diy solar

diy solar

Recent content by Archerite

  1. Archerite

    How to charge a small server DIY UPS?

    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...
  2. Archerite

    How to charge a small server DIY UPS?

    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...
  3. Archerite

    How to charge a small server DIY UPS?

    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...
  4. Archerite

    BMS suitable for super capacitors

    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...
  5. Archerite

    BMS suitable for super capacitors

    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...
  6. Archerite

    BMS suitable for super capacitors

    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...
  7. Archerite

    BMS suitable for super capacitors

    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...
  8. Archerite

    BMS suitable for super capacitors

    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...
  9. Archerite

    BMS suitable for super capacitors

    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...
  10. Archerite

    BMS suitable for super capacitors

    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...
  11. Archerite

    Gravity Generator with weights (like an old style clock)

    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...
  12. Archerite

    Gravity Generator with weights (like an old style clock)

    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. ...
  13. Archerite

    Gravity Generator with weights (like an old style clock)

    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...
  14. Archerite

    Gravity Generator with weights (like an old style clock)

    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...
  15. Archerite

    Gravity Generator with weights (like an old style clock)

    @ 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...
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