diy solar

diy solar

Search results

  1. H

    Adding 1x 3k Growatt 24V to my existing #1 and #2 Growatt 3000 24V in split phase

    Hey guys, I have a Growatt 3k 48 volts, I'm in the market for another one because the garage got converted to a living space and it has a 2 ton, 240 volts AC inverter unit and I need it to run in case of a power outage. I will need to run this Inverter AC unit 24/7 but the Growatt I have is on...
  2. H

    Turn off AIO. Will solar still charge batteries?

    Mine does. But yeah on a good sunny day it works fine but in low light condition if there is a lot of fluctuation on sunlight the charger turns on, off, so I prefer to charge the batteries during nice days.
  3. H

    For sale, lightly used, great shape, working, no longer needed. RasbPi 4 and accessories.

    Raspberry Pi 4 Model B 2GB RAM, Raspberry Pi 15W USB-C Power Supply US - Black, 3 each Victron Energy VE.Direct to USB Interface, GeeekPi Raspberry Pi 4 Metal Case,Raspberry Pi 4B Case for Raspberry Pi Low-Profile CPU Cooler, GeeekPi Raspberry Pi 4 PWM Fan, Raspberry Pi Low-Profile CPU Cooler...
  4. H

    Connect PSU instead Solar cells to MPPT charge controller

    Makes sense a good power supply will do the job possibly better since you cut loses some. I have a victron 12/24v 30 amps, and an Aims 36-48v 40 amps (got 2 banks36v and 48v) and if there is a need where the sun don't shine good I use them, also during capacity tests, and a few other tasks.
  5. H

    What does a Raspberry Pi + Venus OS do that I can't do with CerboGX?

    While in the Venus OS installed on a Rasp Pi 4b topic, I have one with a flirc case, I'm having issues with the WIFI. The signal strength on the actual Rasp Pi shows 4 lines out of 5, when I get it to connect to my ATT router (15ft. away no walls) the router device list shows the Rasp Pi signal...
  6. H

    Connect PSU instead Solar cells to MPPT charge controller

    Hello, just my 2 cents, a good charge controller will control its voltage output if is a 12v battery set it up for 12v output and it should work just fine. I have ran charge controllers, off solar panels, boost converter, Grid tied inverters, not issues what so ever, but do expect some losses...
  7. H

    victron smart shunt programming

    Hello, sounds like the problem I was having when I first go the batteries, I got 8 X 100Ah series parallel and got refunded for 2 because they were hitting the top before the other 6 even though they were still have the advertised capacity. Your comment says the batteries are in series, on my...
  8. H

    Wifi smart shunt ?

    Thanks for the reply, that's a lot of zeros in that number, what currency is that? The P3+ here runs around the same as the P4 and I understand the P4 is more expandable?
  9. H

    Wifi smart shunt ?

    So I'm debating on getting either a cerbo or a RasPi 4, 4GB or attempting to use a mini PC running Linux image for the cerbo. Can the cerbo OS be run on a mini PC? Will there be any conflicts or issues with the drivers? Is an older full mini PC, used to run it as a video server for my home...
  10. H

    Victron Cerbo-GX 48v System Bulletin

    So I'm debating on getting either a cerbo or a RasPi 4, 4GB or attempting to use a mini PC running Linux image for the cerbo. Can the cerbo os be ran on a mini PC? Will there be any conflicts or issues with the drivers? Is an older full mini PC, used to run it as a video server for my home...
  11. H

    Extremely Noob question about charging time for a single Chins 12V LiFePo battery

    Hello, I got 8 and it takes a while, I started each one in the evening with a 10A charger too, and they were ready in the morning, rinse and repeat, remember that once you get them charged up you must set them up in parallel so that they can passively balance each other, they recommend 12 hours...
  12. H

    GroWatt ShineS Wifi Issue

    My Growatt is not on right now but, it sits approx. 15 feet from the router downstairs and it always shows a strong signal all the signal icon lines are full. I don't know how is your system setup but I don't have anything closer to the Growatt than 9 inches. No cables crossing or drape over...
  13. H

    Change my Mind: Why buy server rack when you get 4x Chins/redodo/amperetime 100 shipped for $500 less?

    I got 8 dumb ones in series parallel at 48v and they stay pretty much balanced, unless there is an issue with them, I had 2 with issues, lower capacity but still had the advertised capacity and got refunded, so no a bad deal. Some manufacturers are better than others. I do a manual balance every...
  14. H

    Growatt system will only charge my lithium 200amh batteries to 27, even though the system is set to charge up to 29.2… any ideas

    Hello, is that the voltage at the battery terminals? I would do a bottom balance to make sure they start with the same charge or as close as possible, check the voltage, and then do a top balance to see if they all hit the same top voltage and check to see if any battery(s) are not within specs...
  15. H

    Change my Mind: Why buy server rack when you get 4x Chins/redodo/amperetime 100 shipped for $500 less?

    Hello, just my 2 cents. I have 8 dumb batteries 2p4s at 48v. No communication with the Growatt. They take more space, and require more cabling joy. So here are some facts to take in consideration. The Growatt and many other AIO inverters don't have a built in shunt, so they can not guesstimate...
  16. H

    Questions About Growatt SPF 3000TL LVM-ES 3KW

    Can anyone comment on how to change the Growatt WIFI data logger server timing, I did it initially when I first got the adapter and everything work fine, the server updates were frequent, not at the setting I used but a lot faster than now. The default preset sets it for 5 minutes intervals, and...
  17. H

    Questions About Growatt SPF 3000TL LVM-ES 3KW

    Thanks for the reply, so I found that setting you mentioned, and is set for 48v which still well below the current voltage, the inverter don't draw that much amperage like for the voltage to go below the cutoff. Which is 46.4v if I recall that correctly. There is no deep sagging of the voltage...
  18. H

    Pre-charge resistor seems crazy

    I didn't see a reply to you comment, I'll jump in here for a bit, just my 2 cents. Every time you disconnect an electronic device, such as an inverter, charger, power supply, that have capacitors in it, yes is a good practice to pre-charge if all possible. In some cases the spark is small so no...
  19. H

    .

    Agree! (y)
  20. H

    .

    Just my 2 cents, I made my own switch, is basic off/on with a resistor in between and is permanently mounted. I turn the switch on leave it on for a maybe 30 seconds then power up the Growatt then turn the pre-charge switch off and keep on trucking. You can add indicators if you prefer that but...
  21. H

    Will this work to charge my Chins 100 amp batteries for first use?

    Hello, so this is what I do, just my way and works for me, you can use basically any AC to DC charger, 12v and to speed things up a little with no less than 10 Amps if you want to keep the cost down. I use the Victron, one output 30 Amps and I configure the bank in parallel, so the charger takes...
  22. H

    Growatt dashboard completely wrong?

    Hello, so here are my 2 cents. I use the dashboard because the screen on these things is so small I can't tell what is going on. I use it just for adjusting the settings, and that was once or twice just to make changes. The dashboard to me is useless, I'm pretty sure a lot of people are having...
  23. H

    Do you have to use an AC input on Growatt system?

    Hola, No AC is required at all unless you need to charge batteries using the AC to DC charger. No load required either, the Growatt will wait patiently for a load to show up. But be aware the standby consumption on any of these all in one units is pretty high. It will deplete your battery if...
  24. H

    Enphase IQ7Plus-72-2-US with Enphase Combiner and Transfer switch

    Hello everyone, since the last post I have added an AIO inverter and a 12kW LiPo4 battery bank, so now I can run a mini split in case of an emergency, I still use the older backup system for lighting and small appliances so is a great combination and for extended power outages performs really...
  25. H

    Growatt 3kW Stackable Off-Grid Inverter | SPF 3000TL LVM-48P

    Is anyone familiar with the setting shown on the attache picture? Just trying to determine what is the purpose. In my case the low voltage shutoff is set to 46.4 AIW the manufacturers recommendation. So if the inverter switches to mains at 48v then it will never get to that point (which is what...
  26. H

    Growatt Spf 5000es refuses to switch on

    Good to know thanks for sharing!
  27. H

    Growatt SPF 5000ES Deep cycle batteries charger glitches when floating at 54 volts- No solar

    Which user mode are you using? Do these batteries have communications?
  28. H

    inverter stops charging batteries at 66%

    The Growatt doesn't have a built in shunt, and can only guesstimate SOC from batteries with communications. I posted several comments in reference to this. This is according to Growatt. The same thing happened to me! My work around is a smart shunt, but you could probably use any shunt gadget...
  29. H

    Growatt - Odd behavior

    I added 2 X 80 or 90 mm computer fans whown in the picture attached with a 12v plugin power supply for computer fans they fit on top each side there are vents make them to exhaust the hot air, I can pull 20-40A all day long and can barely hear the Growatt's fans. Growatt's fans are loud and on...
  30. H

    Help with CT consumption wiring?

    That is the way I did it, it's been over 5 years and still kicking it. My combiner box had punch holes at the bottom, just push them up and BAM!
  31. H

    Chins Smart 12.8V 100Ah drop in

    Understood, and thanks for the comment. The batteries I use are dumb batteries and there is no balancing according to Chins, so is all I got to go by. I know the same balancing cycle occurs within the each battery (4cells) inside but since they are dumb batteries I have to deal with the complete...
  32. H

    Chins Smart 12.8V 100Ah drop in

    Hum, my understanding is that LiPo4 batteries either non smart or smart ones will balance each other if connected in parallel for a certain time, the longer the better, they call it a manual balance. I do this a little faster by charging at low rate, since I have 8 batteries it takes a long time...
  33. H

    Battery capacity tester

    Mine won"t over 6.47A discharge, (at startup) all setup correctly for 20A discharge. Well after some research and reading the manual (poor written) 3 times, seems like the 20A discharge only occurs and it depends on the actual battery voltage, from what I gather is in steps, up to 20A, as...
  34. H

    Growatt SPF 3000TL LVM-48P won't power loads with solar when the battery is full??

    Hello, did you find what was the issue? Will it run the loads from solar when the batteries are full?
Back
Top