Jump to content


  • Posts

  • Joined

  • Last visited

1 Follower

About Gerlach

  • Birthday 05/06/1984

Profile Information

  • Gender
  • Location
    Sonkring/Protea Hoogte, Kaap Stad
  • Interests
    MLT Powerstar 8.0H "connect to the net with Bridge MLT software" 
    2 x Microcare 60A MPPT
    DIY Lifepo4 Battery setup. 7.2kwh x 2 units with Bluetooth BMS
    2970w solar array "planning to add more"

Recent Profile Visitors

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

Gerlach's Achievements

  1. Jip a nother set is coming in between the bus bars and the 2 Multi II 5kw inverters. Work in progress. I help him out with the battery build quickly because I got my hands full in my side building my own setup at my house to.
  2. Friend of mine setup that we are busy with with 280ah grade A match sells and JBD bms's.
  3. If you guys are looking for 280ah lifpo4 sells and JBD bms, I got someone that imports local. Jaco is importing direct from the manufacturer. 2nd shipment is on it's way. There is already a bunch of this bms floating around in SA that he have imported and sells.
  4. @Gnome thanks for the feedback. I waiting for your feedback in the few weeks when you got your setup up and running. Ooooooo yes. Just to add, I got a 35kwh lifepo4 diy storage storage and in the diy lifepo4 game more then 3 years, so I know my way arround the stuff and how it work. Watching videos and playing with the real stuff is two different games Enjoy the adventure.
  5. @Gnome quick question, on what brand inverter/mppts are you planning to run the bms? I got 4 it's way with someone shipping order that order more and lifepo4 batteries. I had one on a test setup, they work really nice, but when the contactor opens because the safery, say a sell hits the 3.65v, it can cose a bit of a problem. Louis written a script so that it can work witj Victron equipment.
  6. @NoordSolar i will drop you a PM. I see you in Cape town side. I got someone that importing 280ah Grade A cells that is matching and comes with test report.
  7. Then you need to check with n multi meter on that sells to see if they not under charge. It can happend if you got sells that was standing for a while and they lost a bit off power in them. So far no problems. I only got one that sontimes drop a bit. Then i top that sell up with a lifepo4 charger juat to get it back to it's normal level.
  8. @Powerforum Store any good/special prices on 330w pannels?
  9. Draw.io I used it for mine. Takes a bit of time to catch how it works but after that it works super nice.
  10. The bmv is design actually to be use with lead acid based batteries by using the Peukert's law to work the state of charge of battery and discharge. With the lithium and lifepo4s busy taking over the market slowly, Peukert's law don't really work with them. A bms is Battery Management System that actually keeps a eye on every sell in you lithium / Lifep4 setup and works out the stage of charge and deside if it needs to shift volts over to other cells "active ballancing" or if there cell run away that it stop the sell from run away by stopping the charge toe the batteries and start moving the extra of the over charge cell to the other cells. Now if you bms got comms, it will inform the inverter to say to it "Hi , stop charging, we got some problems that we need to sort out, we will inform you to start charge again" . So the inverter will wait for the responds back. Now some bms don't have comms so the guys use bmv to help with charging and discharging info. There is fine line of working this out with the guessing game of the Peukert's law. We use between 1.00 and 1.05 for this in lithiums.
  11. If planning to 10kw, then look at the new design MLT powerstar. There is plans of it be in the CoCT new list. Just need to dubble check with @Stanley
  12. Yes, my MLT gives that info and they really close. I use say about 98% the shelly EM info if i need to check. My day to day use lines up with my PV kwh and Battery kwh use. Best is to check here : https://shop.shelly.cloud/shelly-em-50a-clamp-wifi-smart-home-automation-1#139 The SA one you mail got a bit of story behind them, you can check on mybroadband. I see takealot stocks the Shelly 2.5 but it's way over price. You can import 2 for that price. SHELLY EU got n fix rate of €35 with DHL and then you stack the box full of shelly stuff. Maybe check on the forum if some poeple want and do a batch order then. So far I'm happy with mine and Energy and the other person that i imported with.
  13. I'm running mine in my inverter DB that supply the house. It uses the L and N from your supply to give it power, so it keeps eye on AC volts and Power Factor. Clamp 1 I'm running in Main AC Breaker to my change over switches and Clamp 2 I'm running on my geyser to keep a eye there. I got my geyser interlock between eskom and the inverter so dump all my extra solar to the geyser then. What nice about the shelly EM is, it's got n relay/contactor control so jy kan switch stuff on via the Shelly EM. In the settings you can adjust so if you got n load on clamp one of say 3000w, and your inverter can only supply say 5000w, and a load of 3000w on clamp 2 starts up, then it will switch off the load on clamp 1 via the relay control and only switch on the load if the load on clamp 2 is gone again.
  14. @Energy mine was in the same DHL box in lockdown with yours
  • Create New...