Posts made by David

• ABMS to control alternator field with a twist

  As I get closer to wiring this up, I wanted to confirm my understanding on charge control is correct. ABMS is at stock configuration: cell over-voltage switch-off per cell 3.85 V over-vo...

  posted in REC Active BMS

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  David
  10/21/22, 6:27 AM
• ABMS to control alternator field with a twist

  Sometimes the answer is right in front of you and you can\'t see it. From that same forum post: \"Some of the devices are controlled by applying ground so ground is connected to fused input a...

  posted in REC Active BMS

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  David
  10/18/22, 7:11 AM
• ABMS to control alternator field with a twist

  Thanks. 3.6A would be pushing it. Probably better to just use a second relay and avoid blowing that little fuse. The alternator is the only charge source not controlled by the CAN bus so usin...

  posted in REC Active BMS

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  David
  10/17/22, 10:03 AM
• ABMS to control alternator field with a twist

  Thinking about this more. Could I use the CHARGE NO wire to provide field voltage in leu of a second relay? I read in this post https://www.offgridsoftwaresolutions.com/ws500-user-forum/topic...

  posted in REC Active BMS

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  David
  10/17/22, 8:31 AM
• ABMS with Smart Shunt

  For the record, it is possible to drill and tap the back side of a Victron shunt to accept additional leads. cheers

  posted in REC Active BMS

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  David
  10/13/22, 5:33 PM
• ABMS to control alternator field with a twist

  In my setup, I\'m planning to only have a single solenoid and have it for low voltage disconnect (discharge) as all of my charge sources (less the alternator) are Victron and controlled by DVCC. Th...

  posted in REC Active BMS

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  David
  10/13/22, 5:19 PM
• ABMS to control alternator field with a twist

  I have a 140 amp alternator (internal regulator) servicing my house LFP pack that is managed by a REC Active BMS. The engine start battery (AGM) is isolated from the house pack and is charged by...

  posted in REC Active BMS

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  David
  10/9/22, 6:21 AM
• ABMS with Smart Shunt

  Thanks. I didn\'t want to get the data off the network for the reasons you mentioned. I wasn\'t sure if I could just put the sense wires on the big terminals. It makes sense that you could bu...

  posted in REC Active BMS

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  David
  10/6/22, 3:30 PM
• ABMS with Smart Shunt

  Is it possible to have the REC Active BMS make use of a Victron Smart Shunt? The Smart Shunt doesn\'t have any provisions for hooking up additional sense wires (not very smart IMO).  

  posted in REC Active BMS

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  David
  10/6/22, 1:49 PM
• How to manage state of charge while on shore power

  Thanks. I\'ll see if I can break out / export the relevant bits and post them here. Here\'s a screen shot showing basic operations. The Functions not shown sent various alerts to the slack chann...

  posted in REC Active BMS

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  David
  10/4/22, 1:38 PM
• How to manage state of charge while on shore power

  While on shore power, I wrote charge control functions in Node Red on the Cerbo GX. At first I tried keeping it between 30% and 60% but I\'ve found it easiest to charge to 100% and run them down...

  posted in REC Active BMS

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  David
  10/3/22, 7:41 AM