This is how I use an MPPT Solar Charger to convert an arbitrary power source to a CC/CV controlled charge profile.
- Charge a 12 volt battery from a 24 volt battery
- Charge a 12-V battery from a 36 volt or 48 volt battery
- charge a 12 volt battery from a 48 volt power supply
- charge a 12 volt battery from a 48 volt golf cart charger
- Charge a 24 volt battery from a 48V battery
- Control the maximum charge current
- Control the maximum charge voltage
- calculate the watt hours delivered
- …..
- Boost a 5A charger to 15A (shown)
- Has battery over-temp cut out
- works with any DC power source that is within the states limits (like 18V to 60V)
The proof is in the video. I show that we can charge a 12 volt battery at about 60 W with an 18 volt source. I then crank the source up to 60 volts and show that we can charge the same battery at over 200 watts.
In this case the MPPT is doing current multiplying for us, as well as some safety features.
Totally Legit