Magnetic resonance pulses were first employed during World War 2 in German submersible U-boats; enabling electric battery powered motors to run quietly over longer periods of time to deadly effect. It has since been applied in avionics and now industrial batteries. It does not replace maintenance but should be considered a standard part of maintenance. I see gains in efficiency with this tech every day. The pulse is installed on the batteries, optimizing their ability to take and keep a charge. The evidence is palpable.