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mcp

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Everything posted by mcp

  1. *sigh* That would be Electro "Magnetic" Force Yes, there is a chemical reaction at the electrodes isn't there? It does not describe voltage, voltage only describes its potential.
  2. Wheels no and sorry, I do not want to disrespect you as you are very knowledgeable in so many technical areas and have taught me tons about repairs and other little golden musings while reading your posts on this website......but without being a load the battery can not be charged. Also, because a battery heats and gases, this proves the battery is a resistive load to the charger. Ohms law applies to every circuit..always. Multistage chargers are made out to be super technical devices and they really are not. Some of them that are running FPGA's [Field programmable gate array's - for I
  3. Easy. Batteries resistance [at its current state of charge - this changes as it charges] / voltage = Current. I = R/V is ohms law and this is a prefect example of how it works. A battery changer can not rewrite the laws of physics. I am very aware of how these chargers work but they are mostly a triumph of marketing over technology.
  4. The batteries resistance dictates charge acceptance and ohms law would cause a higher current if available to be the primary source. You could easily combine multiple different output voltages into a single static output voltage using buck boost regulators and feed the single regulated voltage to a single Mttp controller that could handle the combined amperage. I would exclude a wind generator from this though.
  5. Is Black Panther going to be entering in some rum races?
  6. Regional council have no jurisdiction over commercial marine activities. So can only pick on recreational water users.
  7. Probably not until there is a well written email/letter to someone in the media, that picks up the story and runs with it. A half decent journalist will rip their reasoning apart with simple questioning. Is there a wordsmith/spin doctor in the forum with contacts?
  8. I find it very hard to fault this post. So.... +1
  9. With your IT background, If you can do coding you will find work easily without a base.
  10. mcp

    House Battery Issue

    Fish. If you have a digital Multimeter? Disconnect the batteries from all wiring and let them rest for a while to settle their voltages. Then measure the resistance across the - & + of each battery. If one has a largely higher internal resistance to the other [being the same brand and age] I would say there would be an internal fault and the higher resistance is causing the heating of a few cells. Please ignore if this has already been suggested.
  11. Do you guys have some pictures of the product and how it goes through the life lines? I'm just about to do this myself and am undecided about sticking with stainless or going synthetic.
  12. What are some good or essential Cruising guides for New Zealand?
  13. Interesting, I have never heard of them before.
  14. The firefly lead foam [as they term it] are really unique in the consumer available batteries with the lead carbon chemistry, as they are a drop in replacement for most lead acid/agm legacy charging equipment. Most other available Lead carbon batteries require lower absorption and float voltages. IF and only IF, your charging equipment is as adjustable as Victron Mppt Smart solar charge controllers [i am only familiar with what I have], there are other lead carbon batteries available on the market that are as good and in some cases better. If you have to overhaul your entire chargi
  15. Hard wire the fridge to 12v. Protect the circuit with a breaker or fuse. Then get a charger for when you are at dock to keep the battery charged. And now for my sales pitch. I have a very high quality and very very high output Victron Centaur 12v 80amp marine charger that I am about to sell if you are interested. Send me a message if you like, I will post this on the classifieds shortly and then trade me.
  16. I'm not actually sure if I want wired or not to be honest. I'm comfortable with either. Is wireless bluetooth, Wifi or 433mhz? Using Ethernet for the radar is fine, what are the differences between 4g and 3g? Huge long range doesn't really matter as much as detail, being able to track targets/weather cells and I like the idea of close range detail as well if that is even a thing? I did read in a forum that modern broadband radar can detect a whale sleeping/snoozing on the surface? I might be keen to come and have a look at IT some time and see how you have set things up and get some
  17. I'm going to us Opencpn with a windows based PC and maybe experiment with a Raspberry Pi. I will interface with a Vesper marine AIS or Digital Yacht AIS. So a single NMEA2000 backbone for every sensor except radar would be best and I'm just trying to suss everything out before I work on a budget. What wind sensors are NMEA2000? Also patiently waiting for a Vesper Marine class B+ AIS to be released.
  18. I'm looking for speed/depth and wind senor/s that will plug straight into NMEA 2000 network. I don't want to use propitiatory formats if I can help it. I will be running a based PC system. Has anyone else researched the options? Do any of the main brands have a straight NMEA 2000 connection?
  19. I reckon its a forum setting that is only available for certain users. Do you have a test account you can log on to in on your browsers incognito mode to fault find?
  20. Can't see it using firefox either...
  21. I can't see that no matter what on chrome browser or on android phone.
  22. Where is the report button? Is it the red ↓ arrow ?
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