... 40amp Build-in MPPT tracker Easy installation and parallele Parallel Solar charge controller 40Amp, MPPT solar charge regulator, both off grid& grid ... connected.Intelligent MPPT solar charger controller, with BTS(battery temperature sensor), 12v/24vdc 40A, can be parallel, in stock.MPPT solar charge ... size #8 AWG Mppt Solar Charge Regulator 12v/24v 40amp, Parallel Capability