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Amazon.com: LeFix CMOS RTC BIOS Battery Compatible with Lenovo Thinkpad T60 T60P T61 T61P R50 R51 R52 R53 R60 R60e R61 R61i T400 T500 R400 R500 T410 T410i T410s T420 T420i T420s
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Amazon.com: Synergy Digital CMOS/BIOS Battery, Compatible with Lenovo ThinkPad T430u CMOS/BIOS, (Lithium, 3V, 150mAh) Ultra High Capacity, Replacement for Lenovo 04W0331 Battery : Health & Household
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Amazon.com: LeFix Replacement for CMOS RTC BIOS Battery Thinkpad E445 E545 E440 E540 E450 E455 E550 E555 E550c E450c E460 E560 E465 E565 E470 E475 E570 E575 E480 E485 E430 E435 E530
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Amazon.com: LeFix CMOS RTC BIOS Battery CR1632 Compatible with Lenovo Thinkpad X230s,X240s,X240,Yoga Laptop,X250, Yoga 12, X260, X270,X1 Carbon 1st Gen(Type 34xx)| A275, A475|T480,A485 : Electronics
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