China Cylindrical Lithium-ion Battery suppliers INTRODUCTION Product of Sum Cylindrical lithium battery pack design Main types of cylindrical lithium batteries: 14 series：14430、14500、14700 18 series：18500、18350、18650、18700 21 series：21700 26 series：26650 32 series：32650 Applications: Instrumentation, medical/ financial / commercial/ security/ power equipment, robotics, power storage, emergency backup power supply. I/ Products specs Model18650-2S Dimensions18*36*65mm Capacity3000mAh Voltage3.7V Environment of usage-40~80℃ CertificationsCE、ROHS、UL、FCC、KC、IEC62133、CQC、UN38.3、MSDS II/ Production process FAQ 1-Q/What’s the nominal voltage of a polymer lithium battery A/ The nominal voltage of a polymer lithium battery is 3.7 V. 2-Q/What’s the highest charge of a polymer lithium battery A/ The highest voltage of a polymer lithium battery is 4.2 V. 3-Q/ Should a protective plate be added to a lithium-ion battery pack? A/ Yes. To prevent an over discharge of the battery 4-Q/ What is the advantage of the protective plate on the battery A/ To protect the battery through an overcharge and over current process. 5-Q/ Is it possible to have a larger capacity for a battery? A/The capacity and size of the battery is proportional to the size, the larger the size, the larger the capacity.China Cylindrical Lithium-ion Battery suppliers website:http://www.sum-battery.com/industrial-battery/cylindrical-lithium-ion-battery/