Bi-directional Motor Generator DC 48V + Scotty AI V3 at 12V or 24V Inverter 3000VA 48V 8,000W Capable but Matching Charge 1400W 3000VA Inverter
Alternator + Rectifier + Example100A DC-DC at 12V Inverter 3000VA 12V
Efficiency Comparison
1,400W Charging 3000VA Inverter
Power Level
Alternator Efficiency (when hot) Bidirectional Motor Generator Efficiency
60%
90%
Rectifier Efficiency Inverter Efficiency
92%
94%
DC DC Charger Efficiency 12V Cable Losses at 100A 5m run 48V Cable Losses at 3000W 5m run Battery Efficiency at selected Voltage 12V Cable Losses to Inverter 280A 48V Cable Losses to Inverter 70A Inverter Efficiency at Either Voltage 48-12V losses at only 50A 12V DC 1m
90% 91% 95% 74%
99% 97% 99% 96% 98%
93%
Total Round Trip Efficiency From Engine to 240V AC
32.8%
75.6%
!
Bi-directional Motor Generator DC 48V +
Alternator + Rectifier + 100A DC DC- at 12V
Charging Time
Scotty AI V3 at 12V or 24V
Power Level Batteries all quoted at 12V Equivalent same size
1,400W Charging
8,000W Charging
Typical 400Ah in Boat Typical 800Ah in Boat 1.200Ah in Boat Empty after air con- all night
4 hours 8 hours
42 minutes
1 hour 24 minutes 2 hours 6 minutes
12 Hours
!
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