Purchase Elements Of Different Sizes, Namely: 1 Element Aaa Size Technology: Alkaline; Size: Aaa; Working Temperature: -18 To +55 Degrees; Element Capacity: Not Less Than 1150 Miles Of Amp. Type: Alkalain +; Voltage: Not Less Than 1.5 Volts. 2 Items Aa Size Technology: Alkaline; Size: Aa; Working Temperature: -18 To +55 Degrees; Element Capacity: Not Less Than 2700 Miles Of Amp. Type: Alkalain +; Voltage: Not Less Than 1.5 Volts. 3 Items C Size Size: C; Working Temperature: -18 To +55 Degrees; Element Type: Carbon Zinc; Voltage: Not Less Than 1.5 Volts.