Do any of the big name mppt controllers buck or boost low voltage to a higher battery voltage to charge? IE; midnight classic, morning star, outback, etc etc...
Thanks
gww
I think that if you look hard enough, you may find a "boost" style of charge controller.
One reason you don't find these types normally used is because if the PV input voltage is lower than the battery voltage,
the PV wire must be larger than it is when the input voltage is higher than battery voltage. This is one of the big benefits
of the latest MPPT charge controllers since PV arrays are a lot of times far away from the batteries and charge controller
and it pays to be able to reduce the wire (copper) size from PV to the batteries, both because of the price of copper
and because of efficiency of lower losses in the PV wiring.
boB