There are two ways to change 12V into 24V: directly configure a 12V battery, and connect the two batteries in series to get 24V voltage. Go ahead and buy a DC-DC converter to increase 12V voltage to 24V voltage. The working principle of the DC-DC converter is to put 12V voltage through the switching circuit, push the switching transformer, and output 24V voltage. Choose either way, you need to consider how much it needs to output current after the voltage rises to 24V, and then choose the appropriate battery or DC-DC converter according to the output power.
Super simple, you use the boost integrated circuit MC34063 connected to the booster can be 12v to 24v DC. 34063 is now commonly used boost IC, very good to buy, the price is about 2 yuan \/.