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lynx shunt

Lifepo4 capacity and lynx shunt calibration

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?


dan3i asked
dan3i commented ·

1 Answer

BMV Bug? - BMV vs Lynx Shunt in wild disagreement of SOC

Screen Shot 2020-09-20 at 5.11.12 AM.pngScreen Shot 2020-09-20 at 5.11.27 AM.pngScreen Shot 2020-09-20 at 5.14.16 AM.pngScreen Shot 2020-09-20 at 5.14.51 AM.pngHi,


I've been running the BMV for a few years and have ~60 automatic sync. I also have been running the lynx shunt for a while with about 10 automatic syncs. I've confirmed the settings between the two and interestingly they are wildly off between them. I've tried a couple of things and have some examples below. I've set up a rPI + grafana/influxDB to capture data at higher resolution than VRM portal so I can look at the data in different ways.


The large vertical jumps on the Battery SOC is from me forcing the SOC to match the Lynx to see how the slopes match up. The interesting things here is that the Ah Consumed match up pretty close with the Lynx SOC but not even close on the BMV.


With the the value right now, you can see I've consumed about 86Ah of battery power (86/1200), or about 7% based on the BMV stat. This is almost perfect with the Lynx showing 92% SOC, but the BMV shows 84% SOC. I then forced the BMV to be 92% a few min ago to see if this lines up.

While the Lynx CANBUS updates are slower than the BMV, there might be a bug with the BMV?


Grafana screenshots and BMV + Lynx settings attached. Am I missing something here?


Thank you!!



dgorman asked
dgorman commented ·

3 Answers

Fuse needed for the MPII 5000/48V and Pylontech batteries

Im trying to find out the fuse needed for this schematic that I want to install in an off-grid


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I would install 4 2.4kW Pylontech batteries.

The MPII manual suggests to install 200A fuse but I think it might be too much for this?


Thanks



tpwchr asked

0 Answers

Launch of the Lynx DC Distribution documentation manual - Feedback needed

Hello Community,

I have just published the Lynx DC distribution manual

https://www.victronenergy.com/live/dc_distribution

I would appreciate any feedback, suggestions for how it could be made better or clearer, or any questions you have that it doesn't answer.

Thanks, Guy

Guy Stewart (Victron Community Manager) asked
tony-c answered ·

4 Answers

Lynx Power in - Distributor

Quattro 15Kva-240V-48V- 4x4 (16 total) Victron 220 gel batteries 12V x 4 = 48V . 2 MPPT250/100

Triyng to find the best and nice looking solution to connect all 4 parallel string of batteries . Planning to use a negative and a positive bus bar receiving all 4 negative cables and all 4 positive ones.

Wondering if the Lynx power in can do the job : Receiving 4 of each lugs on the side connectors , and receiving the 2 MPPT and the Quattro + accessories (via the BMV712 Shunt) on the bottom connectors ?

Grateful for assistance

Herve RV Nizard asked
Herve RV Nizard answered ·

2 Answers

Lynx shunt not calibrating to lithium batteries

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Hi,


I have my lynx shunt calibrated exactly the same as my BMW and it’s seen about 5 full charges whereas the BMV has seen 60. The voltage is the same as well as the draw, however, the lynx seems to think that my SOC is 70% and based on the voltage it’s more like 40%, BMV is correct. Ideas?

dgorman asked

0 Answers

Lynx Shunt VE.Can 1000: mV values?

I have a Lynx Shunt VE.Can (https://www.victronenergy.com/battery-monitors/lynx-shunt-ve-can) and I would like to connect some non-Victron kit to it to determine power in/out.

The BMV-700 appears to be a 500A / 50mV.

What values should I use for the 1000A Lynx Shunt VE.Can?


rspott asked
rspott commented ·

0 Answers

Will the Fuse LEDs on Lynx Distributor illuminate without the 4-pin cable supplied with unit?

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).

midsummerenergy asked
mvader (Victron Energy) commented ·

3 Answers

Lynx Shunt 1000 with Lynx Distributor 1000

Hi

I've recently design a setup with 4 x 12V 200A Smart LiFePO4s in parallel connected directly to the Lynx Shunt 1000. The Lynx shunt is then coupled with a Lynx DC Distributor 1000 on its RHS. Connected to the Lynx DC Distributor is the Victron 12V 5kVA Quattro Inverter and DC loads.

Is it ok to connect the batteries directly to the Lynx Shunt 1000 and the fuse within the shunt can be used as circuit protection for the batteries?


Thanks


Nic


nic-sama asked
nic-sama edited ·

0 Answers

Converting a LYNX Power In hold MEGA Fuses (LYNX Distributor without circuitry)


Having watched Journey With Jono's video:

39. Lithium Battery Management & Monitoring Install:

https://www.youtube.com/watch?v=JW-v8PNx2C4&vl=da


I just wanted to confirm the LYNX's M8 Bolt length and material when modifying the LYNX Power In to hold MEGA Fuses to perform like the LYNX Distributor.


The M8 bolts appear to be around 30mm in length and look like Stainless Steel.

Considering M8 Brass Nuts, Bolts and Spring Rings.


Anyone able to clarify/recommend?

veganvanlife asked

0 Answers

BMS 712 and Lynx Shunt

Can I not use the shunt that cam with my BMS and just plug it in directly to my Lynx Shunt?

mccluretj asked
Justin Cook - Bay Marine Supply USA commented ·

1 Answer

Lynx Distribution with midi fuses?

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,

tony-towers asked

0 Answers

Starter battery voltage - Lynx shunt

Hi,

Today i noticed a widget on the VRM portal under my Lynx Shunt called "Starter battery Voltage".
Is it possible to measure the voltage on a second battery on the Lynx Shunt?

Or is it just for when you have the 712 version?

Kind Regards

ehsab

ehsab asked

0 Answers

"lynx shunt 1000" how to install/connect?

I received the "lynx shunt 1000" without any documentation/installation instructions. Even after having looked through the Ion+Shunt manuals on the Victron website, I don't know how to use the provided two-core cable (red/black, green plug on one side ending together in one loop). Can you please explain on how to connect this device?

freeng asked
Mark answered ·

2 Answers

Where/how should a main switch be included in a Lynx Dist-Shunt-Dist setup?

Normally I want a main switch after the first busbar on the positive side. What is the recommended solution for a "complete" Lynx setup?

I'm using two batteries in parallel and will connect them to a Lynx Distributor (each with a 200A fuse).

johan-andersson asked

0 Answers

What configuration would be best for a lynx dc distributor with 16 batters?

We have a 3 phase 30kva Quattro invert configuration. we are looking at installing 16 victron super cycle 220ah batters in a 48v configuration, with 3 battier balancer and lynx 1000a. What is the best configuration for that battier balances and will 3 be enough?

Shiloh Luyt asked
warwick edited ·

1 Answer

Lynx Shunt doesn’t show SoC

Hi,


I have a lynx shunt (and distributors white BattleBor. Batteries connected to them) and the Lynx shunt matches my BMV settings exactly. I don’t see SoC with the lynx shunt even after doing a reset. Changing the battery monitoring from the BMv to the Lynx is how I see there is no SoC info. Does the SoC only work with victron batteries?

dgorman asked
Mark commented ·

2 Answers

Lynx shunt reference voltage?

Hi,

Anyone know the lynx shunt reference voltage? Would like to attach my BMV PCB board to it so I can still use it.


thanks!

dgorman asked
dgorman commented ·

1 Answer

Lynx Shunt VE.Can Transmit Frequency?

Is it possible to adjust the transmit frequency of the current data (PGN 0x1F214 / 125708) from the Lynx VE.Can shunt? In our system it only seems to broadcast about once every 1.5 seconds. We're trying to feed the data via CAN to an alternator regulator and there's too much latency for the control to stabilize.

More generally, is there any documentation available for the Lynx Shunt VE.Can standalone? All I can find is the manual for the Lynx Ion w/ Shunt, which seems quite a bit different.

Thanks.

relevante asked
relevante commented ·

1 Answer

BMV using lynx shunt and Lynx shunt

Hi,


I’ve installed the lynx shunt and made my system use it vs my BMV. I then attaced the BMV shunt PCB to the lynx shunt and are sure the BMV settings has 1000A for the shunt size. I need to have the gauge display, however, I noticed the BMV is becoming more inaccurate as time goes on and it used to be right on the money. What is the voltage for the lynx shunt, the BMV was 50mv. Barring this set up, should I put another shunt in-line for the BMV? What are others doing?

dgorman asked
Daniël Boekel (Victron Energy Staff) answered ·

1 Answer

Battery Temperature monitoring with Lynx Shunt

I am installing an all Victron system in a vehicle consisting of 12V lithium batteries, Lynx distribution, Lynx shunt, Ve.Bus BMS, Multiplus, smart battery protects, MPPT, BuckBoost, Digital Multi Control, CCGX and am trying to determine how the battery temperature should be measured in order to prevent charging below 5 degrees.

I have a temperature sensor supplied with the Multiplus and what looks like a temperature sensor supplied with the Lynx shunt. I can't find any info for the Lynx shunt sensor - does it connect to negative or positive as the BMV? The only thing I found was "Please don’t use the 2-pin terminal block on the Lynx-shunt" from https://www.victronenergy.com/live/dc_distribution. If this means the sensor why is it supplied?

The CCGX manual states that DVCC should be enabled when the system is "standard" and there are "intelligent batteries" installed. In this case are the other temperature sensors redundant?

Any clarification appreciated.

djwiscombe asked
djwiscombe commented ·

1 Answer

Lynx Power In left or right of Lynx Shunt?

I have to install two 48V 2600Ah parallel OPvZ battery banks to a Lynx Shunt so I will use a Lynx Power-In to connect these batteries to the Lynx Shunt.

As far as I know, you are supposed to connect the batteries to the left side of the Lynx Shunt and the chargers + load (via a Lynx Distributor) to the right side.

However, in my setup it would be more convenient to swap both sides. So is it mandatory to connect the batteries at the left side of the Shunt and the loads/chargers at the right side or can I swap both sides?

Thanks a lot for a quick reply!

brambaut asked
bluelghtning answered ·

3 Answers

Lynx Shunt and fuse type?

Hi,

My Victron supplier who sold me the Lynx shunt doesn't have a 400A CNN fuse.
Is it ok to use an ANL fuse of 400A instead of the CNN?

My system has external fuses and if there is nothing else involved for the fuse on the shunt then to blow when overcurrent is flowing between battery and units then i in reality could just connect a piece of copper.

Kind Regards

ehsab asked
ehsab commented ·

1 Answer

Does the Lynx distribution measure each battery?

Hi,


im thinking about removing my single 400A fuse and using (3) lynx distributions to my (8) battle born batteries, with shunt and then distribution to main switch. Can I see the voltage of each battery? Can I retain the BMV 712?

dgorman asked
Guy Stewart (Victron Community Manager) answered ·

1 Answer

BMV & SmartSolar Streetlight to warm battery box

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!

hour asked

0 Answers

What differs the BMV-702 from the Lynx Shunt?

Hi,

I will soon begin a project with 3-phase Quattros and was wondering if the Lynx Shunt is a substitute for the BMV-702?

I will be using the Lynx Power In modules on either side of the shunt since i have external fuses/breakers.

I don't mind that i lose the display on the BMV-702, but that's about all i would like to lose if going with the Lynx Shunt connected to the Venus GX.


Kind Regards

ehsab asked
wildebus answered ·

1 Answer

Colour GX monitoring 2 Lynx shunts

Hi we want to use 2 Lynx shunts to monitor 2 banks of house batteries can the GX display both "house banks" at the same time?

mark-2 asked
Martijn Coster (Victron Energy Staff) answered ·

1 Answer

Lynx Ion + Shunt Error #24

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My friend is at sea and is getting this error per screenshot. I have checked the manual but see no ref to #24 Any idea what the issue is?

John Rushworth asked
John Rushworth commented ·

1 Answer

How to power a Lynx DC Distributor without the LYNX shunt? [CLOSED]

In this manual is stated that the Lynx Distributor can be used without the Lynx Shunt. But unfortunately, the status LED's on the Lynx DC distributor aren't working in this kind of setup.

The Lynx distributor gets powered by the RJ11-cable, between the distributor and the shunt, but since there is no shunt, there is no power on the main board of the distributor.

Is there a solution? For example: can I power the distributor alternatively by connecting a power source directly on the RJ11-connector on the distributor? If so: how many volts, on which positions of the RJ11-connector? And what fuse do you recommend on this power source?

baronner asked
baronner edited ·

1 Answer

Victron Shunt with BYD battery

Hi, Everyone

I am planning to installed a parallel 3 phase quattro 10kVA and 2 Mppt , 2 byd Battery banks with BYD BMS. Two questions, can I connect all DC terminals in 2 LYnx Power in. I am confused why battery need be connected to DC power in and MPPTs Inverters must be connected to DC distributor. In my case , do I need connect a Lynx shunt? I do not think so.

Another question is what is the difference between shunt and shunt ion and shunt ion BMS. They all like seem functions.


Thanks

john2019 asked
David Foret (Victron Energy Staff) answered ·

1 Answer

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