I have a fairly simple system Of an MP2 (10000kva) with 4 x pylontech US5000. Where the whole house feed first goes through the AC IN, then it goes from the AC OUT to the consumer unit.
Currently I have wired the batteries through 2 cables (one at top of stack and one at the bottom to create a round circuit) with a 125A DC (48V) fuse on each to protect each cable. So I should be safe to charge/discharge up to 250A (although I think the victron can only charge up to 140A).
My problem is that when using the ESS to do a scheduled charge it seems to limit the charge rate to ~70A (48v)
In VE Configure 3 The Charger tab has a âCharge currentâ set to 140A
Anyone know if there is a setting I can change to get a faster charge?
Info (asked in old community)
CCL is 320A
loads are 0 (I have a solar inverter on the load circuit)
temp is 22 degrees C
There wasnt a limit on the DVCC, but I tried setting one to 200A (no effect that I could see)
There is a 50A (240V) input current limit but I am no where near that (it is currently pulling 14A from grid)
The config looks ok.
As a test, try set the input current limit to 100A, just curious if this has an effect.
You are using an ESS without PV, though this shouldnât affect anything.
If you set the ESS mode to âkeep batteries chargedâ is the behaviour the same?
Please share the advanced widget from the BMS for battery limits and min/max cell voltages.
The charge is still controlled through the Pylontechs BMS and DVCC but your connection type is surely limiting your output and input I have nearly the identical setup but today in the heat Iâm managing 130amps charge and discharge.
My 4 US5000 are wired individually to a Lynx Distributor each fused with 125amp littel fuse
No mate ESS and two solar arrays all on the critical output of the multi, if you go on the show systems you will see my spec and how itâs wired, Iâll see if I can get something from the VRM
PS I limited my multi to 63amps as that was the biggest MCB I could get and also taking in the load of the EV charger so I donât over load the DNO head fuse
Think your limit is the connection battery to battery the pylontechs BMS is cleaver. Check your input MCB RCBO/breaker on the multi before telling it that it can draw more power from the grid. Hope that helps
Like @Janvi said remove the limit remotely as you shouldnât need to change it via the GX no point having it there just in case you or someone else changes it I would say this is too critical to have where someone else can get to change it without physical access to the unit
Your still feeding it in and out of one BMS to balance a bank of two so the BMS is going to control it the cable is just capability not a hard rule the BMS adjusts as it sees fit and the BMS can see two batteries linked through itself
@John245 yeah I stand corrected and as they are only ever going at 80amp the cable rating is not exceeded and a dead short they will pop, would the cable be damaged I would say the cable was damaged for it to pop in the first place.
But do we want to get back on topic and help the OP?
