Get 230 volt and DC energy in your van, lorry, cottage or yacht with a lithium battery based 'generator'. The 230V Lithium Power Supply (LPS) works as a green generator without any use of fossil fuel, is silent and has zero exhaust. The Lithium Power Supply can be charged from the alternator in van or yacht but also by mains grid. The green 'generator' has a built-in inverter for 230V/50Hz pure sine wave output and can supply with up to 2500W. A green 'generator' based on lithium ion batteries has a long lifetime time compared to lead acid batteries, up to 3000 cycles and can operate and be charged in small steps without any loss.