This is my first post so, forgive me if I am not as clear as I could be.!
I am installing in my boat, 2 new 300 ah NG lithium batteries and with that, a Lynx Class T Power In, a 1000amp NG BMS, a Distriutor, etc, etc…
I have dual Balmar alternators and a Balmar 618 regulator.
I wish to use the full output of the alternators to charge the NG batteries. I understand the Balmar regulator needs to sense the voltage on the regulator side of the fuse between the alternators and the distributor.
How should I set the BMS so that when the batteries are full it does not shuts off the regulator…? that is a bit confusing to me.
There are some connections in the BMS that I need to use but I read some conflicting information regarding which one to use…
Any help clarifying this situation is most appreciated
I suggest you look at some of the info on setting up the Wakespeed WS500 alternator regulator in the Lynx BMS documentation. I do not know the Balmar 618, I have the WS500 with Lynx NG BMS. The key is to set up the relay and ATC to shut down the alternators BEFORE the BMS contactor opens in a safety issue. On the WS500 this is done via a feature in wire, on the Bslmsr you may need to use the ignition wire.
In normal operation , the Balmar does not get charging directions from the BMS do its only works using it’s own charge profile, so you need to set this up with similar voltages and end of absorption as the BMS, 14.0V absorption 23.5V float with 4% tail current as end of absorption. When the batteries are full, the Balmar will go to float when it is ready independent of the BMS.
doing a similar setup right at the moment, make sure the current is set to max of 0.5 charge rate and of course you have lithium settings it is critical that you have the BMS ATC and alarm relay to have the ability to shutdown the Balmars (ign input to REG 618off via a relay) if the bms shutdown with uncontrolled charging from the alternators you system is toast if the Alternators are not controlled, will fry your electronics.
even thru you can use the MC618 Reg i personally think the best way to go for Lithium is to use a after market setup like Wakespeed or Arco Zeus with big upside is that these units are Canbus connected and become part of DVCC ie presuming all is Victron inv/chq, solar controllers, canbus alt controller are all controlled as a system plus with the alarm input from the BMS to command the alt’s to shutdown it is bullet proof.
Thank you. So you are doing a similar setup but with the Balmar M618 or are you going to use the Wakespeed? .. I am considering the WS500 to make life a bit easier. I am not charging the engine batteries with the alternators at all. I plan to use an Orion xs 50 with a battery protect unit to charge the engine batteries…also, another Orion XS 50 to charge the windlass battery. The altenators and solar (2000 watt using 3 MPPTs) is to charge the NG batteries…
I did not mean replace the Balmar regulator but use the WS500 information as guidance. However, the WS500 (or Arco Zeus) integrate fully with the Lynx NG BMS, the BMS controls the alternator charging through the Cerbo / Ekrano. I have 2 x 300Ah NG batteries, Class T fuses, 500A Lynx NG BMS, Lynx distributor, WS500, SmartSolar, Multiplus and Cerbo and the systemworks well. I have a second small alternator charging the lead acid engine and bow thruster batteries.
So…since you did what I am about to do, I got to think that the reason to want to use the full output of both alternators to charge my battery bank is because in the past I had 880 ah of AGMs and 1 alternator was not doing the job properly but now I have 2000watt of solar and only 600ah of NG lithium so…maybe I just use 1 alternator to charge the NG bank and the other dual output to charge the engine battery and the windlass since it has dual output… so…that means I could continue to use the Balmar to charge the AGM batteries and get the WS500 to control the other alternator… I know its a bit pricey but I think in the end I will not worry too much about burning my alternator… anyway, your responses are helping me quite a bit!! thank you …I may ask more questions as I start the install…
Use Wakespeed for peace of mind it reacts to DVCC commands, I am sticking to MC618 but have run a network cable for a up grade later, if paranoid fit a soildswitch 104 controlled by the BMS that will cut ignition input to wakespeed.