diy solar

diy solar

Recent content by Andrewm2002

  1. A

    Battery Protect Not Disconnecting

    48v DC input. Max draw ~2200w Normal draw ~750w. I've only had it working since yesterday so those values may change. I have it on a 63a breaker. The battery protect is measuring closed circuit with power removed so I guess it's dead.
  2. A

    Battery Protect Not Disconnecting

    My Victron battery-protect displays an error (E3) when under-voltage is present but never disconnects the load. I'm assuming at this point that it's damaged, but want to make sure there isn't some programming trick I've missed. I programmed it via the smart app. Anyone had issues with that...
  3. A

    Bought some BIG (280AH) cells on Alibaba

    I bought some Calb branded batteries from Deligreen. I haven't got the chance to test them yet but everything seems legit.
  4. A

    BMS common port vs seperate port

    When you say loads do you also include accessories such as power to my Morningstar GFDI, Battery Capacity Shunt, etc? I had originally planed to run my battery negative lead to a grounded bus bar with the BMS in between them. From the (-) Bus I would have connected the Charger, Shunt, GFDI...
  5. A

    When to bottom balance new cells

    I'll install the system myself. I can claim all the incentives as long as the equipment has the correct certifications and I pull a construction permit. There were no surprise taxes on the batteries. They came express via Fedex. I've read that express shipments seem to get less scrutiny...
  6. A

    When to bottom balance new cells

    Purely off grid. I'll run it as a supplement to the central heating/cooling. Because it can only be operated by solar I should be able to claim full tax credit on the heat pump. I'm in South Carolina, USA.
  7. A

    When to bottom balance new cells

    Which supplier did you order the batteries and A/C from? My batteries are from Changsha Deligreen Power Co., Ltd. and the A/C is from Ningbo Haishu Cooling New Energy Co., Ltd. I couldn't get the official Calb store on Alibaba to reply to me. My system will consist of 6 ground mounted Longi...
  8. A

    When to bottom balance new cells

    Thanks for the replies Will. I guess my concern with BMS is not knowing what I'm getting. I'm looking at a Daly 120A common port on aliexpress. Whatever I add I just want to make sure I'm not adding more risks as it will be mounted inside the house. I will have it all in a electrical...
  9. A

    When to bottom balance new cells

    No BMS. Plan on running between 90-10% and discharging over around 4 hours. In a system with 2kw of panels and a 48vdc mini-split heat pump.
  10. A

    When to bottom balance new cells

    I have 15 Calb CA100 cells coming from China. Should I balance them before use or let them run a conservative charge regime for a while 1st?
Back
Top