CR2012 battery: equivalents & specs
The CR2012 is the thinnest common 20 mm lithium coin cell: 3 volts, 20 mm across and just 1.2 mm thick, holding around 50 mAh. It exists for card-style remotes and ultra-slim devices where even the CR2016's 1.6 mm is too much.
Same battery, other names
Every code below is the exact same cell as CR2012. Any of them will fit and work identically.
Compatible replacements
- CR2016: Slightly thicker 1.6 mm cell in the same diameter; check compartment tolerance before substituting.
Buying and replacement notes
This is a niche size, produced mainly by Panasonic and Sony/Murata, and it is often out of stock at retail. Some devices with springy contacts will accept a CR2016 in its place, but card-type keys and slim enclosures usually will not close over the extra 0.4 mm. Buy from a seller with turnover; thin cells suffer proportionally more from shelf aging.
Commonly used in
Need a replacement?
Shop CR2012 batteries on Amazon →⚠️ Keep away from children. Swallowed button batteries, especially 20 mm lithium coins, cause severe injury within hours. If a child swallows one, call the 24/7 National Battery Ingestion Hotline (US) at 800-498-8666 or poison control at 800-222-1222 immediately. What every parent should know.