Charging 48v bank with 12v panels + inverter

[GeorgeF]

Charging 48v bank with 12v panels and dummy battery + dc-ac inverter + ac charger during peak hours:

There is a guy who claims that this is effective:

Quote:
This research aims to design a battery charging system using an inverter as a provider of electrical energy in the Electric Bicycle, find out the performance and effectiveness of charging the battery using an inverter compared with the system that has been installed.

The method used in this research is Research and Development by developing battery charging system using inverter on commercial electric bike (SLN) that hasbeen made. The results showed that charging the commercial Electric Bicycle has a more effective value and faster battery charging process using an inverter in a 300wp solar panel that is used as its main energy supply.

The battery charging system using an inverter as a provider of electrical energy in the SLN takes 10,182 hours to charge 48 volts to full. So the process of charging the battery using an inverter is more effective than the system that has been previously installed with a ratio of charging the battery of 1: 2.94 or three times more effective than the previous system.

-endquote-

Am I missing something...??

[Mike90250]

Far too many energy loosing conversion steps, when you consider a MPPT controller is in the 98% efficient ballpark,
Adding motor, bicycle bearings, inverter and more junk will only make it worse