BASIC INFOVoltage: 3.7V; Capacity: 45mAh; Weight: approximate 2.6g; Diameter: 20mm, Height: 3.2mm. Please charge the battery with EEMB dedicated charger. Packing included: LIR2032 Battery X 4, Charger x 1. Note: The product packaging may be different in each batch. CERTIFICATIONSSafety test by UL: IEC 62133. More than 400 EEMB batteries are UL certified. Search "MH20555" on UL for all EEMB UL certification information. WARNINGDo not overlap or mix batteries in a disorderly way. If the positive and the negative terminals touch each other, it will cause SHORT CIRCUIT or EXPLOSIONS! Please keep out of reach of children. Do NOT SWALLOW. STORAGEKeep the cells in a 40%-60% charged state during a long period of unused period. We recommend charging the battery every three months upon receipt to maintain the voltage. Store the battery in a cool and dry place.!!! SPECIAL NOTICEThe battery may not be suitable for some LED candles. APPLICATIONMay be suitable for solar flashli