My setup:
Victron Multiplus 48/5000/70
Bluenova 490ah 52v LiFepho4 battery bank
2 x Victron Bluesolar 150/70 MPPT controllers connected over can bus
5kva panels
CCGX running ESS
I am running into an interesting problem. My battery bank is usually fully charged by 11am if we have good sunlight. Once it is fully charged, I plug in the granny lead for my I3 to let the excess power charge the vehicle. What I expect is that the 3.5kw load will be supplied by the MPPT controllers, as there is more than enough sunlight to do so.
What I find however, is that something is throttling the mppt controllers, so that they will only suplly 50 - 60% of the load, even though they have supplied way more than that earlier in the day. Should we have a cloudy morning, they would supply 4kw easily until 3pm, so I know they are capable of supplying the load. So why would they limit their output and draw from the fully charged battery rather than supplying the load from the sun?