I re-read my post #17 and had to make a typo correction, but also realized that adding a second or even third battery would be an interesting idea if the main (first) battery always got charged and stayed charged for extended periods of time. The solar panel and/or turbine would be just sitting there doing nothing all that time. With a second battery, the charging could be diverted to that battery which would make use of the power source again. If that one does the same thing, a third battery would take over.
When it came time to use the power, the second (or third) battery would be able to supply more energy than just a single battery if needed.

Thanks in regards to your post 17. At the moment only 1 battery will be installed, there could be a larger battery installed such a bike or car battery if needed.

The charger IC I am using will automatically stops the charge once battery reaches the limits, so I don't think I would need to do anything manually. There could be a possibility once charger might think battery is full charged if the other charge is outputting 14V.

 

Thanks in regards to your post 17. At the moment only 1 battery will be installed, there could be a larger battery installed such a bike or car battery if needed.

The charger IC I am using will automatically stops the charge once battery reaches the limits, so I don't think I would need to do anything manually. There could be a possibility once charger might think battery is full charged if the other charge is outputting 14V.

Hi,

Just to note, I did not mean you would have to do anything physically, but that the circuit would do it. Unfortunately the pronoun 'you' sometimes refers to the circuit you would use, not necessarily some physical action you would perform each time. Kind of funny when you think about it.

My previous point was that if one charger is putting out the full 14 volts, then the battery really is fully charged, so 'you' do not want any charger to keep charging the battery, which means if the other charger turns off I would think that would be ok, as long as it could turn back on automatically when needed again. This assumes that the 14 volts is really the absolute maximum voltage the battery should ever see when charging.

 

Thanks

I think this device could work for me:

https://www.analog.com/en/products/ltc4370.html

 

Yes, I aim to use an MPPT charger, but here is what I am trying to accomplish:

For example, suppose a solar panel is producing 10W and a wind turbine is producing 15W. By using a diode or some form of switching, the charge from the turbine would be utilized, so my charge current is 15W. However, I would like to see if there is a way to combine both power sources to achieve a 25W charge current.

Is this possible?

Hi, Good day Engr. Do you have any Updates in your project?

 

Most AC appliances, and there are a large variety, are designed to run from an AC outlet.
A washing machines or refrigerator that is designed for off grid might run off 48V or 24Vdc.
A DC-DC converter, I like to think about it as a conversion from one DC voltage to another.
Two DC sources having the same voltage can be connected in parallel to increase the current.

AC is useful in reducing current loss over a distance. (from the windmill to the house)
Storage batteries are useful when power is not continuous.