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smart solar set-up help

Set generator as running when AC1 is active.

Hi folks,

I have AC1 set as generator input and it works as expected, bar for a limit addressed on another post.

I would like to track generator run hours but I do not have auto start set up yet as this involves a modification of the generator.

I currently start and stop the gen manually, which works for me right now, and would like AC1 to set the generator start and stop flag which would then log run hours for me.

I apriciate that its litterally the reverse of what would typically be required.

Is this possible? If not is there any way to build and run a script to make it possible? Could I build a custom helper of example. or is there perhaps a helper that runs script?

Multypluss 48/5000/70 & CCGX.



Alistair Warburton asked
Kevin Windrem commented ·

3 Answers

Smartsolar 250/100 not visible

Hello,we've recently installed an off-grid system using Pylontech batteries, 2 paralleled multiplus II ,diesel generator, a Smartsolar 250/100 and a color control.

All is set up and working fine except the Smartsolar charger doesn't seem to be visible. It is providing a charging output but not being controlled by the batteries requirements and not showing on the screen. The selector switch is on number 7.

We have it connected to VE.can on the CCGX there is a terminator in the other CCGX port. From the second port on the Smartsolar we have the correct type of lead to the batteries. There is no terminator on the battery end. We also have tried connecting using VE direct as well with no difference.

The Pylontech shows on the sytem and is providing SOC etc information as expected.

Any help greatly appreciated.


istruggledaily asked
Alexandra commented ·

0 Answers

Control maximal Charge Current from SmartSolar MPPT 150/85 with BMV 712

Dear Victron,

I have installed an oversize PV System in relation to the battery in my car (Old VW T2), which I use to demonstrate PV opportunities in Indonesian rural areas. ( All installation is private financed by us and we try to promote renewable energy to rural places in Indonesia without any payback. But step by step the local media ask us for interviews and talks in the television and we start our blog in Indonesian on YouTube :D

1. The Panels can produce 1,16 kWp under STC. Size was chosen based on the maximal allowed space on the roof.

2. SmartSolar MPPT 150/85 charge my battery with an additional SmartBatterySense and BatteryProtect BP-100.

3. Just one Luminious SMF 12V 200h is installed due to weight and lack of space (I know this is not ideal, but it is an old car and 69 kg for each battery is just really heavy)

4. SUOER FPC D1000A Pure Sinus Wave Inverter (1000W continuous power/2000W peak power)

To increase the maximal life-cycle of the battery under tropical high temperature I reduce the maximal charge current to C10, which means 20A. When I demonstrate it to the people I put some big load to my Pure Sinus Wave Inverter. Since my PV System can easily produce more than 80 A on the 12V site at daylight, I need a device which can change the maximal charge current depends from the load.

The BMV 712 can easily read the current and direction of the current which going in and out of the battery and it can be easily connected via Bluetooth to the other devices.

Is there a possibility to drive the MPPT from the SmartSolar MPPT 150/85 with the measured current from BMV 712 so that the net current to the battery is limited to 20 A?

Or is there another device which can do this which is available in Indonesia, because Victron parts I bring directly from Germany? I didn't buy the BMV on those time due to lack of money, but now because of the response and the interest I need a solution.

It is so great to see the people step by step understanding renewable energy and with my background as a physicist i can explain them a lot :D

I am really happy for any advices or helps.

Thank very much.

Best regards,


pvwkombiwanderer asked
JohnC answered ·

6 Answers

SmartSolar MPPT 100/20 turning the load "On" then "Off" then back "On".

I purchased a Victron SmartSolar MPPT 100/20 Charge Controller. I am having a problem with the charge controller cycling the load "On" then "Off" then back "On".

Description of failure:

1. The charge controller will show that the load is set to "On".

2. A 12v fan is connected that draws a max of 9W of power or a car cell phone charger is plugged in (without the phone connected or charging)

3. The charger controller will show that the load is turned to "Off"

4. Have a pause for 1 to 2 seconds

5. The load will then be turned to "On"

Notes: The charge controller never shows a voltage below 12.6 volts from the battery so I know that it is not pulling a large load from the battery.

I don't see how a 12v phone charger without a phone connected could be tripping the 20A capacity of the controller.

sailboattn asked
tomvacek commented ·

2 Answers

Smart solar 100/30 with lifepo4 inconsistencies

Have installed a smart solar 100/30 and have a 200ah lithium Chinese battery with built in bms and no interface. Also using a Victron smart sense and a victron battery protect on the load side. Currently using the lifepo4 default charging profile, but in the max charging history I’m seeing figures of over 14.7 v most days and over 15 volts some days. Is that normal?

Also confused about the difference between absorption and float. I was under the impression that you are not meant to float lifepo4 batteries, yet the charger is choosing to float.

Is the default setting the best one to use or should I be tweaking the settings using expert mode?

Sorry for the newby questions, I’ve done a ton of reading but there’s heaps of conflicting information out there.

Bought (and love) the victron kit so I could look after my shiny new battery properly, just want to make sure I have it as right as can be.

stephanv9 asked
Matthias Lange - DE answered ·

1 Answer

Welche Parameter für benutzerdefinierten Ladealgorithmus der MPPT-SmartSolarRegler

Hallo in die Runde,

noch bin ich neu hier und unwissend.

Ich plane mein spezielles E-Fahrzeug (kein normales E-Auto) mittels einer Solaranlage zu laden. Hierfür erscheinen mir die SmartSolar-Laderegler durchaus geeignet. Das Fahrzeug verwendet LiFePo Batterien, natürlich mit BMS. Aber die Anzahl der Zellen entspricht nicht den üblichen vielfachen von 4 für 12/24/48 V. Verbaut sind 15 Zellen in Reihe also nominal genau 48V. Bei ca 51 sollte von Bulk auf Absortionsladen umgeschaltet werden, und Absortionsladen sollte auf höchstens 53,2 V begrenzt sein. Der vorprgrammierte LiFePo4 Algorithmus hat gemäß Datnblatt der Regler eben höhere Werte, weil hier von 16 Zellen ausgegangen wird.

Wo knn ich etwas über die möglichen Parameter und Wertebereiche des vorgesehen benutzerdefinierten Algorithmus erfahren oder nachlessen. Sind obige Werte programmierbar.

Freue mich über jede helfende auskunft und verbleibe

mit freundlichen Grüssen


kinzigsegler asked
kinzigsegler answered ·

2 Answers

VE.Smart Networking Unidentified Network

I was installing one of my Smart Solar MPPT VE.Can devices today, and browsing the menus to see what was around. Having never used or looked at VE,Smart I opened the menu and selected join existing and found an unknown network, "Olaso UNO".

The only thing in my Yacht that has this name is the Cerbo GX and VRM Portal. Any ideas what this is?



bathnm asked
bathnm commented ·

1 Answer

Solar panel confusion

Hello, I am looking for advice regarding updating my current solar panel setup on my leisure vehicle.

Currently I have a single 80w panel and a Victron 75/10 controller. With weight on the roof being the constraint, I think I have three options:

  1. Add another 80w panel and wire them in series to take into account the factory wiring, using the current controller
  2. Add another 80w panel and wire them in parallel but update the factory wiring, using the current controller
  3. Remove the 80w and install a 100/20 controller, update the wiring and a 200w panel (being the max size/weight I could install)

What do you think would give me best yield, all year round in the UK?

Many thanks for looking.

harrib0 asked
wkirby answered ·

1 Answer

Smart Solar MPPT 150/70 VE.CAN

I am about to install the above model into my system comprising a Cerbo and Smart Lithium Batteries with a VE.Bus BMS. I have been reading the manual in preparation and found the following regarding the BMS connection.


I am surprised that it suggest the VE.Bus BMS charge disconnect is connected to the L-Pin. The VE.Bus BMS will supply a high signal until a charge disconnect event occurs when the signal will drop too floating. In all other devices the VE.Bus BMS is therefore connected to the H-Pin. Even the description of the use of the L and H terminal match that in all other manual, and implies it should be connected to the H pin.

Could someone advise if this is a typo in the manual and the VE.Bus BMS should indeed be connected to the H Pin of the Smart Solar MPPT 150/70 VE.Can?

Many Thanks

bathnm asked
Matthias Lange - DE answered ·

1 Answer

Is this a Normal Trend Graph?


I have a mppt smart solar 100/50 charge controller. I have 4-25watt hooked up in parallel. Im seeing my trend graph constantly fluctuate between 13 volts and back up to 19 volts. Nominal output voltage is near 22 volts. My amps hardly go above 3.5 amps. Nominal amps are 6.8 for specs.


zeb-jafolla asked
Rob Fijn answered ·

1 Answer

Low temperature cutoff not working

I have attached a temperature sensing cable to my BMV712 and it is reading the temperature off the battery. I have connected my mppt 100/30 through networking to the bmv and the controller is receiving the temperature. The controller is set to rotary switch 7 for my LifePo batteries and the low temperature cut-off is greyed disabled but showing 5c as the documentation says. However it is NOT stopping charging as I have tested this down to 3c. This is a VERY important feature for me as I live in the mountains of Colorado and we get cold. It is NOT working. Please advise.

hankhatch asked
wkirby commented ·

0 Answers

Solar Production Example

Hi all, I am taking a stab in the dark but was hoping someone in the community might be able to help.

I am looking into installing some solar panels with my system and would like to get a real idea of how much of a difference it has made for other users.

I am based in Pretoria and essentially would like to get some solar data from someone's installation so I can look at how effective it was/is.

I dont know if anyone is comfortable to send me anything, but it would be greatly appreciated and would help me ever so much. A CSV would be ideal but at this stage, I would take anything.

Regards Ewald

ewalderasmus asked
ewalderasmus commented ·

1 Answer

Power Difference between values shown by Smartsolar and Smartshunt (Battery Monitor)

There are huge differences between the Values I get from the MPPT and the battery. Everything is luke warm to ambient temperature. Cables are not an issue - they are total overkill.
The Smartshunt values are independently verified by a very good BMS.

Anyone can shed some light on the situation for me?

Power Solarpanels: 34.07V * 13.4A = 456W

Power Battery: 27.27V * 16.30A = 445W

MPPT efficiency loss: 2.4% That's ok


Meanwhile, the Smartshunt shows verified 407W!!

Where are the missing 38Watts??


I am using LiFePo4 at low C rates - so round trip efficiency is virtually negligible in light of the losses I am trying to figure out.

Update: I've measured everything, thank god that I've the equipment for that since values vary in the milliseconds.

The only thing that does not match at all is the purported Solarpanel amperage output. Voltage seems pretty accurate. As such 1.4A were reported, when there were really 1.1A. A 21% difference!

That makes me really fed up and unless that is my specific unit I am gonna make sure that other people will become aware of the kind of product they are really buying.

But that doesn't explain everything. The only thing certain is that there are no real physical losses present.

lorenzo asked
jeroend edited ·

1 Answer

MPPT 150/45 TR with 4 175W HQST Solar panels

I recently acquired a Smart Solar MPPT 150/45 TR. I used the Victron MPPT Calculator and the recommended settings based on Victron solar panels, was this model. My question is The following.

Based on the Nominal PV power @ 12V for the controller is 650W. My total PV array power with all PV cells in Series will be 700W. The Voc for each pannel is 24.3 and Vmp is 20.3, the current is Imp 8.62A and Isc 9.35A. If I used these 4 panels in this case I will be exceeding the recommended power in which I know is not good; But when I typed my numbers it appeared to be good for this model in the calculator as seen below:


Using other calculators and taking into consideration the temperature effects it will give me 60Amps which also exceeds the current parameter.

My battery is a Lifepo4 at 12Vdc or 14.4Vdc (400AH). If I do a manual calculation using the MPPT of 700W/14.4 it gives me 48.61A. (1) Should I drop 1 solar panel to reduce the wattage, to be on the safe side or (2) should I do a parallel series arrangement for this controller? On a similar note the PV array will be 40ft away from the solar controller, the MPPT Boost effect only occurs downstream meaning on the output of the solar charge controller or this MPPT boost effect occurs input and output of the controller. This is just to know how I will size my Input cables from the PV array and the output to the batteries. Thanks for your help in advance.

lightguide asked
lightguide commented ·

2 Answers

Integrating 123\SmartBMS with Victron components like the Multiplus and Smartsolar mppt?

Any suggestions for available/recommended relays/integrations between these components? My understanding is that 123 smartbms has a relay connection that should be able to talk to the multiplus....but I'm not yet certain of the specifics.

Stephen Otto asked
jeroend answered ·

5 Answers

best way to use the Solar Power first on a Quattro system when connected to the Grid

We have 2 x Quattro 24/8000 units with 4 Kw of DC coupled Solar with a 250/85 mppt smart solar reg

The Units are 1 year old and on the latest Release Firmware 473

whats the best setup to get the system to use all the available solar power first before it draws form Grid or the Generator.

The picture below shows 30watts of solar but it should be over 1.5Kw available at this time of day


Paul B asked
Paul B edited ·

2 Answers

SmartSolar 75/15 Absorption Voltage Higher than Set

Finally have a clear cold day and am able to test my SmartSolar 75/15 installation. I have a pair of new 100ah 12v AGM deep cycle batteries that were only slightly discharged and a 100 watt 20v solar panel supplying the charge.

To the point, the configuration screen of the charge controller shows the absorption voltage set to 14.4 volts, but the app shows the actual voltage being produced is a consistent 14.67-14.68 volts. My BMV-712 Battery Monitor confirms the voltage as 14.65 volts which is close enough. Reading voltage at the batteries with my older voltmeter shows 14.58 volts.

My concern is the battery manufacturer says 14.7 volts is the high end of the absorption range and I don't want the controller to ever exceed that. Since the controller is already exceeding its own configured voltage, I'd really like to know if there's a risk of the voltage going even higher.




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jaeger asked
mark2 answered ·

2 Answers

No load output

I tried to search but I am unable to find out how to turn the load output of my smartsolar 100/20 mppt back on. Resetting with the victronconnect app does not do it. Smartsolar has the jumper removed.

Twice today the load output switched off. First time when connecting a 12v pc adapter/charger to the load output. It came back on after i disconnected the adapter, set the load output to off, then back to batterylife.

Second time when I connected a Lipo rc charger to the load output. The charger was in idle mode, not connected to anything. I disconnected it, tried the same procedure as above (+"allways on"), and even reset the smartsolar with the app. I still have no load output.

The smartsolar is hardwired to two lifepo4 100ah battries and two solarpanels (in parallell). The installation is in a cabin with quite long cable stretch, previously powered by 3 AGM batteries and a PWM regulator with no such (but other) problems.

Any ideas?

Smartsolar firmware is v1.39

tom56 asked
tom56 answered ·

10 Answers

Relay for SmartSolar 100/20 load output
I am having trouble connecting things like a car stereo, inverter etc to the load output of my SmartSolar 100/20 MTTP. Apparently the new 1.42 firmware did not improve on things.

I read in the forum that adding a relay may fix the load output disconnect problem. I would like to try to install a relay on the load output but I don't know what relay is recommended or how to connect it. The power consumption in my system seldom is above 130W (lighting, pc, tv etc)

Please link to a quality, low self consumption kind of relay (if there is such a thing). Even links to ebay may be of interest. I also need to know how to connect it. Thanks.

tom56 asked
tom56 answered ·

2 Answers

How to: two smart solar devices networked to a bmv712

I have, in my RV smart two solar controllers and a soon to be BMV 712.

I understand from some users on this site that the smart solar devices can synch together so they stay in the same charge mode, ie share the charge current.

To do this i think i link all three devices in the same blutooth network. But then what? Do they them synch their modes by talking to the BMV 712?

Is there any other component I need to make this work?

Currently, my solar devices will work on their own, but together, only the highest output device seems to supply full current. The other stays at 0Amps. Although I'm not sure the fact that its the solar controller with the brightest panels that triggers it to be the only provider.

Any help would be appreciated.

tundra57 asked
mrseas answered ·

1 Answer

MPPT 100/20 , Battery monitor and Phoenix inverter in a mixed DC an AC system

If I connect the inverter direct to the battery should I connect the DC 12V loads to the MPPT or to the battry also? A battry monitor BMW-712 is part of the system as well

amatts asked

0 Answers

What am I missing in order to have a full Smart Victron system?

So I've come up with this setup and I'm wondering if I'm missing something, I want my setup te be completely smart so I can see stats and change settings of all my devices through the Victron app. I'm also wondering if all my components are the correct size and type for my solar panels and battery.

- Fiamm POWERCUBE AGM CX 230 AGM, 12V 230Ah

- 2x Panasonic HIT N-serie 250 W SJ25 (combined in paralel produce: 44.3v/11.3A)

- Victron MultiPlus 12/800-35

- Victron Smart BatteryProtect 12/24V-65A

- Victron SmartSolar MPPT 100/20

e11enn asked
solarhack answered ·

2 Answers

Help with setting - 180w panel, MPPT 75/15 and 2 x 60ah gel batteries



i have a single 180w panel, MPPT 75/15 and 2 x 75ah gel batteries and getting a bit confused with the settings.

What would you recommend for the battery preset. Currently on default.




brettt asked
brettt edited ·

1 Answer

SmartSolar MPPT opportunity load question (again)

Hello everyone, variations of this question have been asked before on the forums.

I have a 2000W DC water heater and all I'm really wanting to do is to use extra solar to power it, (-only if and when) my Tesla batteries are fully charged or almost fully charged. - I'm talking about utilizing the extra power that the solar panels don't bother to produce while the batteries are in float charge mode.

Simple plan:
Program the SmartSolar MPPT relay output to turn on when battery is at float and use that output to control a Solid-State Relay that is connected to the water heating element.

I guess my questions are:
1) Do I get to use the maximum available solar panel wattage into the DC heater while the controller is in float mode?

2) Micro-cycling lithium batteries = bad? (or) does this consideration even apply in my case? -Controller may (or may not -depending on Victron operation logic) be going in and out of Float possibly dozens of times per day?

3) Why do some people seem to need some sort of PWM output from the MPPT controller to achieve this? - is it that the SmartSolar only puts out its full power during Bulk and the aim is to try to keep it in bulk mode while powering the heater?

4) I have a BMV-712. Should battery State of Charge be a part of this consideration?

Please let me know what you think.


brinx38 asked
lucode edited ·

3 Answers

Data logging over BT from MPPT controller?

Once connected with Victron Connect, the Android app shows instantaneous data and keeps a history but there's no evident way to download that data (power, voltage, current over time). The Windows app can save the data but it cannot connect via "smart" Bluetooth. I've searched manuals, forum, etc. In this very simple system (nothing but panels, an MPPT charge controller, and a battery, no CCGX), is there no way to log the data? Thank you.

dspectrum asked
spirou answered ·

1 Answer

150/100 smart solar history issue

I recently started setting up an off grid system dedicated to run certain loads at my house and set up a 12 volt system. I have 2x multiplus 3000 va inverters wired to 4 Battleborn batteries, a bmv 700 series, and 2x 150/100 smart solar ve.can mppt controllers. I have everything set up except the solar wiring but have noticed that one smart solar history graph is showing current max and min battery voltages (sitting around 13.5 volts since that is the float I have programmed on the inverters until the solar is wired up) and the other shows a min of 0 volts and a max of 655.35 volts. I have tried powering down the mppt, resetting the history, and resetting to default but it keeps showing incorrect voltages. Both of these are connect to the bmv via the Bluetooth smart network too. Anyone have any idea as to why this is happening?



edphonse asked

0 Answers

Is there a way to limit Maximum PV voltage to controller?

I have a 100/20 Smart Solar controller and only 2ea 100w panels. I want it to operate at full capacity by adding panels. Due to conditions on my property I need a longish cable run from my panels to the controller. High current and long runs seem to be expensive due to the cable thickness required. I want to add enough panels, in series, to get close to 100v but am worried about damage to controller. How can I “over voltage” the panels and reduce that voltage at the controller. For example, I envision a voltage limiter of some type. Say feed 150v from panels in and get 100v max out to put into controller. Is such a thing possible? Also, why is the PV input voltage so low for the controllers? Sorry for my ignorance, and thanks for the explanation.


maxxmanic asked
wkirby answered ·

1 Answer

BMV-712 with VSR and starter battery


I have solar panels charging my ‘house’ battery with BlueSmart controller. I also have a ‘start’ battery connected to the system with a bi-directional VSR. Everything seems to be working ok. As I understand it, VSR combines batteries when either battery reaches 13.7v and disconnects at 12.8v. Solar prioritises ’house’ and alternator prioritises ‘start’ as I would want. My BMV is monitoring ‘house’ including temperature.

My question is whether I need to change my BMV or SmartSolar settings in any way to account for the ‘start’ battery. Both AGM with identical charge voltages, but very different capacities 125Ah vs 26Ah. At that moment I’ve based all settings on just the ‘house’ as if ‘start’ didn’t exist.



markcx asked

0 Answers

I am just beginning and want to use solar in my tiny house.

I have no idea what I am doing. Can I use a different type of battery brand with a different type of solar panel system brand? I need all the help anyone is willing to offer.

jessica-hounshell asked
Guy Stewart (Victron Community Manager) answered ·

3 Answers

two MPPTs in parallel - does the app account for this?

If I were to run 2 x 100/20 MPPTs in parallel, both for the charging to batteries AND for the load outputs, do they communicate together and comgine the data that appears in the victron app, namely the history, yield data and consumption data? or do I have to manually double the stats for actual charge/load figures?

adev asked
Guy Stewart (Victron Community Manager) answered ·

2 Answers


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