Recent content by lonertic

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    ENJ Power for Heltec/JK BMS

    LOL yeh I can solder and so can most others, that's the easy part. What I meant was, not everyone's gonna be comfortable taking apart a brand new BMS that ain't broken. so if we can get a plug-n-play solution, that makes the solution far more repeatable and supportable for ourselves and others...
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    ENJ Power for Heltec/JK BMS

    Didn't want to risk losing warranty by breaking the seal to open them up. Already had to send one back for warranty repair/replacement. Besides, if I take it apart and start hacking the connectors etc, that isn't necessarily gonna help the next person who's not comfortable doing that, so ideally...
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    ENJ Power for Heltec/JK BMS

    so, without the CANbus chip, are those 3 wires just normal TTL serial signal then?
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    ENJ Power for Heltec/JK BMS

    Hmm I must've got a very strange version then? 3 pins on the CAN/RS485 port. measures exactly 3mm apart (so 1mm pitch), and it's a JST GH style socket which is typically only available in 1.25mm pitch. I agree with @Steve_S here - would you guys be able to provide some "pigtails" for these...
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    ENJ Power for Heltec/JK BMS

    I've got the new version (hardware 8 maybe?), cant remember if HW6 is the same, but this is where it gets interesting. It's a JST GH style socket but the pitch is 1.0mm. I cannot find anyone selling a JST GH 1.0 male socket. There are plenty of JST GH 1.25, but not 1.0mm. and it's also a 3 pin...
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    ENJ Power for Heltec/JK BMS

    Yup c#, originally .net core, now .net5. currently only sending a few fields, like %/Ah remaining, current power (in W's) etc. The raw data is sent to influxDB on localhost (skipping messaging), then HomeAssistant+Grafana on another box does my pretty graphs from the Influx data. Future plans...
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    ENJ Power for Heltec/JK BMS

    I'm not using SA (actually I'm just not smart enough to set it up, I'm a Microsoft guy so when i started this a couple years ago, even a bash script was alien language to me, let alone python), so i wrote my own .netcore code that sucks up BLE data from the JK's and PI17 over hidraw (USB) from...
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    ENJ Power for Heltec/JK BMS

    Ahh perfect! I have a couple of spare ESP8266's lying around so I might even see if i can use the GPIO pins directly against the BMS's port. Are you also having the same reliability issues as I have though? I was pushing 150A+ continuous discharge through my 200A BMS (but for like an hour...
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    ENJ Power for Heltec/JK BMS

    Ooooh i was curious about that! So u got it working? I never bought the RS485 module and have always just used BLE. I was the one who captured all the BLE packets for Jblance so I've been using it in production for more than a year now. But recently I'm having BLE instability issues and was...
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    Daly 8s 24V 200A LiFePo4 Smart BMS

    fair enough, you have a good sized system I believe, your batteries outsize your solar by a huge margin, and your solar outsizes your usage by a fair margin. Hence with that in mind, as I said your system is barely under any stress, so you should see plenty of life left in it. The danger with...
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    ENJ Power for Heltec/JK BMS

    I have a feeling there's a totally different protocol involved here.. What I ended up mapping out was the Bluetooth BLE protocol, which looks VERY different to the official RS485 document the supplier have sent me. Ironically i chose to go the BLE route because BLE supports multi-point...
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    Daly 8s 24V 200A LiFePo4 Smart BMS

    There's a few things I'd like to pick with your post.. What does that even mean? ma is a measure of current.. not capacity or voltage, that isn't really a measure of health of cells? Health is usually measured as either internal resistance, or variances in voltage between cells, or mAh total...
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    Not really BMS, but need a wireless 12V voltage/current monitoring solution

    Hmm the victron is a bit pricy for my needs.. considering a JKBMS which does all of that and is a full BMS is only around $200 shipped. I was hoping for something much less considering i only need it to perform monitoring functions and can even be contactless as I don't need absolute precision...
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    Not really BMS, but need a wireless 12V voltage/current monitoring solution

    Hi guys Anyone know of a product (links will be great) that can monitor the voltage AND DC current (in and out) of a 12V bank, wirelessly? (either Wifi or Bluetooth, ideally with phone app, but not a deal breaker if i have to write my own code)... Basically most of the better BMS's already do...
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    Daly 8s 24V 200A LiFePo4 Smart BMS

    Yup I had another question out in another thread somewhere asking whether it's possible to run a separate active balancer on top of the JKBMS's built-in balancer and whether it'd cause problems... and it seems like the prevailing answer is it'll be fine (even the JKBMS seller said the same thing...
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