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Running a system powering a number of cabins.. Setup consists of 16kva generator, 10kva Quattro and 400ah of battery storage. Loads range from 7kw to 16kw during the week and 2kw to 6kw on the weekend. I have the system set up to fire up the generator on loads greater than 4.8kw so during the week the generator runs continuously with the batteries/inverter operating in assist mode to support demand spikes over 12kw. On weekends demand is served by the generator or batteries depending on load/soc. During the week the batteries are almost consistently at 100% soc and at weekends they vary from 50% to 85%. My question is why do I see lots of dc ripple alarms during the week but not at weekends. I realise the loads are lower at the weekend but so is the soc. I have another system running similar loads but without any dc ripple alarms.

VictronConnect crashing / locking up when trying to update BMV-712 firmware

This is happening on Mac, iOs, and Android.

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I just installed a BMV-712 and installed the Victron Connect app on a Samsung S7. Pairing through the app went okay. Then when I click on the device in the devices list, a page opens saying "BMV-7xx Smart Bluetooth Interface update required" before using the device. At this point the app locks up. No buttons work including the back arrow. I thought maybe it was an android issue, so I installed the app on an iPad. I had the same issue with the app locking up at the same point. Any ideas on how to update the device so I can use it?

Installed version is v2.14, New version is v2.23

Thanks

I just purchased both the BMV 712 and the MPPT 100/30 smart solar charger. My understanding is that the solar charger will use the BMV 712 to compensate for temperature. I would like to monitor the chassis battery bank as well. I am reading in this forum that the MPPT controller itself has a temperature sensor, but it is taking the temperature where the MPPT is installed. Is this correct and I really do not have to worry about the temperature sensor with the MPPT solar charger mounted close to the batteries? Should I purchase the battery sense to add the temperature sensor and monitor both battery banks?

Thanks,

Bill

20191211_192300.mp4

I live in Curacao and use the ESS system

Hi! We build camper vans and would love to add a thermostat or two to display indoor and outdoor temperatures via the Victron Connect app. Does Victron or 3rd-party have a Victron Connect device for this?

installed a bmv 712 connected to Victron app and shows the 712 in the device list after selecting the 712 a update screen pops up

but when I hit update nothing happens apps stays on update screen locks up phone .I use the same phone with all my mppt controllers and it works fine including battery sense.

just to be sure I tried the bmv-712 on another phone and same thing happens.

and ideas ? hope not doa.

Did an App update on my Victron Connect app and then when i went in it found the inverter as normal but then said I needed to do an Firmware update on the dongle...

I click on the UPDATE button but nothing happens.
Currently just leaving it for about an hour but still nothing.
It did an update quickly when I first bought it and updated.

Can anyone help me as I cannot monitor my inverter or use it remotely via the dongle and I need to!

CheersMat

I’ve just installed a BMV 712 monitor and a Bluesolar 100/30 controller and I am seeing some very odd behaviour. First this is a dark, gloomy, rainy, windy day here in the Pacific Northwest. I have two hard panels wired in series and two semi flex panels wired in series, both sets wired in parallel to the charge controller. Each panel is 100 watts for a 400 watt total.

With everything connected the power and current from the charge controller oscillates from a low of 14 volts then rises to 32 volts before immediately dropping back to 14 volts. This pattern repeats every 30 seconds or so. The 14 and 32 volt thresholds might change by a volt or two on every cycle but the pattern is consistent. As the volts go up the amps go down. We’re talking 0 to .8 of an amp.

FYI the panels are one year old and worked just fine as configured with my old Epever controller. The wiring has not changed

has anyone seen or is familiar with this pattern? Any suggestions?

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Hi everyone. Ive had the BMV 712 installed on my van but it always says infinity. Even when the battery’s went flat once. I’ve checked the wiring and I assume it’s correct. Apart from all the dust can anyone point me in any direction on where i should start Please. It’s driving me nuts.

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After one or two minutes of use, the controller stops to send power to the instruments. If I disconnect the - of the battery, and reconnect even immediatly, it reworks for, again, one or two minutes.

I have tried to plug the battery direct, no problem, so it seems that's the controller which is in fault. Is it possible to fix it?

Thanks and regards,

Éric

I am a little confused which is not that hard to do.. I am buying a bmv700 battery monitor that comes with a 500 amp shunt. My battery bank has a total of approx 665 amps..do I need the 1000amp shunt??the manual says that the 500 amp shunt is satisfactory in most cases. So do you base the shunt size on battery total capacity or what you expect the total maximum amp draw will be at any one time. I would expect that my max draw would not exceed 400 amps and then only when the 2000 watt inverter and bow thruster operating at the same time and then only got a couple of seconds at a time. Thanks

I'm still making adjustments, so perhaps something isn't quite right yet. My battery bank is 600Ah of Lithium. My Charged Voltage is set to 14.5; Peukert Exponent is 1.05; Current Threshold is 0.10A; Charge Efficiency Factor 99%.

My 150/100 MPPT indicates a battery bank voltage of 13.7, and remains in bulk charging mode.

My load consists of basically the refrigerator and a little bit of electronic gear. BMV is showing 0Ah consumed, and that +450A or so is being applied to the batteries.

There seems to be a mismatch between voltage and tracked current. Am I misunderstanding something?

I had synchronized the BMV just a couple weeks ago shortly after installing it when I was on shore power. We stayed on shore power until just a couple of days ago. My first run down of the batteries when to 28% a couple night ago. Solar has been doing the over the past couple of days; I would not have thought the BMV synchronization would be lost that fast.

Thoughts on what I should check/adjust next?

The inverter kept on complaining about low battery alarm but venus shows that the battery is 100% fully charged. if is there anyone with the demo version on setting up this kind of system on VEcong, would you please send me the link. Thank you in advanced

I'd appreciate the help of the community to give me some direction in designing a system.

• I have a storage shed that is off grid. It is used to store a four vehicles that get infrequent use.
• Each vehicle has a battery system, and three of them are different voltages, 18v, 24v and 12v.
• Each vehicle has a dedicated mains charger.

What I'd like to achieve is a cost effective means of charging and maintaining the vehicle batteries. There is no need for any other power i.e. if it were possible, a stable mains supply during day light hours would be sufficient.

About 1Kw of mains power would be sufficient and allow for charging batteries with some diversity (i.e. not all chargers running 'bulk' charge at the same time) as well as maintaining them.

My initial thought was a solar panel of around 280W, ( which should be more than sufficient to run all chargers in trickle mode) MPPT controller and a small ish battery to supplement solar when demand is greater than the PV panels are producing.

I'm struggling to figure out what size of system battery would be needed, given that no power is needed during the night, and if there was a day without mains (while the system battery recharged?) it wouldn't be the end of the world.

Any help, guidance, or pearls of wisdom greatly received :-)

Hello I want to use the Cerbo GX with GX touch 50 in a place without internet connexion, there is 50 meters between the screen and the Cerbo GX, is it possible to work with bluetooth or with cable connection. ? Thanks for your answer.

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.

When I plug details for 3 x SunPower Maxeon 3 400W panels in series for a 12V battery bank into the MPPT calculator, the only recommendation is for the 250/85, which the calculations indicate will be overpowered at max and min temperatures. Why isn't the 250/100 being recommended? Is it included in the calculator? Panel parameters are: 400W, 75.6Voc, 6.58A Isc, 65.8Vmpp, 6.08A Impp, V temp coeff 0.27%/C, I temp coeff 0.04%/C, 12V system. What are the calculation results if a 250/100 is used?

Is it possible to have the MPPT not starting a new charge cycle every day? In fact i only want to start a new cycle if the voltage drops below the re-bulk offset. This to save my LFP batteries when there are no power consumers since they don't like te be at high SOC for longer time.

How is this taken care of with victron lithium batteries? I assume, since they have the same chemestry, they also don't like to sit at 100%soc for a longer time?

Hi,

My Fronius Primo is showing 1,400W Output on the LED display, I have loads on in the house, but my CCGX is showing an AC load of 0, and no PV Yield (No icon even). However, the battery is charging a bit (434W) Any ideas what could be going wrong here?

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Hi,

we have just installed the BMS 12/200 as part of a marine lifepo install together with BatteryMonitor 712 and Victron Superpack as well as Multiplus Compact 12/1600.

The pack did not come with Battery Control cables shown in the wiring diagram in the manual so I guess they are optional?

All seems to be fine BUT the voltage of either the Alternator (AB) or Battery Charger (LB) does not arrive at the Lithium Minus Out in the middle of the BMS 12/200.

So I can neither charge nor discharge the lithium batteries through the BMS at the moment. All other components work fine.

any help much appreciated!

thanks,

Valerian

All digits and images are not fully displayed any more. The device is still functioning properly as far as I can tell. I think it is about 6 years or more old.

I am installing 6 12.8v SuperPack batteries to be charged by a Balmar 200 amp/externally regulated. Good size alternator? Sail boat =short engine time running.Currently have 100 amp Balmar? external reg. Thanks

Planned: Multiplus-II + MPPT + Venus GX in ESS mode with grid feed-in. The house has a backup generator in case the grid fails which can be started manually, switching also manually from the grid to the generator.

Once the house is connected to the generator, can it be avoided that the Multiplus-II injects towards the generator?

I have not found an assistant or any other means to disable grid injection (towards the generator) and disable LOM (Loss Of Mains) detection based for example on a signal to AUX1 input. The signal can come from the same switch that selects grid or generator (with an additional circuit).

Is there a way to make this work with Victron-gear only? Of course without having to modify the ESS/Multiplus-II configuration manually before and after using the generator.

Can an external control (Raspberry) disable grid feed-in when the generator is connected?

Can the LOM detection be changed/disabled by an external control?

Or better bypass the Multiplus-II when the generator runs (and not charge batteries)?

A Quattro is not an option because of grid feed-in regulations.

I have consumption on 0,2 amps, but on consumed ampes its not showing anything. When higher consumption exampel 10 amps its shows, but not on small consumption like 0,2 amp. After 14 days it should have shown 67 amps(0,2x24hx14 days). Any settings wrong?

Hi, I am upgrading batteries on a 3 x Quattro 10kVa system. The max that the Quattro can take is 1000Ah. Would the 10OPzV1000 be the correct battery? Also at 48V, would 24 pcs x 1000Ah make 24kW of battery storage?

Hi

I am installing a system using Multiplus charger/inverter. I need to configure the Multi. Hence communication between PC (Lenovo Win10) and Multi is required.

I have installed the VE configure III and I have a MK3 USB interface.

When I let the VE Config auto detect nothing happens i.e. the programme is doing a search and eventually times out.

When I try manual connection to e.g. Com3 an error message apperas saying "Cannot open Com3" - it does not help to change Com port no.

I have removed and re-installed the MK3 driver. In device manager I am able to locate the virtual serial port i.e. that part seems to work fine.

I have also tried to use the VE Bus Quick Configure software - and the error is the same

Any good suggestions?

p.s. I have tried on a different Multi and the error message is still the same. I have not tried a different PC yet - not so easy due to remote location

Hi all

I have a 24v 385w Phoenix inverter with the most up to date firmware, I have 2 flashing LED’s which according to the toolkit app Means that the unit does not have calibration. Is there anyway to calibrate it or reinstall the firmware as I believe that the installation of 1.17 did not install correctly causing this issue or do I HAVE to replace it? It is under guarantee still as it’s only 6 months old. I have also downloaded the firmware file from Victron professional and the App will not even show the file in the firmware library.

I have a Multiplus II inverter and two MPPTs. I like having Bluetooth capability on the MPPTs, but using the dongle to monitor the Multiplus is a pain because I have to go to another building to plug into it. What’s the best way to set it up so I can monitor the system remotely?

Will it show the temperature/Voltage in the VRM portal?

..if i link the smart battery sense to BMV-712 to Ve.Smart Networking

..if i used wire temperature sensor to the Stater Battery