hi I have :

Problem a 3680 w ( 92v x 40 amp )system is only producing a few hundred watts ( 100- 400 W) output

- Victron multiplus ii
- ,48/5000/70-50,

- Victron mppt charge controller
- 150/70 tr 5 kva /5kw
- 150 V max 50 Amp

- BAAG 200amp GEL/AGM battery, 4 x 12v in series to 48 V
- Renessys PV panels x 10 PV Panel fuse 32 A 1000v dc - df pmx
- 10x wired =series (2) Parallel (5)
- Each pair is 92 v ( 2x 46v) ,
- 8 amps x 5 parallel = 40 amps
- Tested on roof ie before cable down V (open) on every panel range from 41 to 42 v - winter.

- PV Panel fuse 32 A 1000v dc - df pmx 10x Each pair is 92 v ( 2x 46v) at 8 amps
- Cable down from roof at 10 m outer diameter( ie around insulation) is 5mm - could this be the problem ?
- System - Relay 1 state - open
- Winter ( OVERCAST) can see any shading problem on roof
- no errors
- no trees
- Clean
- may be slight blocking of some tips of panels by other panels in afternoon sun
- but this cannot account for such a unacceptable output ie 10 %
- see gateway and solar charger in vrm out put
- solar charge v = 84 v approx
**pv current 3.5 v ???**- solar charger battery voltage max 57.5v
- solar charger battery current max 4 amps
**System - ESS Battery life state = stuck on restarting ??****solar charge summary battery****battery watts = 66w****charge state =****float,****voltage = =55.6v ,****yield today = .26kwh, ???****yesterday .48 watts ??**

- MPPT state ( 258 )
- off till 7 am
- then till 10 am = bulk ,
- after 10 am = float

solar charger battery volt battery went from 54 v - 51,6 v THEN DOWN TO 55.2 V

- System battery power = no data
- System battery voltage = 54 51 and 57 to 55.5 v
- PV yield during blackout 8 am to 10 am today (ie grid blackout )
- before blackout= 0 w
- 8am - 10am = 200 watts ???
- amps from .6 amps to 4 amps
- after 10 am battery quickly went 50.4v - 57.6 v and amps went from 0 amps to 1.2 am

- why such low watts and amps