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I have two BlueSolar 100/50 MPPT charge controllers, each one of them fed by two 330W/48V PV panels in series, that I want to connect to two 12V/ 190AH AGM batteries. One of the charge controllers has a bluetooth dongle. How can I synchronize them to maximize charging? Do I need another bluetooth dongle? Will that allow them to behave as the SmartSolar MPPTs do?
Yes you would need another bluetooth dongle and a smart battery sense. I dont think it will work as you are wanting it to though there are limitations with the ve direct bluetooth.
https://www.victronenergy.com/media/pg/VE.Smart_Networking/en/ve-smart-product-compatibility.html
Do you really need synchronisation?
I have 2x Victron 50A MPPT solar controllers, a Victron IP22 30A battery charger and an alternator outputting c80A all quite happily either individually or combined charging our 300Ah LiFePO4 battery.
No "synchronisation" involved.
Each charging source is set to similar parameters. They all end charging at different times but within a minute or so of each other.
+ or - an Ah or so is irrelevant.
When the battery is full they simply maintain any load output.
The battery has now survived 7 years of 24/7 use.
This is great, thanks. I have read that having the connections to the battery bank of both MPPTs (e.g. to a busbar and then to the batts) helps in having them working closely. Do you have that kind of cable arrangement?
Regarding the parameters, max current output of each MPPT should be set to half the charging current you want for the battery bank, right?
