USB Lithium Ion coin cell battery charger LIR2032 from Bobricius on Tindie
RS PRO LIR2032 Button Battery, 3.6V, 20mm Diameter | RS
Amazon.com: CT-ENERGY LIR2032 Rechargeable Batteries 3.7V with High Capacity 70mA Can Be Replacement of Rechargeable Coin Cell Lithium Batteries ML2032 : Health & Household