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If people are brave enough to post details of their accident for others to learn from, I think they deserve that comments are moderate in tone and not disrespectful, otherwise how likely are others in the future to keep their failures off the boards, instead of risking it? Forum moderators...

Everyone wants to grumble on this forum section about vendors who don’t deliver what‘s promised, so I thought it was a good idea to mention a supplier being honest enough to give me good advice, even at the cost of making a sale. That supplier? Amy Wan. I contacted Amy because I wanted to buy...

Slow down a bit please @mvas. The guy is a new member who’s posted three times and I wouldn’t be surprised if he doesn’t stick around if he’s getting cross examined like he’s on trial. All he said was that the company he bought from advised against it, so don’t shoot the messenger. I happen to...

According to the second line in the chart of my Google lens translation of this slide from the 2023 “Senior Engineer Lithium Battery Conference” in Guangdong China, (Oct ‘23), down to 0.35-0.38 yuan per Wh ($48-$52.5/kWh) by the end of this year and a modest drop to 0.34-0.36 yuan per Wh ($47...

Those spam guys really helped us out!! 😁

”A good tool is one tis safe”!!

It seems like the advantages of sodium batteries being pushed by the sellers are “high” cycle life (4,000 cycles - lower than LiFePO4 ?), tolerance of charging at low temps to -30C, 3C to 5C discharging and ability to discharge to zero volts without damaging the battery. I suppose some of those...

I’m constantly impressed by the quality of the info available here and the patience many people have in answering the questions of others. Long may it continue!

I hope @Will Prowse notices the increased problems people are having recently with Daly BMS products and makes a video about it to raise awareness.

I looked up SFK on Google maps out of curiosity to see what their Google reviews were like. No reviews and no option to add a review. In other words they’ve ticked the box to prevent users leaving a review associated with their maps entry. Why would a legit business with happy customers do that...

I asked a vendor I’m in contact with about this issue of whether or not to clamp cells today. They answered : “If discharging at 1C or more then yes, it would be better to compress them. Because high current charge/discharge will cause the cell inflating. Otherwise, it is ok to make them...

Well this thread began three months ago as a review thread, and every review needs a conclusion. There’s plenty I like about this device, Dacian’s Electrodacus software with its informative display and remote connectivity via wifi gives you a powerful tool for seeing not just what the system is...

Santa is hoping to make his rounds this year despite the shortage of presents resulting from so many of his workers going into Elf isolation..... ..... he has special permission to travel during the pandemic because his reindeer have been found to have herd immunity!

The imax charger is going to slow the charge down to a tiny trickle as soon as any one cell reaches the max level set in the charge profile, and is then going to attempt to bleed out energy from that highest cell at milliamp current rates using a resistor about the size of a grain of rice, which...

Am I the only one wondering how much of a connection there is between the fact Ray recently outed SFK’s bullying behaviour and the fact he’s now being attacked by multiple posters as being commercially influenced to promote Docan? New member @The_truth managed one whole post not on the subject...

Can I get an email confirmation that it worked? ?

What risk is it you’re concerned about? I can’t see any risk which increases as the number of cells in parallel is increased. Also, you may have read it on here, but doesn’t mean it’s true - “getting even charging requires no more than 4 batteries in parallel” sounds like made up nonsense to...

I ordered a few different types of DC/DC converter modules from amazon all of which had vague specs like “up to 95% efficient“, so I started to wonder how efficient they really were in the application I wanted to use them in. All work in a similar way - you connect a DC voltage at the input...

Front ending a sodium battery with a bidirectional DC/DC converter which sets a constant 48V to keep the rest of your system happy and lets the sodium battery wander over its whole voltage range might be a solution. But such a device would need to handle high currents (sodium discharging down...

When the covid-19 pandemic hit and we were all panic buying toilet rolls, in Germany it was cheese and sausages which were flying off the shelves… It seems the Germans were preparing for the wurst kase scenario!

I’ve successfully connected to my new Daly smart BMS via Bluetooth today, and it took just a few mins to get connected because I had the right info from this and the other Daly threads on here. I’ll summarise what I did in the hope it helps someone else. 1) connect NTC thermistor to NTC port...

I love the clear categorisation in this forum and find that almost everything is covered, but there’s one thing which I consistently find difficult to place into any of the sub-forums, and that’s maybe best described as “general electronics” or maybe “DIY electronics”. We have sub-sections for...

Back on topic, the electricity prices here in Sweden are now approaching 5 kronor / $0.47 per kWh for a 12 month contract. News broke yesterday that the electricity suppliers may be seeking to cancel fixed price contracts taken out at lower prices from earlier this year or previous years (you...

I’ve received one of the new “3D brothers edition” Electrodacus SBMS40s from the prototype batch, as offered forum members for review purposes recently by Alex Gradea. It’s not clear to me right now what, if any changes might feature in the production batch of units, so for now I’m assuming...

I’m at 59.5 deg N, but I’m sure there are forum members higher than me (and some further north too! :LOL: )

If the cells have never been top balanced, you could be waiting almost forever for your charger to balance them out at a measly 0.3A. You are probably better off disassembling the battery and reconfiguring the bus bars so all the cells are in parallel, then putting your charger back on and...

It’s back from the shop now with a new M7 grub screw and nut installed. The guy said he drilled down about an extra mm and i inwardly winced, but the battery is connected up in my system now and working, so all is good ? The cost was just 100 Swedish kronor - about $10…

Hopefully the expense of using an F-22 and sidewinder to shoot down this balloon will be repaid with useful intelligence to answer the one burning question we’ve all got - exactly what kind of charge controller and BMS were the Chinese using on this solar setup?? :unsure:

Nerves can and do regenerate but it happens very slowly. And I’m speaking as someone who suffers from an autoimmune nerve disease which last year meant I couldn’t even hold a pen and write, and now I’m not perfect, but much better. I would say @ken morgan don‘t worry too much that what you’re...