Exactly. I use HomeAssistant to keep an eye on the SoC and that activates the grid charger when the set low value is reached. To prevent the battery goes to low. I just upgraded this a few days ago to a new more powerful Victron BluePower 12V 30A actually. I am planning on also replacing the...
offcourse there is a monitor on it. ;)
This is my custom dashboard in HomeAssistant. Pulls in data through node-red from MQTT on a raspberry pi with VenusOS. I have a thread about it on here. I think you replied there too about my 11 x 8Ah battery bank (88Ah). Or on one of my previous...
I have a small server, intel NUC, that uses less than 5 watts at 12-19 volt input. So it fit perfectly in the range of charging voltages for a lifepo4 battery. I have a 12V 8Ah lifepo4 cell I want to use for this UPS. Combined with a victron smartshunt/bmv to monitor the SoC. It will not be...
I have found a local shop that sells various battery stuff and also BMS'es...so I placed an order there. I got a JK Smart Active Balance BMS BD4A17S4P which is supposed to support 8-17 cells, has bluetooth, can be configured for 1.2v-4.5v per cell, 40A max current. It was 45 euro's and should be...
Ahh, I see. I sort of low voltage cut off not for the whole pack but when one of the cells get's to low. I am still thinking a BMS is the way to go...but I want something cheap and if possible not reinvent the wheel. Also...considering my actual goals those low voltage situations might never...
I think the capacitor pack I bought that had voltage differences just have low quality caps or something. I have also been asking ChatGPT about this and it said something about causing a reverse voltage potentially harming a capacitor when it reaches 0.0V earlier than the others and when still...
I never said it wasn't suitable, but besides that I am not from Australia I couldn't find anything on the link you mentioned either: ;)
To me looking at just the picture it looked like a similar thing to the simple cheap "circular boards" I already have that activate a resistor at a voltage...
I got them pretty cheap I think for about 25-30 euros for 5x 2.7V 500F super capacitors on amazon. I have 10 now and thinking of getting more....but ONLY if I can use them safely and correctly. Meaning both balanced voltages across the cells and protection/prevention of more than 2.7V. A BMS is...
I have looked at some LTO BMS's that might be suitable...in the price range 50-80 euro's from what I have seen. Also with a high AMP rating ofcourse of 100A or more is what I am looking at. Not that I really expect a super cap bank to hold that much current for long, hahaha :ROFLMAO:
Thanks...
I have a few super capacitors and want to make a module out of it with an actual BMS to balance the voltages between the cells.
I have loose 500F 2.7V supercaps that I have done some experiments with. No protection circuit yet. Charged with a bench powersupply tot 2.6V manually until no more...
Now that is a way more constructive and motivational reply! ? Only issue is I can't create a height of 5 meters...as my ceiling is at 2.5 meters. I can do a pulley system...which will also minimize the load/torgue/(whats the term) on the gears that pull it back up. And maybe the motor.
I plan...
If you meant to me (or others)...I am starting to "Get it". The idea is great,clean,free (as in not costing fuel or money)... but is not really "usefull" on a small scale. Only as a learning experiment it's a good project, but not as another way to charge my phone. That message got through. ...
I had no idea something like this existed!! That's so awesome! ? ?(y) That product gives hope there is at least "something" possible with it in a small home environment....just not charging a phone maybe. It also gave me another idea...using pulley's to "increase the height" while still having...
I do have lights on my bicycle yes...but pretty sure they are battery powered actually. Might have to change those as I have not been using my bike for about 2-3 years now :ROFLMAO: :ROFLMAO:
The idea came when looking at a possible swimming pool at about 11km and what route I would have to...
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Thanks for the reality check! I have done some more research and it's not as simple as I had imagined it to be...it will never generate as much power as I had hoped. In my mind...as long as the generator is spinning the required RPM's and has the torgue things would be "ok". I had no idea the...