The chargers are suitable for all types of batteries including deep cycle or starter wet batteries, absorbed glass mat (AGM), gel, spiral and Li-Ion. What’s more, they are compatible with 120V or 230V AC supplies so can work anywhere in the World! Simply plug in and charge. Each Series 1 model has three full outputs for simultaneous charging of up to three separate batteries. Total output varies, depending on the model, from 20 Amps to 50 Amps. All four have clear, easy to understand displays showing battery content – switchable between batteries - and charging phase – bulk, absorption or float. Mastervolt’s 3-step+ charging characteristic allows the battery to be charged safely and quickly in three phases. A temperature sensor allows fast and safe charging in any environment. The memory function avoids overcharging, should the charger be frequently switched on and off. Three-phase charging ensures the battery is fully charged and increases the battery life.