed power.
Avoid propping your laptop on a pillow, blanket, or other soft surface that can heat up. Your inspiron 640M battery is a lot less efficient when not within its standard operating temperature range.
More battery maintain infomation in laptop battery blog