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

[joepr]

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]

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)?

Which kind of bms would be able to send the on off signal ?
Larry

[joepr]

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]

My Jakiper batteries have external contacts for alarm circuit that would probably do that. I need to test it sometime though.
Larry