Good day,

 

I currently use a Mecer SOL-I-AX-5KP inverter with 4 agm 12v batteries as a backup system.

I’m investigating to replace the batteries with a BSL Battery 51.2V - 135Ah CANBUS (7kWh). 

I’m wondering if communication between the battery bms and inverter will be possible (using the inverter ‘PyL’ option on battery type), or should I select the ‘USE’ battery type on the inverter and define the specs according to battery requirements. 
 

Or is there a better option for a lithium battery to go with the inverter?

Any advice will be greatly appreciated!

Willie

 

 

1 hour ago, Willie Strijdom said:

I’m wondering if communication between the battery bms and inverter will be possible (using the inverter ‘PyL’ option on battery type),

Presumably, your inverter's firmware won't have the PyL option, nor does it have a removable display with a battery BMS RS-485/CAN port.

You can however use a Raspberry Pi with suitable cable and monitoring software to talk to the battery BMS, if the monitoring software supports your proposed battery type.

It's quite possible to use a lithium battery with battery type USE and no cable, you just miss out on some safeguards.

Thank you Coulomb. 

You could also use a Solar MD battery with their V2 Logger. The logger will interface with the inverter via RS232 & with the battery via CAN bus.

On 2022/12/12 at 12:36 AM, Coulomb said:

Presumably, your inverter's firmware won't have the PyL option, nor does it have a removable display with a battery BMS RS-485/CAN port.

@WillieS, I Just happened across my reply from over a week ago. I don't know what I was thinking, Kings DO have a removable display, with BMS RS-485/CAN port, so it should have the PyL battery type option.

My apologies for any confusion.

Edited December 25, 20222 yr by Coulomb