drbytes's latest activity

I raised the issue with Docan and after some back and forth they are willing to send me a replacement cell, but I need to pay for the...

Float: 52.8v , Bulk: 55.2v

Well,... No, its not doing it's job, it disconnects on high voltage, that's fine (there are reasons why it hit that, one of the reasons...

Hi. I have 304 and 280ah batt bank, wired in parallel, both have a JBD BMS, the one with the relay : Jaibaida AP20S003S 7~20S. I'm...

I just created a script that runs once a minute via crontab

Sounds like the sensible thing to do. Actually, thinking about it, when you are on battery you actually have a floating or IT system...

It's interesting, when the system is in ByPass it'll have two hots, rcd triggers when fault testing, when it's in solar/battery I have a...

Ah, I also live in Belgium. You wouldn't want an auto transformer, it cannot create a true neutral, I checked with EREA and others. I...

I live in a land with 230 Pixies available at the electric tap. However I have no Neutral, I have 3 x 230v. So 230V between fases, 135V...

Latency on the internal relays, one will always be slower and cause earth fault? I'd love it if you found out, currently I have no RCD...

I'm using the esp8266 unit. I'll have a look for a esp32 unit. Thx for the tip --- I have a raspberry pi next to the batteries to...

Awesome thread. If this works it will help mitigate the problem I have with my bms; they shipped me a version with no RS485 support...

Huh. I wasn't going to make a post about it but I've recently received my batch of 280Ah cells, 16pcs, from Docan. When I place these...

Ive since ordered a second one. As a bms it's pretty good tho tracking of the SOC is not good at all. So the second one has no rs485. In...

Ok .. I got a Victron Energy smartshunt. I can read the kwhin/kwhout from it.

I've rolled my own kwh energy meter for energy in and out of the battery by sampling the watts in/out at a fixed interval. It works but...

It makes no difference if the parallel cells are different capacities. You don’t average out the capacities when in parallel - you add...

I think you need to set that in your charge controller. I mean, if it can not detect that the battery has been disconnected it's not a...

I do like the simplicity of this setup. Might blatantly steal this design for my own ground mount

Ok dude, respectfully, please stop. I don't shy contrarian POV but they have to be informed points, not just random stuff flung to the...