![Blank old rusted aged CMOS battery on the motherboard macro, closeup, simple top view, from above. Replacing bios battery on the mainboard, pc service concept, detail studio shot Stock-foto | Adobe Stock Blank old rusted aged CMOS battery on the motherboard macro, closeup, simple top view, from above. Replacing bios battery on the mainboard, pc service concept, detail studio shot Stock-foto | Adobe Stock](https://as1.ftcdn.net/v2/jpg/03/44/21/34/1000_F_344213420_16TDSaHkXOyOfsO6Dp3ySxrC8vlkk9fc.jpg)
Blank old rusted aged CMOS battery on the motherboard macro, closeup, simple top view, from above. Replacing bios battery on the mainboard, pc service concept, detail studio shot Stock-foto | Adobe Stock
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Amazon.com: 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) : Electronics
Why do some motherboards don't have a battery for BIOS memory? How is the BIOS kept in this case? - Quora
![How to store unused laptop battery for a long period of time and maximize the battery life - ThinkPad - Lenovo Support FI How to store unused laptop battery for a long period of time and maximize the battery life - ThinkPad - Lenovo Support FI](https://download.lenovo.com/km/media/images/HT105337/BIOSt480sbattery_202302151831483.png)
How to store unused laptop battery for a long period of time and maximize the battery life - ThinkPad - Lenovo Support FI
Are CMOS batteries made specifically for PC's? Could I use another watch battery assuming it fit the slot and was rated for 3V? - Quora
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