I saw my purchase as directly economically supporting someone I hope will be around in a few years to build other products (or maybe help me troubleshoot). I could have easily spent a lot more money on Aliexpress or Amazon and received various black boxes that I wired together with no understanding of what is occurring on the circuit boards.
I maybe read it wrong but you seemed to imply there was some inherent flaw in his system. It has been worry free for 2.5 years so if I'm living dangerously I'd like to know. In regards to fearmongering, I've seen the various videos of poorly made dc solar circuit breakers attempting to handle large voltages as well as a failed arcing high voltage switches. I trust the people with more knowledge than me to have a higher level of concern for 50V+ DC in homes and do think it a valid concern. It doesn't feel right to call that fearmongering. And then there is the price difference on all those higher voltage switches and often the more limited selection. I've been impressed with all the 24v appliances I can pretty much run directly from the battery, perhaps that is somewhat true of 48v as well.
Instead, if you want 14s for "reasons" or because you already owned it, great. From my understanding it would theoretically be possible to have two or four of these sbms0 together to have a 48v or 96v system, but that does get a bit more complicated. But literally to go from 24v to 48v would cost around $140 plus two extra shunts and some wires.
I checked last night and my cells were around 9mV apart and not much more than that as they are charging throughout the day, so other than one person on his forum who can't seem to get his cells to balance properly with the sbms0 I can't find a compelling reason to spend hundreds more on another bms of the size I would need. I know some have the sbms0 and also use another bms, but haven't been convinced by their concerns. The way Dacian does it, there really isn't a limit to the bms. I don't need to spend extra if I want a 100a or 250a or 500a bms. If there is a reason this is bad, I'd like to know before I build a system for my brother-in-law.
Currently, a smbs0 is less expensive than a large Chinese bms (not to be overly negative to Chinese products, but generally if they break you buy a new one, you don't email the creator and figure out which part needs removed and resoldered). I can see how many of the mppt chargers, due to their design, tend to lead people down the road of higher voltages to get the most bang for your buck.
It was interesting the dssr50 weighs 0.15kg and the Victron mppt (also fanless) weighs 1.5kg. Again, elegant and effective vs one of the most commonly recommended systems. Seems as if your complaints imply that you are comparing it to a $20 pwm charger that could do 20a and you just get a blinking lcd screen with no real idea of what is happening at any time... It feels like you are comparing Electrodacus to that, instead of what it actually is. A full comparison of costs would not seem to suggest it is overpriced, especially over the lifetime of the unit.
I still haven't found anything comparable on pricing when it comes to getting solar energy into a battery. I don't come here to antagonize people, apologies. I also like eggos.
diysolarforum.com
