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@piper18o The low voltage adapters are only needed if you have a 12v or 24V battery JKBMS (4s to 8s) . If you have a low voltage RS485 adapter model the writing on the front should say "low voltage" in Chinese like my previous picture or the newest one I got of my 3 actually has the JK...

Just to update here - I did get another "Low Voltage" adapter and my new 3rd BMS is working fine and communicating to my VENUS OS via USB The newer BMS sw screen does specifcally call out RS485 but the GPS port seems to work the same. So first they sent me the Hi Voltage model, then I got a...

I have 3 JK BMS all with same issue of dissappearing bluetooth. I use the VENUS OS and PI setup with the USB interface that that is reliable no issues. But if I want to use the JK app over bluetooth to change a setting I often need to power off the JK using the optional power button. Once I...

I had a bit of a struggle with getting the RS 485 to work and I beleive the seller sent me the wrong adapter. Kind of related to the topic so I hope this can help someone. I have 2 working BMS with the my Raspberry running VENUS OS and was adding a third here. Here is a pic of the older...

Hi All, Just wanted to share a design on how to remote control the charging on an AIMS "Green Monster" PICOGLF25W12V120AL I have a ESS / solar system with 11KW of battery and often times I wanted shore power active but did not want the batteries to be charging - like during the day when my...

Have a similar issue with my same AIMS inverter/charger 2.5kw green monster. When the BMS does stop the charging (due to slight imbalance of cells) the AIMS inverter charger will spike to mid 16V and trips its own overvoltage warning. It does not happen all the time but only certain times...

I assume you had on over voltage fault. I see this occur when BMS stops the charge but the AIMS charger is in fast charge mode. It must hit the 16V limit. Alter 1 minute it goes into fault mode with the constant beep.

Hi All, long time lurker first time poster. I just wanted to share the NTC Temp sensor connector type for the JK B1A8S20P BMS and B2A8S20P BMS. I spent a lot of time looking and finally stumbled upon the right type. I wanted to build an extension and did not want to cut and splice. I could...