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Many people want to assemble a battery to power an electrical system such as an electric bicycle, an electric skateboard, a speaker, a screwdriver, or any other equipment, but they get confused when it comes to sizing. In this video I explain the main information you need to know to make your battery. In this video I talk about batteries. Capacity (Ah) Maximum current (A) Voltage (V) Power (W) Total power (Wh) Series and parallel connections? Why do they die? All my videos on the subject: Playlist with all my videos on this subject: • RB: Batteries Video by Professor Jeff Dahn (Dalhousie University): • Why do Li-ion Batteries die ? and how...