Changes to optimize Hawke's Bay for use with lithium.

Started by joepr, August 03, 2023, 02:29:18 PM

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joepr

August 03, 2023, 02:29:18 PM
Any chance of making one of the Hawke's Bay aux port dual purpose (input/output) and adding an on/off input mode. That way it would make easy the integration with an external BMS. Also, one question. I know that the Hawke's Bay can charge lithium batteries. But can it survive being disconnected from the battery while charging at full amps (the BMS disconnect while charging at 120 amps with the pv at 585 vdc)?

ClassicCrazy

#1
August 03, 2023, 04:49:24 PM
Quote from: joepr on August 03, 2023, 02:29:18 PMAny chance of making one of the Hawke's Bay aux port dual purpose (input/output) and adding an on/off input mode. That way it would make easy the integration with an external BMS. Also, one question. I know that the Hawke's Bay can charge lithium batteries. But can it survive being disconnected from the battery while charging at full amps (the BMS disconnect while charging at 120 amps with the pv at 585 vdc)?
Which kind of bms would be able to send the on off signal ?
Larry
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal 24v pack , Outback 3524 inverter
 5s 135w Kyocero , 3s3p 270w Kyocera   Classic 150 ,8s2p  Kyocera 225w to Hawkes Bay Jakiper 48v 20kwh  ,Gobel 16 kwh  lifepo4 Outback VFX 3648  8s2p 380w Rec pv EG4 6000XP

joepr

#2
August 03, 2023, 05:16:06 PM
Mainly the external ones that have relays. Batrium, Orion Bms, etc. But could be done with an All in one BMSs that have uart, rs-485, etc., if using a Raspberry pi or an Arduino. With others, if the board has a disallow charging led, you can tap the led circuit (using a low voltage low current SSR to drive another relay).

ClassicCrazy

#3
August 03, 2023, 06:41:48 PM
My Jakiper batteries have external contacts for alarm circuit that would probably do that. I need to test it sometime though.
Larry
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal 24v pack , Outback 3524 inverter
 5s 135w Kyocero , 3s3p 270w Kyocera   Classic 150 ,8s2p  Kyocera 225w to Hawkes Bay Jakiper 48v 20kwh  ,Gobel 16 kwh  lifepo4 Outback VFX 3648  8s2p 380w Rec pv EG4 6000XP

Decodiver

#4
December 10, 2024, 02:56:29 PM
Hello,

Just wondering if this was ever addressed. I have a Batrium BMS I would like to have control over the Hawke's Bay output (on/off)
Cheers
Paul

ClassicCrazy

#5
December 10, 2024, 04:49:39 PM Last Edit: December 10, 2024, 04:51:44 PM by ClassicCrazy
Quote from: Decodiver on December 10, 2024, 02:56:29 PMHello,

Just wondering if this was ever addressed. I have a Batrium BMS I would like to have control over the Hawke's Bay output (on/off)
Cheers
Paul
It has to be able to output Pylontech protocol to work with the Hawkes Bay closed loop. So that is what you need to find out.
There is another discussion talking about the new firmware update which will make this possible for the pylontech output batteries. There are some bms that use that and others that you can program it to talk pylontech
Larry 
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal 24v pack , Outback 3524 inverter
 5s 135w Kyocero , 3s3p 270w Kyocera   Classic 150 ,8s2p  Kyocera 225w to Hawkes Bay Jakiper 48v 20kwh  ,Gobel 16 kwh  lifepo4 Outback VFX 3648  8s2p 380w Rec pv EG4 6000XP

Decodiver

#6
January 14, 2025, 01:55:55 PM
Does the Hawke's Bay use Pylontech HV or Pylontech LV?

FNG

#7
January 14, 2025, 02:33:10 PM
I have asked, I am guessing LV as I assume the LV is low voltage and HV is high voltage but I could be way off sideways on that
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