They convert a higher voltage dc output from solar panels and a few wind generators down to the lower voltage needed to charge batteries.
Cn3722 solar panel mppt full sun.
In previous videos i ve been able to recommend so.
A mppt or maximum power point tracker is an electronic dc to dc converter that optimizes the match between the solar array pv panels and the battery bank or utility grid.
I ve been trying to find the cheapest solar charge controllers the internet can provide for a little while.
The cn3722 note 1 is a pwm switch mode battery charger controller that can be powered by photovoltaic cell with.
The cn3722 is specially designed for charging 1 or multi cell lithium ion.
By connecting a solar pannel and measureing the input voltage to the desired level usually 18v ish but depends on the solar pannel better to do this in full sun when the open circuit voltage is at its highest then.
Fidgetgear cn3722 mppt solar controller 3a 2s 3s 4s lifepo4 cell or lithium battery charger 3 0 out of 5 stars 1.
Maximum power point tracking function.
Mppt or maximum power point tracking controllers are far more advanced than pwm controllers and enable the solar panel to operate at its optimum voltage for maximum power output.
Using this clever technology mppt solar charge controllers can be up to 30 more efficient depending on the battery voltage and type of solar panel connected.