google translate and choose file to translate from thereHi! I'm using the sinowealth software with a Daly 4S 80A LiFePO4 battery. I'm curious, the help file is all in Chinese, does anyone happen to have a translated version? I've uploaded what's included here.
There aren't a lot of skills needed.I have no Arduino skills.
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I searched like crazy but found nothing.
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I have spend some time using Google translate + word editing for readable translationHi! I'm using the sinowealth software with a Daly 4S 80A LiFePO4 battery. I'm curious, the help file is all in Chinese, does anyone happen to have a translated version? I've uploaded what's included here.
How have you determined that the current is actually 10 amps?OK so I bought the 250a version of the Daly Smart BMS.
I noticed when I'm charging 10.4 a from my PSU the BMS PC software indicates 11+ amps.
Do I need to do the "10 amp calibration" from the "Engineering" menu?
I had assumed this was something they would have done in the factory.
Sorry for the repost, I wrote this in another Daly thread and nobody responded.
I had that bms and after a clean start it began to generate demonstrably false current and voltage readings. The bms reacted as if the false readings were true, and eventually did not come back on after a reset procedure.OK so I bought the 250a version of the Daly Smart BMS.
I noticed when I'm charging 10.4 a from my PSU the BMS PC software indicates 11+ amps.
Do I need to do the "10 amp calibration" from the "Engineering" menu?
I had assumed this was something they would have done in the factory.
Sorry for the repost, I wrote this in another Daly thread and nobody responded.
Good question,How have you determined that the current is actually 10 amps?
Yikes.I had that bms and after a clean start it began to generate demonstrably false current and voltage readings. The bms reacted as if the false readings were true, and eventually did not come back on after a reset procedure.
As an example I’ve attached a picture showing a non zero current with the load side wire detached. If you get stuck Daly had suggestions which i could retrieve from AliX. They are different from what appears in the documentation. I can’t comment on their effectiveness since I couldn’t execute them on a bricked device.
For sure the amperage is not readed from this wires. I have never opened a Daly BMS, but amperage is evaluated either with hall effect or with a shunt.Can the additional resistance from the extended wire lengths really be causing such a massive misreading on the amperage?
just wondering if they have something hardcoded in their software.
Yes of course, I meant voltage variations on cells. I think I read another person's post about the Daly smart BMS being wrong on cell voltages and in my tired stupor applied this conversation... thanks for checking me. definitely a duh moment.For sure the amperage is not readed from this wires. I have never opened a Daly BMS, but amperage is evaluated either with hall effect or with a shunt.
Given the about 10% deviation you see, I would fgive a try with the calibration.
If this possibility exists, there must be a reason ;-).
I think you are smart to be careful about lead resistance. I had a couple of crimped leads which tested closed but opened up when I attached them to the terminals. I spent a lot of time chasing that down. To confuse things further the bms failure looked like one of the cell sensing circuits developed a problem, which eventually drove it into perma-off. Note cell 1 reading in picture - DMM measured 3.35x.One other thing, I don't think this matters but the way the cells are arranged,
2 parallel collumns, the leads for the BMS were not long enough so I cannibolized leads from a failed ANT BMS (bad mosfet I think).
I made sure the leads were all equal lengths so no weird resistance differences. I soldered nicely and shrinktubed the connections.
Can the additional resistance from the extended wire lengths really be causing such a massive misreading on the amperage?
just wondering if they have something hardcoded in their software.
This arena of questions is part of why I chose the Chargery BMS with a 300 amp shunt for my first DIY LiFePO4 build (and noticed you can go up to a 600 amp shunt). I liked learning (there is more of a learning curve w the Chargery) from having to study all the configuration adjustment options (first by studying manual, and then opinions about the options, and then by doing it yourself). Of course one added challenge to the Chargery BMS is adding your relay cut offs. I figured out some options I liked combining some Solid State Relays with some Kilovac EV200 500 amp rated relays that have a very low 1.7 watt rating for coil clamping relay switch (with their built in coil economizer) after a brief inrush current that closes the mechanic relay switch. I liked finding some of those Kilovacs used at low price on eBay (overkill for my need w up to 500 amp rating/ at good DIY price. My specific needs for relays might be different that many as I am dialing my a 3 unit All In Ones / MPP LV2424 set up. ... just thought to leave my comment as food for consideration. :+)claiming the current rating for charge is 250A. (I would still de-rate by 40-50%)