1,battery manufacturer 2.3.7V,2400mAh 3.OEM&ODM is avaiable 4,ROHS,UN,UL Specifications of ... Rated Capacity2400mAh (0.2CA Discharge)Rated Voltage3.7VInternal Resistance≤60mΩ (with PTC)Cut-off Discharge Voltage2.75VCharge Upper Limit Voltage4.20 ... )Advantages of recommendations1. each cells with high capacity of the limited size2. with cells to make up a pack ,and between the cells ...