Battery Charger Brand: Dongguan Dongsong Electronic. Co., Ltd. Model:DK15-xyH-BZ (x and y are variable, please see 'General Product Information and Other Notes' for detailed model description) Technical Specifications:Input: 100-240VAC 50-60Hz or 50/60Hz 0.5A Output: 3.6-34Vdc 0.1-2.5A 15.6W Max. (x = 3-digit number from 036 to 340, representing the output voltage in 0.1V step. For example, “036” means 3.6V DC, “340” means 34.0V DC., y = 3-digit number from 001 to 250, representing the output current in 0.01A step. For example, “001” means 0.01A, “250” means 2.50A.)