Coin, 6.8mm 3 V Lithium Battery Rechargeable (Secondary) 5.5mAh #CommonPartsLibrary #Battery-rechargeable #MS621FE #Lithium

Coin, 23.0mm 3 V Lithium Battery Rechargeable (Secondary) 50mAh #CommonPartsLibrary #battery #VL2330

DS3231 explains that this part is an "Extremely Accurate I²C-Integrated RTC/TCXO/Crystal". This is the finest RTC you can get, great for datalogging and clocks, or anything where you need to really know the time.

Coin, 12.5mm Lithium Manganese Dioxide 3 V Battery Non-Rechargeable (Primary)

Coin, 4.8mm 3 V Lithium Battery Rechargeable (Secondary) 1mAh #commonpartslibrary #battery

A generic surface mount coin cell battery holder or retainer with a pad on the PCB for the negative terminal. Supports battery diameters of 10mm, 12mm, 16mm, 20mm, 23mm, and 24.5mm. Supports CR1025, CR1216, CR1220, CR1225, CR1616, CR1620, CR1632, CR2016, CR2020, CR2025, CR2032, CR2320, CR2325, CR2330, CR2412, and CR2430 series batteries. #generics #commonPartsLibrary

A generic surface mount coin cell battery retainer with a pad on the PCB for the negative terminal. Supports battery diameters of 10mm, 12mm, 16mm, 20mm, 23mm, and 24.5mm. Supports CR1025, CR1216, CR1220, CR1225, CR1616, CR1620, CR1632, CR2016, CR2020, CR2025, CR2032, CR2320, CR2325, CR2330, CR2412, and CR2430 series batteries. #generics #commonPartsLibrary

Battery Retainer Coin, 20.0mm 1 Cell SMD (SMT) Tab #BR2032 #CR2032 #DL2032 #ECR2032 #LIR2032

Battery Retainer Coin, 20.0mm 1 Cell SMD (SMT) Tab #BR2032 #CR2032 #DL2032 #ECR2032 #LIR2032