lynx shunt

Hello,

Hoping I can get some help here, I am installing 2 new Multiplus-II in parallel system and all seems to be working well except i get all LED lights as red on the lynx distributor when I have AC power on and the inverters are charging. I have tested all the new fuses just via continuity test and the batteries are getting charged.

The even stranger thing is this: When I put the 120x2 3000 12v 50a Multiplus in standalone operation, they light will be green, then turn red after a period of time, then green again, but as soon as I put them in parallel and they are both charging the batteries from AC power, the led's on the lynx distributor stay red.... I have the battery protect connected to one slot on the lynx, 2 inverters (multiplus-II) each in its own slot, and the final slot is taken up by my BIM to chassis battery/alternator. The batteries are connected to the Lynx shunt via the end posts (where most people would connect the lynx power in). All the components have shutoff switches in between them.

Any help in understanding the Red LED's when under load would be greatly appreciated. As soon as I turn off the load the led's go off, and only the one green in the center of the distributor is lit. The lynx shunt stays green in any scenario.

Update - Even in standalone when the lynx distributor is under load the lights turn red. I have taken everything back apart and verified every connection but no matter what, under load, I get red lights on the lynx distributor. @Guy Stewart (Victron Community Manager) - Either load from chargers or load from the coach, ie when I turn on a microwave and a heater, it happens every time. I have ordered another lynx distributor to see if maybe it is a hardware board fault? I can't think of anything else it would be... Thanks for any advice in advance.

I have raised this with my retailer (CR for multiplus, and another company for the lynx) and they stated they would open a ticket with Victron, but have heard anything. I think this is an odd one, but maybe Victron staff have ran across this before?

Hi,

what are the benefits of Lynx Shunt compared to Smart Shunt? It has a nice box that integrates nicely with Lynx Power-In, but is that all?

It costs 2.6x more than Smart Shunt.

Smart Shunt datasheet says current draw < 1 mA ~ < 1Ah/month, Lynx Shunt says 20mA @ 48V ~ 14 Ah/month. That's huge difference.

Smart Shunt says resolution and accuracy 0.01A +- 0.4 %, Lynx Shunt's datasheet does not mention those.

Is there any reason to buy Lynx Shunt over Smart Shunt except integration with other Lynx boxes?

I keep getting a few over volt alarms during aborbsion. I’ve a multiplus and lynx system with cerbo GX. I’ve 330Ah of AGM lead acid batterie. I‘ve set the charge voltage limit in the DVCC menu at 14.8V and checked the multiplus settings and they are factory (14.4 absorption). The charge voltage goes up to 15V for short periods during absorption. It cycles around 14.6 - 15.0V.

1. Any idea why this might be? Will it be damaging my batteries?
2. Any tips on how to stop it happening?

I know the bank is smaller than that recommended for the 12/3000/230 but I’m saving up for Lithium…

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Thanks in advance…

I have a Lynx distributor. I feed it with 5V with the RJ connector. For several months the LEDs were working properly (green). But for days I have had an error and I have not changed anything (except some firmware of the MPPT, battery protect), the fuses are good but they have lit red. I have done all kinds of tests, I have disconnected all the systems, but I cannot find where the problem is. I have replaced the 24v battery with a 12v one (isolated, without Cerbo, MPPT, Multi) to test and it works, the led turns green. But when I install the 24V battery, all the LEDs light up red.

After several days of testing I have updated the firmware of the Cerbo and Multiplus and now the LEDs light up orange. Does anyone know what is going on? Can I update the firmware at the distributor?

Thanks

Is it possible to monitor lynx distributor (fuses status,etc) without lynx BMS but with a Lynx Shunt connected?

i will have lithium batteries with integrated bms and i will not need a Lynx BMS but i will iconnect the battery bank (pylontech batteries bank) to the Lynx Shunt directly. I see that Lynx Shunt connect with GX device via Ve.can but i doubt if lynx shunt send lynx distributor status to gx device too.

Thanks

Hello,

I have a Lynx Shunt VE.Can that will not show up on my Cerbo GX as a VE.Can device. Other VE.Can devices will show up, but I have disconnected them for troubleshooting the shunt. I have a Cat6 UTP RJ45 cable connected directly between the VE.Can ports on the shunt and the Cerbo, with a blue terminator plug on both ends. The shunt's LED is green and current is flowing. RJ11 cables are connected to Lynx Distributers left (batteries) and right (loads) of the shunt. The VE.Can port status page from the Cerbo interface is attached.

Please let me know any suggestions or additional info needed.

Thank you!

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I’m using a lynx shunt, power-in and distribution panel. I’ve a balmar alternator with MC-618 regulator. If I follow the balmar instructions I connect the alternator power out directly to the house bank positive. How will this current flow, with the alternator on register with the cerbo GX ? I guess it will totally mess up the battery discharge calculation. If I wire the alternator into the distribution side there are significant issues in the battery’s disconnect with the alternator still charging?

Hi there, very first question out here, hoping someone can help...

We are planning to use one lynx distributor (probably with a smart shunt), but are wondering if that's possible with our intended setup? - see below questions for intended setup

My questions are:

1. can I connect the 2 MPPT controllers to the one fuse holder on the lynx distributor? if that's possible, do they need to be identical in size?
   
2. can I do the same for the DC DC chargers? Connect 2 of them to the one fuse holder in the lynx distributor? If that's possible, do they need to be identical in size?

As far as I can tell we need to connect the battery (single victron 330A lithium battery) to the left-hand side of the lynx distributor. Then we would connect the following to the 4 fuse spots:

• MPPT smart solar charge controller (for our 2 solar panels in series on the roof)
• MPPT smart solar charge controller (for our solar blanket that we intend to setup when we are parked in the shade, but can have access to the sun a few metres from the vehicle)
• Orion TR smart DC-DC charger - we are thinking of adding a second DC-DC charger as our car has a 150A alternator and we will drive most days a few hours and therefore will be charging the bulk hopefully with the alternator
• IP22 blue smart charger - we will be mostly off-grid but when we park up at a friend's place we could use this to charge the batteries via shore power without having to put in a permanent connection on the outside of the car.
• Phoenix inverter - will be used to charge our laptops at night if needed, as well as charging our headlamp batteries etc

Now, as you can see we have 5 things that I believe need to be connected to the lynx distribution module. Potentially 6 if you count the additional DC DC charger we would like to add.

I also haven't looked yet how / where the switch board we intend to add for all our 12V loads needs to be in the wiring diagram, does this need to go into a slot on the lynx distributor too? ( we won't have any 230V loads as we will plug our laptops directly into the inverter and don't have any other appliances that run on 230V)

We also intend to add a Cerbo GX with GX Touch 50. I haven't looked at how to add that to the system, but assume it doesn't need to be in the lynx distributor....

We are building a small campervan with not too much electrical needs, but we like to be able to stay off-grid for extended periods, including parking her up and going away for a week-long hike (hence the chunky battery). We are very limited in space (and weight) so would prefer not to have to add a second lynx distributor if we can avoid it :-)

(oh and sorry admins, I selected the topic 'lynx shunt' as there is nothing suitable to select as lynx or lynx distributor, don't seem to exist as a topic....)

Hi all,

According to what I've read in the manual for the Lynx Distributor, it is not possible to get blown fuse information across VE.CAN unless there is a BMS in the system; i.e. a Distributor + a Lynx Shunt will not produce the required messaging to the GX interface panel. Is this really correct? What a huge missed opportunity if so.

Thanks

Chris

I attempted to connect a 4/0 copper cable 5/16 hole lug from the Multiplus to the Distributor, but lug seems to be too large to fit into the opening for the negative bus bar on the Distributor. Can someone recommend a lug that will fit?

Thanks

I am planning a setup to use a Lynx Distributor for batter input, then Lynx Shunt, and another Lynx Distributor to the loads. Management will be a Cerbo.

Question: In such a configuration what are people doing for emergency battery disconnect switching?

Hi, I'm installing pylontech batteries and ccgx color control.

Multiplus 2. 48/5000...

I have a lynx shunt, is that still worth installing and interfacing with the ccgx ? Will that clash with the pylontech bms?

Or just stick with the pyramid bms....

Thanks for any advice.... Dave...

Hello,

I have an easysolar system setup within a Narrow boat, 24/3000/70-50, connected to a Lynx Shunt and 6 x 60 Amp Ultramax LiFePO4 batteries. The issue I am having is that the batteries have twice dropped to below 24v, but the system is showing over 50% battery still, both the multiplus and lynx shunt. Edit after response below, the batteries are 24v 60Amp each, so 360Amp total, specification below.

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I was under the impression that using the Lynx Shunt, and Lithum batteries, that the battery percentage would be a lot more reliable, so does anyone have any ideas what I have configured incorrectly here? Charging from 21V yesterday took around 6 hours at 60 amps average, so it seems that it is charging the correct amount, obviously the percentage reach 100% way before the charging was finished.

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This is the history from the VRM for the shunt.

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This is the voltage for the month,

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And the history for the system.

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I have shared the VRM access, see https://vrm.victronenergy.com/installation/72949/share/b091acc2

Many thanks in advance for any assistance here.

Simon

I have a Lynx 1000 distributor and I’m wondering if I can power it via rj-9 or 10 or 11 cable from a Victron 500a/50 mV BMV shunt I have.

this is the shunt:

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Pretty sure the answer is no but any input appreciated.

200amph of 24v Lipo batteries with integrated BMS wired in parallel. Max potential load something like 120 amps. Plan to connect directly to busbars of Shunt VE.Can connected to Lynx Distributor.

The Shunt VE.can manual states

"If the Lynx module is the first in line, the last in line or is used by itself, it is possible to connect batteries, loads or chargers directly to these connections. However, we do not generally recommend this because additional insulation and fusing is needed. "

Sounds like a battery terminal fuse is a great idea. Not sure what they mean by additional insulation.

Thanks

Tried to download the manual for the Lynx Distributor, to ascertain if this protect has any ratings suitable for marine environments, only to experience a browser crash. Does this product have any certifications such as:
-ISO 8846 ignition protection, and SAE J1171 external ignition protection requirements.

-Test standards include SAE J1171, External Ignition Protection of Marine Electrical Devices and UL 1500 , Ignition Protection test for Marine Products, and USCG electrical system requirements in Title 33 CFR 183.410(a).

Looking to possibly use this in a Diesel environment.

Thank you.

Have recently replaced a BMV712 with a Lynx shunt.

We run a Cerbo and the 712 was working perfectly. Since installing the Lynx we have lost DC consumption from graph data in VRM, any help appreciated

I left the box, which contains the cable, back at my now rented out townhome in Seattle. Is there any way to have one shipped? Victron doesn't seem to stock them and I can't find one that seems right on amazon.

I had been using the Victron Smart shunt for over 8 months, and have been very very happy with it. I used the VE direct connection to communicate with the rest of the system (MPPTS, Cerbo & Multiplus), and it has worked flawlessly. I recently switched to a Lynx shunt (3 weeks ago), and quite frankly, was very disappointed in its lack of features, considering its a fairly new product.

With the Smart Shunt, I was using it to measure the top and mid point voltages of my 2s3p (24v/300A) system.

It also had a nice feature that you could reset and correct the SOC, should you have to shut the power off. (Both shunts loose SOC when disconnected from power). The Lynx CANNOT be reset to the last SOC, it only allows a 100% SOC reset, which is pretty useless.

The Lynx shunt DOES NOT monitor midpoint voltages or deviations, which is a feature I miss to be able to track if the batteries are becoming imbalanced.

Now, I do not know this for sure, but since using the Lynx Shunt I have had 3 occasions in the last week where the power from the Multiplus shut off due to one of the batteries dropping in voltage too low, under 12.5v. This never happened with the SmartShunt, and I am wondering if the Smart Shunt communicated the mid point deviations to the system, and it compensated in keeping the batteries charged and balanced?

2 hours ago, I reinstalled the SmartShunt to see if it indeed works with the rest of the Victron environment to do a better job of battery charging and maintenance.

Q. Are the features from the Smart Shunt going to be made available in the Lynx Shunt via a firmware upgrade anytime in the future

Hi!

I'm building a new setup for a 24V system with Multiplus II for solar and wind. The battery system is flooded lead acid and I'm interested in monitoring the battery level and charge rate with a Cerbo GX. My question is about the following busbar setup I'm currently planning:

Left side: Lynx Power-In (4 IO slots)

1/ 24V battery system

Right side: Lynx Distributor (4 fused IO slots)

1/ Multiplus II 24V 3000VA

2/ Solar charge controller

3/ Wind charge controller

4/ Victron non-isolated DC-DC converter 24V->12V

It would be elegant to add a Lynx Shunt V.E. Can in the middle, but it would be quite expensive and the CNN-type fuse is crazy expensive. So my idea is to add a 500A SmartShunt between between lower negative bus and then a wire/plate between the upper positive bus. (On a side note, if the Distributor had 5 slots, I could only use that and put the shunt on the negative battery cable.)

Is there anything wrong with this setup for the intended purpose? Do I still need a separate fuse for the battery side?

The new Lynx Smart BMS seems like a nice addition to the lynx family, however when looking thru the manual I'm not able to confirm if its also possible to use the Lynx Smart BMS with non Victron lithium batteries?

What are the Amps -> mV values for the Lynx Shunt VE.Can 1000?

Hi, I have a 190ah LFP battery going in to an ammo can which will be in my truck bed. I'd like to heat the box using small ~25w heat strip(s) when the battery is too cold to charge, but only if it was going to charge in the first place.

What I mean by that, is that if it's the middle of the night and below freezing, don't bother because there's no sun to charge with anyway. Similarly, if I have a foot of snow on the panels and it's freezing outside, don't bother because the panels might not even produce enough voltage to initiate a charge cycle.

I was thinking some combination of the street light function, load ouput, and BMV low temperature relay setting could accomplish this. Likely easily with the ability to invert the streetlight functionality but I do not think that's possible from my research. Maybe some NC relay that the streetlight triggers when it'd normally be operating an actual streetlight (night?)

Any ideas appreciated!

I am aware that a new Lynx Shunt VE.Can is initially set up to have the battery distribution to its left and the load distribution to its right. Is it possible to modify the Lynx Shunt to allow for the battery distribution to be on the right instead?

I am wondering if changing the position of all or some of the five sensing wires inside the unit would allow for changing the location of the battery distribution. If it is possible, which wires need to be moved and to which positions? If this is not possible by physically moving sensor connections, is there a software setting that could be changed?

My system is currently set up with the battery distribution on the right side of the Lynx Shunt. Based on my VRM portal reports the shunt is measuring the current flow in the opposite direction for how the system is connected. As an example, if my battery bank (9.6kW capacity) SOC drops from approximately 100% to 21% and my inputs are 1kWh from the grid and 21 kWh from the PV array, the VRM is reporting my consumption as 15kWh. Based on those input numbers (which I assume are collected directly from the Multiplus and MPPT), I think that the consumption number should be around 29kWh.

My system is:

8 x Battleborn 12V LiPO batteries (configured as a 24V 400Ah bank)

2 x Multiplus 24/3000/70

1 x SmartSolar MPPT 150/85

1 x Orion 24/12-70

2 x Lynx Distributor (used on battery and load sides)

1 x Lynx Shunt VE.Can

1 x Cerbo GX

1 x GX Touch 50

@Matthias Lange - DE @mvader (Victron Energy) @Daniël Boekel (Victron Energy Staff) - user overview - Victron Community

Trying to use the Lynx Distributor (and Power In) without the Lynx Ion Shunt or BMS (using BYD batteries). I had assumed the Fuse LEDs would illuminate with a working fuse in place and powered, however a line on the old Victron Live page for DC Distribution Systems suggests that this small data cable is used to power the LEDs (rather than taking power from the busbar itself). I cannot get the LEDs to illuminate - are the LEDs useless unless using the Lynx Shunt? Because Lynx Shunt uses CANbus, it cannot be used in conjunction with BYD on a CCGX (though I think VGX would support it).

Hi, I wonder if it is possible to use midi fuses on a lynx DC distribution system? So far I only can see the lynx only allows Mega fuses.

Regards,

Hello All,

I have a Cerbo GX connected via VE.Can to a SmartSolar MPPT 150/70 VE.Can and a Lynx Shunt 1000 VE.Can. I have DVCC enabled as well as SCS, SVS, and STS. I have found that the MPPT changes charging states correctly according to the readings from the shunt. However, it is not compensating voltage according to the temperature reading from the shunt. The MPPT seems to be compensating from the initial ambient temperature as the standalone strategy. The MPPT has v3.05 firmware and the shunt has v1.08. Any help would be appreciated.

I am connecting 2x UP2500 24V Pylontech batteries in parallel for use with the Multi-Plus II 24V/3000VA and was wondering if I need Lynx shunt or Lynx power in to do this. Or is the Pylontech internal BMS capable of monitering all of this and communicating with the Cerbo GX.

Below is the details of the setup I will be running. Please feel free to point out anything else I may be missing with this setup. Thank you in advance!

-2x UP2500 PylonTech 24V batteries

-Victron Multi-Plus II 24V/3000VA

-Victron Smart Solar MPPT 150/100 Tr

-6x 370w Trina solar panels

-Victron Cerbo GX and Touch display

New setup with Lynx Power In, Lynx Shunt 1000 (VE.can) and Lynx Distributor connected to LiPo (24 V 200 AH). All Victron. Downstream are 2 x Battery Protect 220, VE.Bus BMS, Multi 24/5000 and a VenusGX. All 'smart' units have latest firmware.

With all loads off there are no lights (LED) on either the Shunt (1) or the Distributor (4)

I have read all of the related posts on this site and in particular the three (3) links that Guy provided to a closely related question.

Have checked all connections to the batteries and both input fuses as well as the shunt fuse. All are OK.

Q1. Any thoughts?

Hello from sunny south florida,

I an Electrician and my company assigned me that task of building out a camper van for a client. After some research I ended up using a multiplus 12/3000 with a CCGX, the lynx shunt 1000a, a 45amp mppt solar charger with ~250w worth of solar panels on top of the van(I wanted more panels but customer wanted more storage)and 2 renogy 170Ah lifepo4 batteries in parallel, and an alternator charger. The equipment seems to be operating as it should with the exception 1 thing that just popped up last night. The load on the system is roughly 20w to power the ccgx and the cellular internet (according to my CCGX).

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with the rating of the batteries at 2175w each i estimated the system should run for ~200hrs +/-with no charge, ive been monitor the vehicle through VRM and it all has checked out until yesterday..the customer has had the van parked not in use all of last week. We had good weather all week with the exception of friday when it was cloudy all day and the solar didnt produce much.

To get to the point though the batteries died after ~ only 24-32hrs of no input am i mis-calculating something here or do i need to look into the current calibration of the system?