Jump to content

Analytical

Members
  • Posts

    35
  • Joined

  • Last visited

  • Days Won

    3

Analytical last won the day on April 28 2022

Analytical had the most liked content!

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

Analytical's Achievements

  1. Lithium battery option on Sunsynk 8kW.
  2. Just to add a bit of my experience here. My batteries were losing capacity like crazy. I ended up at 174Ah for three batteries according to Solar Assistant. Hubble support asked me to send the batteries in so they can troubleshoot, but I was reluctant to take the system apart and be without my batteries so procrastinated for 3 months. I was convinced it was firmware, as the cell voltages were all very close and didn't indicate bad cells. Last week I saw Guthrum and werner.potgieter had success with with getting the firmware from Hubble, and they were kind enough to share with me. I have the RS232 cable as I run Solar Assistant and uploaded the firmware a week ago, and my capacity is now sitting at 315Ah (315 x 50 = 15.75kWh). Checking the logs and I can see that I get about 12.5kWh from my batteries each night at a DoD of 20%, so I am much happier with my setup now. My remaining issue now is that the batteries' cycle count is still increasing too quickly. About 2 per day, where I definitely do not charge and discharge that much. I hope the cycle count is not used for warranty purposes as the batteries are burning through the cycles.
  3. Thanks, yes I have a cable to the batteries as well. It was useful as SA showed me that my battery capacity is below what it should be. It dropped to 248Ah now. I discussed with Hubble and will be sending the batteries to them to test.
  4. Another thing to try is to switch off the main battery with the switch at the bottom and on again. Mine stopped at 95% this afternoon and once I power cycled the main battery it started charging again.
  5. My previous Pylontech US3000 calculated a cycle as full discharge and back up to full again as one cycle. For example I set the minimum SOC at 25% which was not always reached each day, and after a year it showed just over 200 cycles. I recently had 3 Hubble AM-2's installed on 21 Dec 2021, and they are currently showing 57 cycles after 28 days and minimum SOC of 20%, which equates to two cycles a day, which doesn't make sense. I sent Hubble Support a mail and can advise later what they replied.
  6. Hi @StickeyTape I see you use similar hardware to me as well as Solar Assistant. Can you please check what Solar Assistant shows as your battery capacity and cycles on the Hubbles? My capacity for 3 batteries shows as 261Ah and my cycles are also clocking up very fast. The one pasted below shows 57 cycles, but I've only had the batteries for 28 days and definitively don't cycle them twice a day. Thanks.
  7. Hi. Just wanted to give some feedback from my side as I found this thread useful. My Pylontech to ICC cable made by Diversified Solutions stopped working properly a while ago. ICC could read the values for a while, but then I guess it would timeout and stop updating. I didnt want to spend hundreds of rands again for a new cable, especially if I wasnt sure if it was indeed the cable, so I delayed. Eventually last week I searched and found a Prolific chip USB to TTL adapter as mentioned here at DIYelectronics and bought it. R29.95 well spent! My cable is now working again, though I have to tidy up the soldering work as this adapter has pins already soldered in, and need to make it look neat. Thanks to all.
  8. I'm also keen on getting the 8kW Sunsynk when I move into my new house.
  9. Contact livecopper.co.za via email. They sourced all the Hager stuff I originally wanted from EM, and made it much easier, and also slightly cheaper. It took about a day or two longer for them to source the units first.
  10. Hi Just to add, after reading most of the threads, here i decided to tie the output neutral and earth together after testing with a short wire, and all looks fine. My issue was that the earth leakage tripped whenever the grid was restored, and this fixed the nuisance tripping when grid restores. I've tested the earth leakages after the inverter (by pressing the test button) and they seem to work, so pretty happy with the result. My other thought was to use a contactor, but since the Infini 3KW does not have a relay for this, I couldnt think what contactor to use, as the inverter engages the grid only a few seconds after the grid comes on, so a contactor would disengage too quickly.
  11. It is very impressive to see what you have achieved. I also have some fibaro switches in the house (10 light switches and three plugs), but running it on the Vera Plus controller. It is impressive to see what can be done with HC2, and the interface looks so good. Thanks for the posts and updates. It is very interesting to read and see the pictures as well. Thanks!
  12. Hi Here is a previous response I provided on the load on my 3KW Infini: https://powerforum.co.za/topic/2858-reverse-power-flow-blocking-protection/?tab=comments#comment-44961 I currently have my whole house connected except for geyser. The largest load on it is the oven, which is 4 KW, which it can sustain whilst the oven heats up, which is around 15 min. The total loan regularly peaks at 5KW with the oven, with the highest recorded being 7KW for a short period of time. I dont think there is much of a benefit keeping this on the inverter, so will split it out with the geyser, but the live wire is too short at the moment to reach the top rail at the moment. Dishwasher, washing machine and aircon will remain on the inverter, but I will put these on a contactor as the load capability is much lower without the grid present (trips when the lawnmower tries to start when no grid present). I havent seen smoke yet, but have seen it trip with overload, so seems safe. The manual says to connect the AC Input to a 30A circuit breaker. I have a 32A one, both on in and out. @Mark I'm keen to hear about the frequency change being mentioned below please. Hope it helps.
  13. I would guess it is the second life batteries discussed in multiple threads. Here is one: https://powerforum.co.za/topic/2568-byd-10kwh-lithium-48v-quote/ They dont mention a brand in their their ad which would be consistent with the second life batteries I think, as the original manufacturer doesn't support this.
  14. Hi @PlanB Here is a thread I started when I installed my Infinisolar which highlights some of the questions I had when starting off with it and some answers. Infinisolar install Here is also a thread where I provided some feedback later. Comment I'm very happy with the Infini considering how much it cost, and with ICC running on Pi it give me most functions of much more expensive inverters. I now also have it running with a Pylontech battery and very happy, using for backup and cycling it in the early hours of the morning. When I bought my inverter I bought two as my neighbour was also interested, but then changed his mind, so I kept the second one as backup "in case", but it has run very well for the past 15 months with absolutely no issues, so will probably look to sell the second unopened one. There is a lot of valuable information on the forum and most of what I learned came from here. If there are specific Infini questions about running it in Off-grid mode I'll try to answer. Good luck!
  15. Hi I have the same inverter, and also running it in off-grid plus backup. I have recently connected the AC out of the inverter into my main DB and it is working very well. As long as there is grid power the inverter can sustain much higher loads than 3KW for short periods of time. I removed the geyser from the inverter circuits, but the oven is still on the inverter since the wire in the DB is too short to reach the top rail next to the geyser circuit breaker. When the oven is on the inverter supplies between 4 and 5KW, and continues to do so until the oven reaches temperature. The screen shows overload but the alarm does not sound yet, as it takes the oven about 10-15 minutes to reach temp. The intention is to remove the oven soon, as there is no benefit keeping it on the inverter. i think/know that the gardener also plugs the lawnmower into the inverter supplied sockets, and the inverter can supply the high initial load, but only when grid is available. I will also put the Aircon, washing machine and dishwasher on a contractor soon so that these are disconnected in case of power failure and running on batteries. I had the same questions as you and eventually figured it out by trial, and must say I am very impressed with this inverter considering the price paid, especially with the added functionality of ICC. Also to note, I’m on prepaid and can’t risk feeding back into the grid, but using it in off grid mode is working really well. Hope this helps a bit.
×
×
  • Create New...