Electric bicycle, comprising: - an electric drive , - at least one first battery , - an electrical connection arrangement between the electric drive and the first battery , having a modular plug connection arrangement , wherein the modular plug connection arrangement has at least the following components: • a base plug connected to a first line , and • a first module plug having a plug and a socket , configured so as to receive a plug of a second module plug , • wherein a second line for connection to the first battery is provided on the first module plug , and • wherein a first plug connection is established between the first module plug and the base plug , and - a second battery and the second module plug , which is electrically connected to the second battery , wherein a second plug connection is established between the second module plug and the first module plug , wherein - the electrical connection arrangement has at least one electrical resistor component , wherein the electrical resistor component is arranged in the module plug , and - the electric bicycle comprises a control unit that is configured so as to record signals from the electrical resistor component and to execute a charging strategy for charging the battery or a discharging strategy for discharging the battery based on the signals from the electrical resistor component , wherein the control unit is configured so as to determine a number of batteries and/or a type of batteries based on signals from the electrical resistor . - an electric drive , - at least one first battery , - an electrical connection arrangement between the electric drive and the first battery , having a modular plug connection arrangement , wherein the modular plug connection arrangement has at least the following components: • a base plug connected to a first line , and • a first module plug having a plug and a socket , configured so as to receive a plug of a second module plug , • wherein a second line for connection to the first battery is provided on the first module plug , and • wherein a first plug connection is established between the first module plug and the base plug , and • a base plug connected to a first line , and • a first module plug having a plug and a socket , configured so as to receive a plug of a second module plug , • wherein a second line for connection to the first battery is provided on the first module plug , and • wherein a first plug connection is established between the first module plug and the base plug , and - a second battery and the second module plug , which is electrically connected to the second battery , wherein a second plug connection is established between the second module plug and the first module plug , wherein - the electrical connection arrangement has at least one electrical resistor component , wherein the electrical resistor component is arranged in the module plug , and - the electric bicycle comprises a control unit that is configured so as to record signals from the electrical resistor component and to execute a charging strategy for charging the battery or a discharging strategy for discharging the battery based on the signals from the electrical resistor component , wherein the control unit is configured so as to determine a number of batteries and/or a type of batteries based on signals from the electrical resistor . <EOS>