mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
i had used mppt blue sky 2000e for over 4yrs, and i am now using, PWM xantrex C40
i can tell you with 17v panels, the daily totals on "clear sunny days" is almost identical, Not worth the extra price of the MPPT
BUT on days of changing weather, days that start out cloudy or over cast or rainy
its the MPPT that will have the higher charge (amp hrs) at the end of the day
there is gain with mppt and nominal voltage panels, but only under specific conditions
but IF you have high voltage panels, you need an MPPT controller
or you are just throwing away watts, that can be converted to amps
too many people in this thread are doing an apples to oranges comparison
and that makes for comprehension errors
another reason..why i keep saying its about watts not amps (but i'm flogging a dead mule) nobody wants to listen to that one
i can tell you with 17v panels, the daily totals on "clear sunny days" is almost identical, Not worth the extra price of the MPPT
BUT on days of changing weather, days that start out cloudy or over cast or rainy
its the MPPT that will have the higher charge (amp hrs) at the end of the day
there is gain with mppt and nominal voltage panels, but only under specific conditions
but IF you have high voltage panels, you need an MPPT controller
or you are just throwing away watts, that can be converted to amps
too many people in this thread are doing an apples to oranges comparison
and that makes for comprehension errors
another reason..why i keep saying its about watts not amps (but i'm flogging a dead mule) nobody wants to listen to that one
