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Thank you so much, I've read up a little and found this a fantastic value for money solution. Seems a very solid unit, and the secondhand one will do me just fine, given how rarely I plan on using it. Got one on order now :-) AUD 127 delivered (EUR 78, USD 84). I love this forum, so quick to...

Whatever one does, someone finds something to criticize. I left out the brand because I didn't want the discussion to drift off into the merits of Chinese car brands. Suffice to say it is one that is quite successful in Europe and here in Australia, and not available in the US due to...

I am in the process of putting together a battery system 48V 314Ah LFP with a Victron Multiplus II 48/5000. Victron, in their manual, suggest a 200A DC fuse. Following local regulations I need to provide a means to disconnect under load, so instead of a fuse I plan to use a DC rated circuit...

Thanks! I hadn't seen those. I reckon the MG4 is similar enough the the ZS EV, so probably should have looked in those forums too :) The first of your links is mostly about state of health, SOH. I've had some insights from my car that might help out in that thread. The second link is very...

I know this is a bit off-topic, but I believe this forum is where I find the people who have the most experience with LFP batteries. :-) I noticed that my EV does not seem to balance the battery cells. At the end of charging the voltage difference between highest and lowest cells is quite...

The BMS is supposed to balance. See screenshot from the users manual. In a different section it mentions that the battery needs to be full for that to happen. So top balance only. The problem isn't what it should do, but what it does. It is entirely possible that my car has hit a software bug...

I am in the process of adding an off-grid system to my grid-connected property. Multiplus II 48/5000 and a 16kWh LFP battery (48V nominal, 314Ah). Charging the battery will mostly happen using PV via MPPT charge controllers. On a few days a year, when PV output is not sufficient, I want the...

After 33 pages of discussion and seeing a "DO NOT BUY" added to the title I still have a dilemma. I've got 16 EVE cells on order and will need a box when they arrive. I won't assemble batteries all the time, so I'd like an easy DIY solution. The YIXIANG box seems ideal in that respect. Except...

There are both technical reasons and legal ones. Technical: It took Victron years to get some of the Multiplus II units (still not across the range!) standards compliant to get approval to be used in grid-connect systems in Australia. That has only happened about a month ago. No one outside...

They define "slow" as anything less than 7kW. My home charger, which does 98% of the charging for me, follows surplus solar and will delivery anywhere between 1.6kW and 5kW.

Same for me. I found my old backup files (had kept the data in Home Assistant, but the database got too big and I had to cull it). Looked at every single time I charged to 100% since I got the car in November 2022. Always the same. Charging. At some point SOC changes to 100%. It continues a...

Just for reference, this is what I get with the YIXIANG DIY Case. It seems their balance PCBs are better designed, with lower resistance. I certainly won't worry about those values, seeing the lovely balanced state this battery is in. 1mV cell deviation. Also: With the JK BMS there certainly...

Yes, OBD2. Via an open source piece of hardware called OVMS that stays connected permanently. It feeds data into Home Assistant. The battery cell data makes sense with typical charging behavior. Around 2mV cell deviation in the flat part of the curve (anything below 3.3V). Deviation growing...

@Brucey guessed right, it's an MG. CATL would have been a give-away. BYD make everything in-house with their blade batteries. Nevertheless thanks so much for the detailed reply. Looks like there are many more similarities under the hood between those brands than I expected. Good to know that...

The breaker I would like to use is specified with 15 kA for both Icu and Ics. It is advertised for battery systems (and most of them these days are lithium). An alternative (with slightly better availabiltiy in 200A, but at twice the price) specifies 25 kA. Where did you get the 20 KA...

That was the impression I was getting. Not perfect, but no major safety flaws any more, and no "perfect" alternative. Which firmware version are you on at the moment?

You are a pro. I'm am novice with just a little bit of relevant background. I fear for me the difference between a kit (with little to no documentation included) and the pre-assembled YIXIANG, that essentially just requires the batteries dropped in, would be many hours spent on Google and...

I am running a Victron Multiplus 2 48/5000 in an off-grid configuration. Battery pack 16x EVE MB31, in a Yixiang battery box, with JK Inverter BMS in closed loop setting (200A, 2A active balancer, firmware 15.35). 314 Ah rated, each cell was tested as 330+ Ah as per excel sheet I received from...