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CMOS Battery RTC Memory BIOS Battery for DELL Latitude E5440 E5450 E6440 E6420 E7440 E7240,Alien-Ware M18x,M18xR2,14 R1,18 R1,13,17 R2,15 R1,15 R2,17 R3,13 R2,15 R3,17 R4|for Inspiron 4050(Black)

4.7 4.7 out of 5 stars 82 ratings
$6.99
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Black
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Purchase options and add-ons

Number of Batteries 1 CR2 batteries required.
Brand LeFix
Battery Cell Composition Lithium Manganese Dioxide
Compatible Phone Models For Certain Laptop Models
Recommended Uses For Product Laptop

About this item

  • Battery Data:3V 250mAh
  • The Core Battery is made by Japanese Battery Giant.High Quality and Reliable.
  • The Battery Connector with Wires:Standard 2Pin and 2 Wire with 1.25 Pitch Connector,Molex MX51021-0200-B
  • The Professional Packaging with Anti-static Bag Ensure the Battery with Long Life Span.
  • Compatible with E5440 E5450 E6440 E6420 E6230 E6520 E7440 E7240 Alien-ware 17R3
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CMOS Battery RTC Memory BIOS Battery for DELL Latitude E5440 E5450 E6440 E6420 E7440 E7240,Alien-Ware M18x,M18xR2,14 R1,18 R1
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Sold by LeFix-Official and ships from Amazon Fulfillment.
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60WH T54FJ Laptop Battery for Latitude E6440 E6430 E6420 E6520 E6530 E6540 E5430 E5520 E5530 E5420 Inspiron 4420 4520 4720 54
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CMOS Battery RTC Memory BIOS Battery for DELL Latitude E5440 E5450 E6440 E6420 E7440 E7240,Alien-Ware M18x,M18xR2,14 R1,18 R1,13,17 R2,15 R1,15 R2,17 R3,13 R2,15 R3,17 R4|for Inspiron 4050(Black)
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Price$6.99$5.69$8.89$5.69$6.79$7.59
Delivery
Get it as soon as Monday, May 13
Get it as soon as Monday, May 13
Get it as soon as Monday, May 13
Get it as soon as Monday, May 13
Get it as soon as Tuesday, May 14
Get it as soon as Monday, May 13
Customer Ratings
4.74.7 out of 5 stars82
4.44.4 out of 5 stars70
4.44.4 out of 5 stars62
4.24.2 out of 5 stars65
4.54.5 out of 5 stars104
4.54.5 out of 5 stars104
Easy to install
4.8
4.3
4.0
3.9
4.6
—
Value for money
4.8
4.6
3.6
4.1
3.6
—
Sold By
LeFix-Official
RT Official
RT Official
RT Official
Shenzhen Weijia Electronics Co., Ltd.
Shenzhen Weijia Electronics Co., Ltd.
capacity
250 milliamp hours
—
—
—
240 milliamp hours
240 milliamp hours
battery quantity
1 cr2, 1 lithium ion
1 cr2032
1 cr2032
1 cr2032
1 cr2032
1 cr2, 1 cr2032
voltage
3 volts
3 volts
3 volts
3 volts
3 volts
—
reusability
Rechargeable
Rechargeable
Rechargeable
Rechargeable
Single Use
Single Use
compatible devices
laptop
Tablet, Scanner
Laptop
Tablet, Laptop, Scanner
Laptop
BM Lenovo ThinkPad Laptop, DELL Laptop, Intel NUC, Sony PS2 and PS3

Product Description

LeFix,the Leading Supplier of CMOS Batteries on Amazon

LeFix CR2032 CMOS Battery

The CMOS,or Real Time Clock(RTC),Battery Powers the BIOS Firmware in Your Laptop

CR2032 Memory battery

How do I know My CMOS Battery Failed?

Here are the CMOS battery failure symptoms:

  • The laptop has difficult booting up
  • There’s a constant beeping noise from the motherboard
  • The date and time have reset
  • Peripherals aren’t responsive or they don’t respond correctly
  • Hardware drivers have disappeared
  • You can’t connect to the internet

When your CMOS battery fails, your BIOS firmware will shut down and revert to its default settings.

We Focus On the Quality and Details When Designing and Manufacturing

Maxell CR2032 dell D620 cmos battery

dell e6520 cmos battery

dell d630 cmos battery

dell e6420 rtc battery

Japanese Coin Cell Battery

The coin cell battery is the key part of whole Real Time Clock(RTC) battery,or memory battery.We use quality Japanese coin cell battery to manufacture LeFix computer CMOS batteries.

Nominal Voltage (V):3

Nominal Capacity (mAh):250

Nominal Discharge Current (mA):0.2

Diameter（mm）:20

Height（mm):3.2

Quality Housing Shell

Durable polycarbonate plastic housing shell and ABS provides the high endurance.

Compact Shrink Tube

The compact heat shrink tube securely wire the metal terminals to ensure the long lifetime of RTC batteries.

Double-Sided Adhesive Sticky Pad

The double-sided adhesive on one side provides the flexibility and convenience when replacing the RTC battery.It's easily to peel off the liner backing paper.

Looking for specific info?

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Feedback

CMOS

CMOS Battery RTC Memory BIOS Battery for DELL Latitude E5440 E5450 E6440 E6420 E7440 E7240,Alien-Ware M18x,M18xR2,14 R1,18 R1,13,17 R2,15 R1,15 R2,17 R3,13 R2,15 R3,17 R4|for Inspiron 4050(Black)

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Customer reviews

4.7 out of 5 stars
4.7 out of 5
82 global ratings

Top reviews from the United States

Adrian
5.0 out of 5 stars Great Replacement
Reviewed in the United States on March 23, 2024
Color: BlackVerified Purchase
Using a dell latitude E6420 laptop, realizing that it wasn't keeping the time, and needed to get new CMOS battery, and this one worked perfectly.
Helpful
 Report
Marbury V. Madison
5.0 out of 5 stars I renewed my laptop!
Reviewed in the United States on November 5, 2023
Color: BlackVerified Purchase
it isn't that hard to pop the back off and swap out this battery. And now my laptop is functioning like new again (for a very small price.)
Helpful
 Report
kelly wyman
5.0 out of 5 stars Did the job
Reviewed in the United States on February 21, 2023
Color: BlackVerified Purchase
Works good in dell laptop
One person found this helpful
Helpful
 Report
Richard Genz
5.0 out of 5 stars Right for Dell e7440
Reviewed in the United States on April 21, 2022
Color: BlackVerified Purchase
Fits Dell Latitude e7440 laptop as promised. Arrived fully charged at 3.2 volts. Made in Japan. Adhesive underneath peel-off sticker. Installs with the two small white plastic "ribs" on battery connector UP.
Helpful
 Report
Andrew O'Connell
5.0 out of 5 stars It works
Reviewed in the United States on August 5, 2022
Color: BlackVerified Purchase
Direct replacement in e7440 dell latitude. It worked
Helpful
 Report
Boss
5.0 out of 5 stars Does it fit.
Reviewed in the United States on October 25, 2022
Color: BlackVerified Purchase
Worked as advertised
Helpful
 Report
Amazon Customer
5.0 out of 5 stars as advertized
Reviewed in the United States on May 31, 2022
Color: BlackVerified Purchase
works perfect
Helpful
 Report
Carl Mosley
5.0 out of 5 stars battery
Reviewed in the United States on November 21, 2020
Color: BlackVerified Purchase
was a quick install and easy to do
Helpful
 Report

Top reviews from other countries

Pauline L
5.0 out of 5 stars Perfect fit
Reviewed in Canada on October 7, 2023
Color: BlackVerified Purchase
Perfect replacement battery for Alienware 17 R2.
Report
Justin Pua
5.0 out of 5 stars It works with he Asus S65c Ultrabook (it used CR2016)
Reviewed in Canada on December 1, 2020
Color: BlackVerified Purchase
Asus S65c used CR2016 (thickness is 1.6 mm) CR2032 thickness is 3.2mm but they have the same voltage and enough space between the motherboard. The problem is the location of the battery. You have to take out so many screws and disconnect 3 (maybe 4) flat cables and including the fan only you will able to access the coin battery. This notebook design is very bad plus the ethernet port broke easily, next time when you buy an Asus or Lenovo notebook beware.
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