Recent content by edcoopered

Its interesting as AFDD (as we call them) are just about coming to market here in the UK. They are predicted to become more common place in years to come, we have a lot of really old buildings with extremely dubious fire safety so its a surprise we're so far behind with this technology...

Is the characteristics of the load that's the challenge, you're going to get this issue with most HF inverters trying to run universal (brushed) motors. I imagine the suppression caps in the saw are probably not in good shape either. The grid has a very low impedance, it'll suck up the crap...

I think in some cases where people are getting this fault out of the box with Seplos there is something wrong with the BMS and disabling this protection just causes that fault to become very apparent when the BMS goes boom! That's why if you're getting this fault on day one, return the BMS, if...

Was your system otherwise working, with a transient short circuit shutdown issue that happened once a week/month, or was it behaving like this out of the box? I suspect there's two very different issues getting mixed up.

Why do you thin the Seplos balancer will be inadequate, I've been running a 230Ah 16S pack on one for 18 months, cells went in balanced and are still balanced. This obsession with balancing is IMO driven by poor quality cells (or maybe poorly built systems), the constant rebalancing makes the...

If you read my original post, I was having the same problem, my caution is regarding mciaio's experience though there could have been a defect with their BMS anyway, and disabling the protection, just turned it into a more catastrophic fault.

There's probably a comparator doing the short circuit protection, would be trivial to have the micro hold its signal low, or use an internal DAC to generate a bunch of different thresholds for different revisions of the board.

Mine is still working perfectly with the short circuit protection disabled, if you have an established, static, otherwise working system, with an appropriately rated fuse then I see no harm in turning it off. If you're struggling with this error during commissioning of a. system then I think...

Rodents and DC are a recipe for nightmares, I'd suggest you secure all the DC cables in way where even if the insulation is chewed off they cant arc together. I wouldnt worry about temperature, if you're cycling them every 24 hours I doubt you'll heat them much.

One online system, and then one back-up system buried in a steel box!? Just don't go set the new system up too early on...

Working beautifully for me, gives me extra peace of mind as it throttles back if things start to get warm, and will disconnect the load if anything gets wonky.

I brought my seplos from an aliexpress store called Minerals. Ive found the 3kw works pretty well, very rarely do I have loads over 3kw and even when I do it’s only for a few minutes when cooking. The money I saved on the inverter (only cost me £400) will more than cover the import costs, but we...

Sofar ME3000 SP and Seplos BMS is a winning combination for me, I use hardly any peak rate electricity now - though winter will be tougher!

Funny watching it launch flaming cells off into the forest!

I don't understand the logic in building a pack which you know is going to get destroyed by over discharge and overcharging in its first few cycles, and then relying on the chemical stability of LiFEPO4 that it doesn't turn into a blazing inferno. While the cell itself in a metal box (under...