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About Hagu13

  • Birthday March 27

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    Cape Town

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  1. They're about 4 years old. No idea of current rating but they seem fairly capable still.
  2. I've recently replaced my 12v 200AH gel batteries with pylontechs One was bad but the other 3 are still serviceable. I gave one to a family member to run a TV in loadshedding but still have 2 good ones that I'm loathe to just hand in for their scrap value. I don't have any use for them that I can think of. Any suggestions?
  3. Thanks Phil. I usually don't reach 100% in the day but can easily handle all the loads even in poor weather. When it's sunny we do extra loads in the washer and pump water to keep the panels running at max to get the maximum "free" energy, or cook with the oven rather than gas. The batteries run the house to 5am in a best case scenario but more usually around 3am. I never charge from the grid. In Cape Town we do 2.5 hours of load shedding so a cutoff of around 40% would work for me at those times and only for load shedding in the early hours. This never happens due to grid overload but ca
  4. I'm new to lithiums after recently replacing my lead acids. I have 2 x 3.5kW Pylontechs. I'm looking for the sweet spot where I will get good battery life as well as maximum utilisation of the bank at night. I do understand the technology is new so there's no real data out there. Currently I'm drawing down to 25% before switching to grid, but the Axpert powers itself from the batteries so this causes a further slow drop of a few %. Never goes below 20% which is my personal comfort zone limit. I'll likely modify this strategy for load shedding to leave a little more in should I need t
  5. ok so I have some feedback Yesterday I made the newer battery the master and charged the bank to full. With the old battery at 100% and new battery at 92% the current dropped to zero and there was just the occasional pulse going in. Temperatures went up a little and SOC slowly drifted to 94% on the low one. So similar to before although the 2% drift was new and heartening. Fairly big delta between highest and lowest cells- maybe 0.25v. Powered the system down and took the old battery away. Let the new one drift down a few % and then charged again. Similarly went to 94% and stopped, b
  6. I've tried a few voltages from 52.5 to 53.2. I was initially lower but raised it to try to help it fill up. No effect. Voltage and amps move around for a few minutes after full but then don't change. Same if it's alone. But I've never parked it full and on charger for more than about an hour so I'll try that. I find it odd that it improved from 82 to 99% and then went back to 88. Think I'll hold them overnight tonight instead of cycling them and see what happens
  7. Tried separately, and as master and slave, new one won't go to 100% irrespective of the rest of the system. Initially the new one was made master but I've tried all permutations to try to fix this. I think it's slave at the moment though. I'll revert. Cabling is correct. Batteries in parallel, positive to one, negative to the other. CAN to the Axpert, Console to the Pi for ICC using the official cable. Lights on battery and ICC agree on SOC. Voltages set at 53.2 but only the old battery gets there. New one stops in the mid 51s Will take them to full and hold them to see if
  8. I have 2 US3000s, one 3 weeks old and the other about 2 months. The newer one doesn't charge to 100% at all, whether it's the master or slave or the only battery on the inverter. It just stops at some point. First day it was 82% then slowly crept up to about 90 at about 1-2% per cycle, then at about 3-4% per cycle to a best of 99%. But now it's gone back down to 90% and is fairly stable. It's consistently a similar % below the other one. This not only costs me capacity on top but also prevents me cycling the bank as low as I would like. Is this the normal pattern for batteries finding eac
  9. So further googling has got me strongly considering and east/west only array. Basically just one long toblerone down the middle of the roof Anybody have insight into this? I like the look and the flatter performance curve
  10. Do a bit of Googling on vampire loads, and start switching things off to see where the power is going. Then you can consider automating things to switch off your standby appliances at night
  11. Yet another question from the noob I need to redo and expand my solar panel array. The site is a flat roof with no shading from trees, buildings etc and big enough to avoid the panels shading each other. Target objective is to have as wide as possible PV bell curve rather than a high midday peak. I'll add panels as required to maximise generation. I currently generate enough/too much for about 8 months of the year so I'm happy to lose a little summer performance to gain in winter. Current setup is 6x305W, facing north but angled very low (10 degrees) this was for water pumping i
  12. Thank you wolfandy Seems an odd way of doing things and a bit of an error trap to overdraw the battery at night when it's "not in use" but easy enough to work around now that I'm aware
  13. Just noticed my Axpert/Pylontech/ICC setup is showing a constant drain on the battery/solar of about 60w So overnight the house was on grid. But grid watts was constantly running about 60w lower than load watts, and battery was around -60. SOC degraded overnight so I believe this to be true. Then when the sun came up the loads were still on grid but the panels were bringing SOC up. Again, grid watts was lower than load watts, and PV watts was higher than battery watts, by around the same 60w Have I got something set up wrong, is something defective, or is it just what it is?
  14. I'm running my whole house on a 5kVA hybrid inverter. Also started as a load shedding solution and added solar later. My average usage is just under 500w/h It's waaaaay cheaper to save power than store it. Start by trimming the fat and reducing reliance on electricity. Heat water with solar or gas or a combination. Or just a timer for bang for buck. Cook on gas, and get a stove top kettle Heat the house with gas or wood. All lighting changed to LED Then go smart. Monitor consumption and figure out what is drawing power with no real benefit. Your AV equipment on st
  15. I'm using a Pi to run ICC to monitor my Axpert/Pylon combo In variable weather and grid availability it's sometimes nice to see what's coming to figure out whether to wait out the clouds or get onto the grid while it's there and give the batteries a top up. So I'm looking at something to display behind/alongside the ICC panel on the Pi that's going to show me clouds in semi real time So far I've stumbled on Windy.com and added an auto refresh extension in Chrome. Anything else I should look at?
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