Mppt rs 450 max 10.8kW

so I have 3 strings 9x450w panels

I read the rs450 has 3 x 4kW max and 11.5kW total max

but maybe you will hit that 11.5kW across 4 strings if you had 3kW on each

cause mine maxes out at 10.7kW. 2 of the strings reach peach 4kW and 3rd string is 3.3kW. it’s not a panel problem cause the charger alternates from time to time which of the strings to reduce by 700W

so not sure if that’s normal or bad setting or needs update

I have dc charge limit disabled

Datasheet claim 11.5 kW at 57.6 V.

What is your battery voltage at the specified moments ?

I have 4x victron smart 330ah. the peak stop charge set to 56.8v

here is ss during charging

It is limited to 200A.
At 54.15V, max output is 10830W.

ok I understand, wasn’t aware was voltage dependant

to me doesn’t make sense rating at a voltage batteries are full :rofl:

should be at a voltage most people actually charge at

no big deal thanks

how come the solar power on VRM is less than direct on charger?

Could be the difference between pv watts (input) and battery watts (output). You can calculate the efficiency of the rs450 that way. My 450/100 “loses” a lot more than my 250/100. If you have enough panels its not too bad.