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Yeah I posted screenshots from the xiaoxiang top link. If only he included source code on the github instead of just advertising for his app. I'm reading the data over serial but accomplished reading it over bluetooth as well with an ESP32. I would have been done with this a while ago if I...

Bee's knees. Got it all hooked up. Have some massive issues reading data from the MPPT reliably which was no good for the purpose of performing actions based on values. Basically when parsing something like panel voltage, 'VPV 220933" I'd drop characters. So I had good luck reading data...

Box looks awesome, you've given a lot more thought to where things (wires in particular) need to go than I did. Hard to commit to cable management during testing and with everything subject to change... may just go velcro cable wraps. This bitty is full bluetooth (cell voltages, pack voltage...

Damn dude today I learned what zip wire was. I've been looking for something like that for an eternity and the best I found was low voltage landscape lighting wire which is super soft to the point that separating the two wires can expose one of them as it tears too much. And I just spent $50...

The 'lifepo4 60a with UART' version 4S - 5S (the text is clickable, i dont know if links turn blue on latest forum update) and the 'lifepo4 30a with bluetooth module' version 3S or 4S both came with bluetooth modules from lithiumbatterypcb.com Note that $58 gets you a beefy ass 100 amp...

So, the above sprawl worked out. I received my Dalygreen non-smart BMS yesterday after like 40 days waiting. Thankfully I didn't notice until this morning when I was going to work because the two bluetooth BMS units I had ordered arrived this afternoon after like 8 days waiting. Both from...

For what it's worth... a $5 Arduino Nano clone and some C-work and I'm reading values from SmartSolar MPPT over VE. Direct. Also got it working on ESP8266 units but having serial communications issues intermittently so I can't even deploy to one anymore. Will deal with tomorrow but can read...

Well that f'n sucks

Damn, what a pain in the ass. I can understand why you went with FLA given that potential setup... but yeah, the inability to measure internal temp... I've discovered a handful of threads and githubs across the web for reading data from the ve direct port on the smartsolar (5v) and the BMV...

I guess my only gripe left was in first post, had to screw around getting a stud to thread in straight. And the slight curvature to the cells may have been reduced but is still present. Shamus said his cells straightened out. Plus his were the same cost as mine and by CALB. I don't feel like...

2 days before hand? I'd consider trying to power the temperature controller constantly and routed through a LVD (or load output terminals configured), would be interesting to know how much power it takes to maintain the ammo can and what could be gained from adding an insulated blanket to it...

Been thinking about this for hours. I suppose heat strips would be best suited on the bottom walls or absolute bottom of the ammo can, and if on the absolute bottom the battery could be sitting on top, elevated-with an air gap. Also no clue on the wattage to use for the heat strips. Luthj...

Good to know, I've done it for large battery lugs (blow torch, fill cup with solder, insert 2 gauge wire, hammer crimp quickly) think I saw that somewhere on youtube and it made sense given that my hammer crimps weren't always precise. I did it for the small uninsulated balance leads on the...

One from amazon a few years ago. Works a lot better than the $8 yellow or red handled ones you can get anywhere. Makes a solid square indentation in crimp ends. Strips most wire pretty well, softer jacketed stuff sometimes struggles but for the super flexible silicone stuff I've found it best...

Final update on this before I create a build thread as I'm throwing it in to an ammo can. This will include all the stuff learned from this thread including getting a custom pack in to operation and will be the steps I follow to a T on my next build. Yeah, there will definitely be another as I...

Good to know. I installed the powerpoles years ago just because I hated fiddling with two wires so close together in screw terminals that could wear out. Just was unsure of whether "do not disconnect under load" applied here, and played it safe with a blanket over the roof this whole time...

PRAISE! I discharged 104 or so amp hours today and monitored remotely from work with the security camera aimed at the BMV712 display unit and an RC cell monitor to watch lowest cell voltage. This was connected to a wifi-controlled power strip so I could toggle outlets on and off and pull...

Dude... Holy shieeeeeet. I've never seen an ammo can like this. Damn shame that even a 50cal fat can isn't a hair wider. BUT this means I can fit a whole bunch of stuff inside. I might even put my charge controller inside and cut out a port on the can that mates up to where CC backing is...

I also have powerpoles on my charge controller. Is that to say I've been wasting my time and looking like a doofus putting a blanket over my roof when doing work? I always heard to not connect/disconnect under load. That makes sense if you're undoing screw terminals, but is it a null issue...