Jump to content

Hubble Lithium AM2 and SunSynk 5.5


JpPaulKruger
 Share

Recommended Posts

Hi guys.

So I recently encountered a issue.  Or at least I hope it’s not a issue.

 

The Cut Out voltage is 42v DC. This communication is received from the bms on the battery.  At a SOC of 67%, the battery voltage only reads 46.14 DC.  I have the discharge set to max of 50% during the night.  But at 50% SOC the battery reads about 44v DC.  Is this  it supposed to be higher?

Do I need to be concerned?  Is this normal?

 

My Father has 3x 3.4kwh PylonTech US3500C batteries on his 8kw Deye inverter.  At a SOC of 47% it reads 49.35v DC.  Only using this as a reference.

41CD69D1-12E3-4061-ACDA-FE34A557B05F.jpeg

Link to comment
Share on other sites

The Pylontech batteries uses LiFePo4 and the Hubble uses Li-NMC cells so you can not compare their voltages. That does seem like really low voltages though. According to this graph the battery should be just about empty at 3 volts per cell .So 15 cells for the hubble x 3 is about 45  volts.. completely discharged. Something does not seem right ..

1: Typical Voltage Profiles of Li-ion cells [8]

Edited by Nexuss
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...