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Cmos Battery Replacement Comparison - April 2026
| 1 Best Choice  9.9Exceptional |
| View DealOn Amazon |
ModelEEMB 10-Pack CMOS Battery CR2032 3V Lithium Battery with 2 Pin 2 Wire Cable and MOLEX Connector CMOS Replacement for Alienware M11 Dell E6520 Thinkpad T40 Motherboards |
BrandEEMB |
Reviews |
Available On   |
Our Top 1 Picks
Here are the top 1 recommended products with more information to help you find the right product for you
9.9
1EEMBEEMB 10-Pack CMOS Battery CR2032 3V Lithium Battery with 2 Pin 2 Wire Cable and MOLEX Connector CMOS Replacement for Alienware M11 Dell E6520 Thinkpad T40 Motherboards
Why we love it
Long-lasting and energy-efficient performance.
Safe and certified for reliability.
Easy installation and universal compatibility.
Main highlights- STORAGE—No leak, excellent cost performance and long cycle life. we highly recommend customers use the battery within approximately 2-3 months, depending on the storage condition to receive optimal performance. Please keep out of reach of children. Do NOT SWALLOW.
- POWER LONGEVITY & ENERGY-SAVING—EEMB coin batteries are safe, free of mercury, high pressure and high energy density. Operating temperature range: -20℃ to + 60℃. Durable for long lasting performance. Less than 3% per year at room temperature. Long effective period. Superior high-speed pulse discharge characteristics. Continuous discharge stability. Will not leak in equipment during use and for two years after placed in equipment.
- CERTIFICATIONS—Safety test by TUV: IEC 62133. More than 400 EEMB battery models are UL certified. Search "MH20555" on UL for all EEMB UL certification information.
- BASIC INFO—Voltage: 3V; Capacity: 240mAh; Diameter: 20.5mm, Height: 6.5mm. Connector: CR2032-MX51021. Attention: Do not charge! Make Sure Device Polarity Matches with Battery Pack Connector Before Purchase!!!-1.Battery Size; 2.Connector Model; 3.Connector Size; 4.Connector Polarity - THIS IS NOT UNIVERSAL!!! (It will cause a shortage if the polarity of the battery connector does not match your device.)
- APPLICATION—Suitable for Alienware M11x R1 R2 Area-51 13 15 17 18 R2 R3 R4 M14x R1 R2 M17x M18x R2 Area-51 M9700 M9750Dell Latitude E6520, E6420, E6320, XFR E6420, ATG E6420, E5530, E6230, E5430, E6530, E6430;IBM Lenovo Thinkpad T40 T400 T41 T410 T410I T42 T420 T420I T420S.
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