Victron Energy GlobalLink 520

nyoffgrid

Hey all,

I currently have a Chinese inverter.. I will be replacing it with a victron PMP242305132.

If I buy the Victron Energy GlobalLink 520 then will I be able to remotely switch on the inverter? I guess the way it will work is for me to access it via the app and then switch on inverter? 

It has data for 5 years.. then what? how much does it cost to renew? 

Any idea how much power it draws? 

I do not have solar panels in my cabin (too wooded and makes no sense.. believe me). I have one(1) 24V 200ah lifepo4 battery which I use during the day to power cabin and then I charge it at night with genset. I usually leave the cabin when it is 90-95% charged...

I am assuming that the draw on this globallink is so slim that it should be fine even if I don't stop by for 2 months? 

BB.

The spec sheet:

https://www.victronenergy.com/upload/documents/Datasheet-GlobalLink-520-EN.pdf


Making a guess that you could use the relay to turn the inverter on and off... And the "OFF" state is relay "Open", the average power would be:

48 volts * 0.014 Amps (BT On) = 0.672 Watts w/ relay off
48 volts * 0.005 Amps (BT Off) = 0.24 Watts w/ relay off

Or, we can work in Amp*Hours... Say worst case you are there 3 months of the year, and no Genset for 9 months of the year (worst case with relay "OFF"). Then the AH usage with BT on (if you have BT on when gone) would be:

0.014 Amps (48 volts BT on) * 9 months * 30 days per month * 24 hours per day = 90.72 AH of draw

Or about (91 AH / 200 AH battery) = 0.455 ~ 46% of bank capacity
If starting at 90% Soc (putting cabin to bed) - 46% usage = 34% left after 9 months.

Of course, if you are using the Cell feature, and no BT when when gone, usage would be almost 1/3rd of that...

Suggest to not discharge bank below 20% unless needed... LiFePO4 with BMS (battery monitoring system), you should be able to go down to 0% SoC, and an Active BMS would turn off battery to protect against over discharge....

-Bill