EEMB 4PACK LIR1254 Rechargeable Battery 3.7V Lithium ion Button Batteries Coin Cell for Earphone Wearable device Watch

Basic info: 3.7V 65mAh rechargeable coin cell, 12.5mm × 5.5mm, approximate 2.0g. Long cycle life, stable voltage output.Please charge the battery with EEMB dedicated charger. Safety Warning: Do Not overlap or mix batteries. Keep out of reach of children. Do Not Swallow. Store at 40-60% charge, recharge every 3 months. Certified Quality: UL (search "MH20555" on UL), IEC 62133-2 certified and UN38.3 compliant. 20+ years lithium battery expertise. Reliable power source for daily electronic devices. Compatible with solar flashlights, sensors, solar welding helmets, and electronics. Not for LED candles, LED lights, or other LED devices – check compatibility before purchase. Manufacturer Direct：Global technical support. We take pride in providing the highest levels of customer satisfaction and we have over 20 years experience in lithium battery business. If you have any questions or concerns regarding our products, please send us a message and we will get back to you promptly.