CR2477N Lithium coin batteries are commonly used in car keys, glucometers, cameras, electric thermometers, calculators, toys, electronic watches/clocks, etc. Also known as: DL2477N, CR2477N, ECR2477N, BR2477N, BR2477N-1W, KCR2477N, LM2477N. Dimensions: H - 7.7mm x D - 24mm.