Low electricity? Never heard that one. 1. You need to measure the battery voltage at the battery with a volt meter. If you don't know how, get a friend or fellow camper to assist. If it is below 12 volts it has probably been there for some time and has likely caused some damage to the battery. 2. look for a battery disconnect switch. Is it on or off? If off, turn it on and again check the battery voltage. It should be higher than before and increasing. If on or nonexistent start checking battery connections and ground connections. Report your findings back.