Employing perfect-layer™ coil winding technology, Battery Charging Transformer Series step down AC input voltage to required level of battery charger (essentially DC power source) and produce current output matched to voltage lead-acid battery under charge. Models are available with standard 120/240 input voltages (60 or 50 Hz) to support 12/24/36/48 V lead acid batteries, and custom voltages are available from 10–5,000 VA. Modular design operates in rugged industrial plant environments.