Recent content by kommando

Setting it as ID 1 is the correct way but it looks like the current firmware is corrupt. So you are going to have to force a firmware for which you will need a code from https://mirofromdiro.github.io/JK-firmware-code/ As this bypasses the checks for the correct firmware then you have to be...

I thought the JST GH was closer but depends on the pitch https://www.scondar.com/wire-to-board/gh-1-25mm-pitch-connectors/

This -1V bug seems to be inconsistent. See post 6 on an SI-6048US https://diysolarforum.com/threads/top-balancing-using-si-6048.83396/ I am running SI6048 firmware 7.304/7.300, so maybe its a bug that is firmware specific or only affects 50htz (mine is 50htz) and not 60htz. If you could...

Due to the severe angle it does create a weak point from which a fatigue crack could propagate but you would need a movement cycle for the crack to start and then extend ie caused by vibration. So you have a potential weak point but no condition to take advantage of it unless your genny is...

Until the float function works via the Canbus comms if you need a float V and an adsorption V then you need to be changing the RCV to suit. As to whether a set of well balanced cells needs a period of absorption is not something I have looked into, being PV charged I get that by default anyway...

It will jump to 100% once it hits the RCV, to get it higher than it is now, but it wont be 100%, then start charging and when the voltage climb levels off then change the capacity by 1ah.

I am PV only and off grid so can't answer you on grid queries. The ports that work with the Windows App are two marked RS485-2, these are the greyed out Uart-2 in the app that are fixed to JK-BMS RJ45 Modbus V1.0. So one can be used to connect to PC and 2nd to next battery. To drop your charge...

The Seplos cable is just a factory made cable with a USB RS485 included, so copying it should work. As the Windows app that uses the same RS485 ports connects differently depending on whether the dip switch's are set to 1 or 0 then try both dip switch settings. Dip 1 gives access to the one...

Set my BMS to 0 on Dip switches, windows software connects but goes straight to parallel tab showing real time data for multiple batteries but as I only have one the rest show as disconnected and cannot get access to any of the other tabs as they are greyed out. If you select device 0 when...

Still only got one battery/BMS, parts for second are on route. I have mine set as 1, only setting I can get RS485 to work so assumed that would work for setting up 2nd battery. Then after 2nd battery was set up it would be set to 2 and linked to 1. Will have to try 0 tomorrow.

Assume you have one BMS set as 1 on the dip switch and the rest as 2, 3, 4 etc, so 1 is the only BMS sending canbus messages to the SI, check the RCV it's set to and compare it to the SI. It may need the SI to be put to standby and restarted.

I don't see the point of going above 3.6V unless you are planning a capacity test. They are still balancing at 3.5875V, let them do their thing. This was why I went for this BMS, active balancing at 2A.

Unless your house was built around the battery it got up there on its side and has to come out on its side. I would never have a battery in the loft anyway, too hot in summer plus difficult to get to. Mine are in an out house with the inverters.

Leave it 24 hrs and then see what the cell delta is for each battery. Your worst battery pack is currently at 10mv delta, no need for a top balance if tomorrow you see the same or even slightly worse. Just setting balance at 3.45v will keep them on target. Its a pain telling the SI to go back to...

I would calibrate the voltage for each pack, then see how close they are. I suspect they will be close enough they will top balance without resetting the SI.