The batteries of RV are generally 200ah, 12v, all of which are lithium batteries, and even reach 800Ah in extreme cases. The following is the information about the RV: 1. Power consumption mode in RV: The electric energy on RV is generally divided into 12V DC and 220V AC, of which 12V is stored in the battery of RV, and 220V can only be externally connected or converted by inverter. General RV equipment 1-. 2. Power supply system on the RV: There are only these types of power supply systems on the RV: external commercial power, generators and solar power generation. Advantages of external mains supply: no noise, unlimited basic electricity consumption; Disadvantages: it is not easy to find a place to connect electricity when going out. Advantages of generator: basically, there is no restriction on electricity consumption at any time, as long as there is oil; Disadvantages: loud noise. Advantages of solar power generation: no noise, using the sun to generate electricity; Disadvantages: low power generation efficiency, only enough for lighting or refrigerator.