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Laptop Battery for Dell INSPIRON 17R 5721, 4400mAh
( Hi-Quality Replacement Battery for Dell INSPIRON 17R 5721 )
- Battery Capacity: 4400mAh
- Battery Cell: 6-Cell
- Battery Voltage: 11.1V
- Battery Type: Li-ion
- Battery Color: black
- Battery Weight: 384g
- Product Code: DL15r
- 1 Year Warranty+30 Days Money Back Guarantee+Free Shipping to The Whole World!

Dell INSPIRON 17R 5721 Laptop AC Adapter
( Hi-Quality Dell INSPIRON 17R 5721 Charger )
- Adapter: for Dell
- Included: Power Cord
- Color: Black
- New: 100%
- Warranty: 1 Year
- Product Code: DLAC
- 1 Year Warranty+30 Days Money Back Guarantee+Free Shipping to The Whole World!
General Computer Tips : How to Change a Laptop Battery
Dell INSPIRON 17R 5721 Battery Description:
Replacement Dell INSPIRON 17R 5721 laptop batteries are made with high quality parts and are guaranteed to meet or exceed the original equipment manufacturers specifications at a reduced price. This Li-ion Dell INSPIRON 17R 5721 battery on sales will be perfect replacement for your original Dell INSPIRON 17R 5721 Laptops.
Saving your money and time to select suitable brand new Dell INSPIRON 17R 5721 battery here,quality of this battery is certified as well by TUV,RoHS and the CE to name a few. We guarantee the battery for Dell INSPIRON 17R 5721 with a full one-year warranty from the date of purchase,30-days money back,fast shopping!
Any question or suggestion about this Dell INSPIRON 17R 5721 battery? please Contact Us so we can offer you the most convenient service.
NOTE: If you couldn't find your laptop model NO. or battery part NO. in below compatible list, this battery may still be compatible with
your laptop. Please contact us to check.
Dell INSPIRON 17R 5721 Battery Fits Laptop Batteries Models: ( Press " Ctrl+F " to Find )
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DELL
INSPIRON 14 3421 INSPIRON 14R 5421 INSPIRON 15 3521
INSPIRON 17 3721 INSPIRON 17R 5721 INSPIRON 15R 5521
Latitude 3440 2421 2521 5437 5537 3721 3737 5737 3540
Dell INSPIRON 17R 5721 Battery Replacement Battery Code: ( Press " Ctrl+F " to Find )
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0MF69 24DRM 312-1387
312-1392 312-1433 49VTP
4WY7C 68DTP 6HY59
6KP1N 6XH00 8RT13
9K1VP DJ9W6 FW1MN
G35K4 MK1R0 MR90Y
PVJ7J T1G4M V1YJ7
VR7HM W6XNM X29KD
XRDW2 YGMTN V8VNT
312-1390 8TT5W XCMRD
4DMNG G019Y
6K73M N121Y
How to Extend Dell INSPIRON 17R 5721 Laptop Battery Life?
Laptop computer batteries often run out of power sooner than would be desired. Here are some tips for making them last longer between charges...
Screensaver: Change your laptop's screensaver to a blank (Black) screen,and set it to turn on within a few minutes of inactivity. Screensavers with graphics and sound effects will drain the power more quickly,whereas a blank screen will conserve power.
Hard Drive & Disk Drive: Avoid using the hard drive and disk drive excessively. Because these are mechanical mechanisms,they consume more power. In some cases,upgrading the amount of memory will reduce hard drive usage. If your Dell INSPIRON 17R 5721 laptop is set to run anti-virus scans periodically,only allow this to happen when you have it connected to AC power,because this substantially increases hard drive usage while it is running. If you are using an older laptop with no hard drive,consider using a VDISK or RAMDISK to reduce disk drive usage.
Sound/Music: If you want to listen to music while operating the computer,consider using a separate radio,cassette recorder,or CD player. If the CD player's batteries run out,you will be able to keep using the computer,which is probably your higher priority.
USB Devices: If your Dell INSPIRON 17R 5721 laptop computer has a USB port,keep in mind that some USB devices draw power from the computer's battery while they are plugged in to it. Avoid leaving such devices plugged in longer than they need to be.
Software: Different software which accomplishes the same functions may cause your Dell INSPIRON 17R 5721 battery computer to use different amounts of power. If the software utilizes memory more effectively (rather than reading/writing to the disk or hard drive frequently),it may use less power. Software which places less demand on the processor can also reduce power consumption in some cases,along with programs which use a dark-colored background. Avoid running software directly from a 3.5" disk or CD-ROM,because it will cause these mechanisms to run frequently and drain the power more quickly.
Laptop battery tips:
1.Carefulness read narrate book of battery,use commendatory battery.
2.New notebook battery pack must be fully charged before use.
3.New laptop 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 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 laptop.
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 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.Notebook battery should stock in cool place, and dry.