[EBL 18J Battery - 3.7V lithium batteries(SIZE: 18.5MM x 70MM battery type: button top) STATEMENT: This product is NOT sold with restricted lithium-ion standalone batteries. This product does NOT include lithium-ion battery types: 14500 16340 18650 20700 21700 and 26650. Built-in micro USB port - easy to charge with the included 2 in 1 USB cable no additional battery charger required just plug into any USB port at anytime and anywhere. Rechargeable Batteries -1200 Tech ProCyco (Professional recycle) helps maximize its best power performance while charging. Safety Assurance - built-in integrated safety circuit protects battery from over-charge over-discharge short-circuit and over-heat ensures complete safety for the battery charging.Note: The smart chip protection makes our batteries are little longer than other flat top batteries. High performance - EBL 3.7V Li-ion batteries with 3000mAh capacity support stable 3.7volt output voltage makes the devices work more stable and lasting longer great replacement batteries for high frequently used devices.]