I have a centuar 12 VDC / 40A charger with a house battery bank of 300 Ah. When I start my generator the charger goes to approximately 50A and will continue to charge for approximately 30 - 60 minutes. The current at that time is approximately 35 A and than the charger switches to float prematurely in my mind. Batteries are not fully charged. I have checked and the charger did not seem too hot and the fans were still running. Is this the expected behavior? Thanks Rob.