The Telwin Alpline 20 is a robust battery charger designed for both 12V and 24V systems, ideal for automotive and commercial use. With a single-phase mains voltage of 230V and a frequency of 50/60Hz, it delivers a charging power of 300W. This charger provides an effective charging current of 18A for 12V batteries and 12A for 24V batteries, with a rated charge current of 12A and 8A respectively. It is suitable for a wide range of battery capacities, from a minimum of 30Ah to a maximum of 225Ah for 12V batteries and from 20Ah to 180Ah for 24V batteries. The device features two adjustment positions for flexible operation, and its compact design, with dimensions of 22.5x29x20.5 cm and a weight of 6.9 kg, makes it both portable and efficient.