Temperature Sensor Image

Temperature Sensor

Die Temperatur wird in VRM nicht angezeigt --- was mache ich falsch?


in meinem Reisemobil wird die Batterietemperatur vom BatterySense-Modul mit VE.smart Networking an

- ein BMV-712

- zwei MPPT100/20

übertragen. Der BMV-712 und die MPPT's sind mit VE.DirectToUSB-Kabel an einem Raspi (VenusOS) angeschlossen.

Die Kommunikation mit VRM funktioniert prima. Daten werden übertragen und in VRM angezeigt.

Leider erhält VRM keine Temperaturdaten. Siehe nachstehenden ScreenShot:


Warum ist das so? Was mache ich falsch?

Ich hoff, dass Sie mir helfen können.

Mit freundlichen Grüßen


Nachstehend noch einige ScreenShots zu der Temperatur und der lokalen Geräte-Kommunikation:







gherzog asked
Matthias Lange - DE edited ·

1 Answer

MultiPlus 12/3000/120-50 120 Temperature Sense error and Battery Temperature alarm

I have an ongoing problem with what seems to be erroneous High Temperature alarms on the Multiplus 12/3000/120-50.

The unit details:

MultiPlus 12/3000/120-50 120V

Firmware version 475

Last connection 5 minutes ago

Product id 2702

VE.Bus connection VE.Bus

Hardware configuration Single unit

VRM instance 0

Things I've done to troubleshoot:

-- checked all terminal connections... everything is tight.

-- manually measured surface temperature of multiplus, which ranges between 20C and 30C.

-- upgraded firmware to latest version

-- temp alarm doesn't seem to have a pattern for which it gets tripped. When the alarm goes off, there doesn't seem to be excessive load on the system.

-- I observed that the fan on the unit does not come on and I thought it was a faulty fan. I added a large load to the system by turning on the AC unit when inverting and the fan promptly came on. So, I'm thinking the fan is working as it should.

-- the unit is installed in a bench seating area, which is enclosed. I thought ventilation was a problem, so I added 4 cooling fans and external ventilation, still received alarms.

Any ideas on what else to check?


Dave Herder asked
Michael Schmidt answered ·

2 Answers

(Thermal Runaway?) VE.Smart Network Support on Blue Smart Charger IP67

Pretty sure this was asked a few years ago but wondering if anything has changed...

Any chance of VE.Smart Network coming available to the Blue Smart IP67 chargers?

Could really use that actual Battery Temperature reading...on these cool sunny days right now the ambient temp of the charger outside in the shade and the temp of the battery in a black plastic box is quite a big spread after a big charge (88f vs 61f - I think..the Blue Smart doesn't actually show temp- Another feature request to display Blue Smart temp?)

This leaves the MPPT on the VE.Smart Network to think that we are overcharging because it has temp compensated the voltage down for the warm battery (its probably right) while the BlueSmart IP67 is doing the opposite and temp compensating up for the cool charger.

ghostrider asked
ghostrider edited ·

1 Answer

Temperature Sensor at BMV-702 shows only -16° ?!

Today I installed a BMV702 Temperature Sensor. The red cable is in B1 and the black one in B2 of the shunt. The setup in 69 Aux Input is TEMP. As temperature the display of the BMV702 shows only -16° .


When I activate STS - Get.Temperatursensor in DVCC I can see that the sensor was detected.


There is no other temperture sensor in use. I don't know what's going wrong. Please help me.

maha asked
maha answered ·

1 Answer

SmartShunt with Temperature Sensor and Starter Battery Voltages?

Hi all,

I am using a SmartShunt 500a with a Victron temperature sensor for my battery in a motor home. Now I want to monitor the voltage of the starter battery, too.

Can I connect the SmartShunt to the starter battery in addition to the temperature sensor? If not, what do you recommend?

The temperature is provided via VE.network for a SmartSolar MPP 100/50 controller. Also both are connected via VE.direct USB cable to a Raspberry Pi with Venus OS and 7“ touch screen.


p-rhodan asked
JohnC commented ·

2 Answers

Temperature sensor for water

Is there a temperature sensor for water with a connection to Cerbo GX?

ales-volopich asked
laurenceh commented ·

3 Answers

Can I connect the Victron temperature sensor directly to a Smartsolar MPPT?

I currently have 2 Victron MMPTs (a BlueSolar and a SmartSolar) along with a BMV-702 with the Bluetooth adapter. Given that I cannot connect the temperature sensor directly to the BMV-702 (as the plug is taken by the Bluetooth), is it possible to have the sensor connected to the Smartsolar MPPT and then thus share the temperature readings with the BlueSolar and BMV-702?

phemens asked
Matthias Lange - DE answered ·

2 Answers

Temperature Sensors for CCGX

How can I connect temperature sensors to my Color Control GX? These are not compatible with CCGX... https://www.victronenergy.com/live/temperature_sensors

Buying an VE.Bus Smart Dongle for each temperature sensor isn't reasonable... or? anyone found an good solution for this?

tomas-sailing asked
mike-g answered ·

2 Answers

Cerbo GX FW 2.60 Temperature detection Issue ?

Hi everybody ! I am running a STECA PF-166 freezer and want to have a report of its temperature. It does works nicely with the Victron Temp sensor model ASS000001000 , but when temperature goes below -20C, I'll get some kind of error "Status unknown" but everything is fine :


It could be a bug in FW 2.60 or simply that below -20C management has not been implemented.

Thanks, Michel

michelg asked

0 Answers

Lithium battery charging in Arctic expedition conditions

@Ur12VMan , @Daniël Boekel (Victron Energy Staff)

Hi 12VMan (and Victron staff please). I found your thread on Lithium battery protect settings while searching, but decided my comment should be a new question.

Thanks for your answer in that thread, mentioning that Victron lithium batteries issue a temperature alert at 5C. This gets my attention. My research to date was indicating that lithium batteries are OK for charging down to around 1C (and for discharging well below 0C, as an aside). I need to pursue this, as I'm planning to use Victron LiFePO4 batteries in Arctic conditions, in an expedition yacht that will be static for days to a week or two. Water temps will be down to around 2-3C, sometimes lower depending on icing. I'm looking into the need for heating for the battery box, which will be under the insulated floorboards and so outside of the primary heated spaces. If 5C is the real deal, I need to get serious with calculations on battery energy that might be consumed in making the batteries warm enough to be chargeable. Or other heating.

So, where is this 5C figure coming from? OK, I see +5C mentioned in the 12.8V LiFePO4 battery data sheet.

This prompts a few specific and important questions, about the Victron 12.8V 300Ah variants:

1. What is the lower internal battery temperature at which the battery signals to a connected BMS that charging is not permitted?

2. If the answer to Q1 is different than +5C, what is the consequence in terms of battery health (and charging efficiency?) of charging occurring between the two temperatures?

3. Does the answer to Q2 depend on the rate of charging?

4. If the internal battery temperature is just high enough for the battery to allow itself to be charged, and in this case at a low rate of 20A per battery (80A from a normal alternator, shared between 4 batteries), will this charging slowly warm the batteries up such that a higher rate of charging can be initiated in due course?

5. At what battery temperature (measured by a sensor on the positive terminal, or is there a way to get the internal temperature?) can high rate charging at ~150A per battery be initiated, such that no appreciable damage to battery health occurs? Would it be prudent to step the charging rate up slowly as the batteries warm up?

Clearly, it will be helpful if I rig a temperature sensor for the battery box, to guide appropriate action before each charging session.

The boat will use an Integrel On-Engine Charger (basically a big and very efficient second alternator) which can charge at up to a very high rate. Or it can be turned off so that charging is via the engine's standard alternator only. I might need to raise the battery box temperature before starting to charge each week or so. Heat from the main engine during these charging events will then help.

Thank you for your help with these questions. :-)

valden asked
michelg answered ·

5 Answers

VE.Bus Smart Bluetooth Temperature overrides Venus GX Temperature

Yesterday I added the VE.Bus Smart Bluetooth dongle to my Quattro and noticed that the temperature from the dongle overrides the already connected Venus GX with Temperature probe.

My setup is Quattro/Venus and BMV. I have two temperature sensors, one connected to the Quattro and one to the Venus (don't ask).

Anyway, when I plug in the VE.Bus Smart dongle it seems to override all others but the documentation doesn't state in so many words that it will or won't do that, it only talks about voltage sensing.

Can anyone explain how I can ignore the Smart Dongle's temperature sensing as the device is NOT attached to a battery case?

Edit: The following is NOT happening in this case.



Ingo asked
Ingo commented ·

1 Answer

BMV 712 alternate connection accuracy ?

There is no connection point on the pos terminal of the Lithionic batteries in my system. I would like to use an accurate temperature readout as my batteries are in an unheated building and we have cold temperatures in the winter. I will connect power from the buss and run a 2' wire to the ring terminal of the temperature sensor so I can tape it to the top of my battery. My question is : will this extra wire length affect the accuracy of the temperature sensor ?

toolik asked

0 Answers

Why do I get "reverse polarity" when connecting a PT100 temp sensor to Cerbo GX?

I'm planning to connect several temperature sensors to my Cerbo GX to monitor engine room temperature, fridge, freezer and sea water. However, when connecting my first PT100 element to my Cerbo, it only states "Reverse polarity" as status and no temperature. I have checked the PT100 element, and it works well. I have also tried to switch polarity on the connectors, but still it does not work. In the status it also states 4,2V, which is strange as it should state resistance. Any clues?

trulsla asked
wkirby commented ·

2 Answers

Victron Multiplus Temperature light blinking when cold
Hello All!

I have a multiplus 2000 and the temperature light is blinking on the remote control. The batteries are cold, the fan not running on the multiplus, all lights on multiplus look normal.
This happens when on generator and shore power, and when not using either. Not getting a response from victron. Any ideas?

Also, I'm currently connected to shore power with the multiplus OFF. Not sure if that's bad for either the batteries or the victron?

optout asked
Dave Herder commented ·

0 Answers

Multiplus II 5kVA showing temperature alarm on LED display

As of yesterday evening i noticed that my units fan seemed to be running more often than before. This morning when running the geyser (about 3.5kW) i noticed that the red temperature LED came on after a few minutes. It has never done this before and i never had any issues heating the geyser with this unit before.

As soon as i switch off the load (or pretty soon afterwards) the warning LED goes off again. The fan is running hard when it does this but unit does not feel 'hot' to the touch although the air coming out of the unit seems a little warmer. Ambient temperature is about 20 degrees. Nothing that the unit hasnt seen before.

All signs point to some sort of overheating, i think. Would there be anything i can do/check myself or do i need to get the installer involved? Any suggestions?

dustdevyl asked
Dave Herder commented ·

2 Answers

MultiPlus: Disable Charger based on battery temperature

I'm currently building an RV off-grid system based around a Lithium Tesla Battery and MultiPlus. In the system is also a BMV 702, BatteryProtect 220 and Color Control.

As the Lithium Battery really doesn't like to be charged below freezing temperature I'm planning to have an automated heating pad that keeps the battery warm, but I would like to have a fail safe which disables the MultiPlus Charger whenever the temperature of the Battery reaches 5°C

My current setup is to connect the BMV-702 Temperature Control Sensor to the Battery and then connected the BMV-702 Relay to the MultiPlus AUX1 which controls the Charger via the Charge Assistant. This works nicely, but I was wondering:

1. The MultiPlus already has a Temperature Sense Connector plus the Temperature Sensor shipped, when I measure the voltage of the Temperature sensor I get a reading of 2.6V at 25°C. Is there any datasheet of the Temperature Sensor that I could use to configure the MultiPlus Assistant for temperature? I would really like to not depend on the BMV for the temperature measuring and best have the MultiPlus measure the temperature directly.

2. I found the new Shared Temperature Sense feature of the Venus/ColorControl: https://www.victronenergy.com/blog/2018/10/17/venus-os-v2-20-scheduled-charging-equalize-and-more/ which mentions:

the Venus-device will send the battery temperature to the connected Solar Chargers and Inverter/chargers.

But I don't see anything in the MultiPlus Configuration Screen to do anything with that Temperature or any other way that it actually receives the temperature form the Venus/ColorControl.

Plus just two other small questions:

1. Is there any way to see the current voltage reading on the MultiPlus AUX inputs? I'm having a bit a hard time to find the correct voltages to use in the Assistant

2. When I disable the Charger in the VEConfig all together, but then enable the Charger again via the Assistant based on the AUX1. The charger is actually running! That's a bit scary ;) Also which charge settings are used? I assume just the last settings of the charger before it was disabled all together?

schnitzel asked
betz commented ·

2 Answers

How do you rename temperature sensors in the Cerbo and VRM?

I have got the temp sensor installed and data is showing, however I can't figure out how to rename "temperature sensor [xx]" to something useful/identifiable. I plan to use all 4 temp inputs, so I'll need to be able to identify them.


miami337 asked
Guy Stewart (Victron Community Manager) answered ·

1 Answer

Internal Temperature Sensor of a SmartSolar Charger MPPT 100/20


I've installed a SmartSolar Charger MPPT 100/20 and a BMV 712 smart and a LiFePo4 Battery in my Boat.

The SmartSolar Charger MPPT 100/20 has an internal temperature sensor and I'am wondering if this will be enough to stop charging when it's coulder than 05 degrees temperature outside to not harm the litium battery.

My dealer said that should be enough. Is it true or does it require an aditional smart battery sense?

Thank you!

cedrock asked
cedrock answered ·

2 Answers

What Temperature sensor can I use with the Cerbo?
  • Hi, is there available information on what type of temperature sensor can be used on Cerbo? Thanks Knut

knut-vidar-paulsen asked
justmurph commented ·

3 Answers

configuring smartsolar 75/15 with 2x Multiplus 3kva/120; temperature sensors; inverter overloads

Greetings, this is my first post here, so hopefully this does not reveal me to be a complete moron. I recently set up a power system (VRM link) in my fifth-wheel camper consisting of the following:

2x 300 AH Victron Smart Lithium batteries,

2x Multiplus 3kva/120 inverters in 120/240 VAC split phase,

2x SBP-220s (one as a load disconnect and another as a charge disconnect, as there are multiple DC charging sources),

6x Smartsolar 75/15 MPPTs with a 200w/24V nominal panel connected to each,

Orion-Tr Smart 12|12/30 DC/DC charger,

BMV-712 with shunt,

VE.bus BMS, and

Cerbo GX with GX Touch 50 display

(I've included a picture of the system as well as a rough diagram of the connections as well -- I know the mounting of the MPPTs looks suspect but there is a large circular hole drilled in the plywood behind each for ventilation, and there are about three inches of clearance between the plywood and the ceiling above it)

The MPPTs are connected to a USB hub which, in turn, is connected to the Cerbo. Everything seems to be recognized just fine and I can see all the system parameters in both the Cerbo's menu and VRM. DVCC is enabled (see screenshots below).

I have the following questions:

1) The MPPTs' charging states did not appear to be exactly synchronized, so I set up a VE.smart network between them. Then later I learned about DVCC and enabled it. What is the proper way to synchronize the MPPTs (and the inverters and Orion charger, if possible) in this configuration? As you can see in the VRM screenshot the inverters and the MPPTs are not in the same charging state. Did I screw this all up?

2) I do not have a temperature sensor currently installed, because I assumed that since the batteries measure their temperature internally that they would report this information to the BMS which would, via VE.bus, communicate it to the rest of the system. But now that I've looked at the cables I see that that there are only three conductors between the batteries and the BMS; perhaps one is ground, one is charge disconnect, and the other is load disconnect. I have the temperature sensors that came with the inverters but I do not have the one that is compatible with the BMV (https://www.victronenergy.com/accessories/temperature-sensor-for-bmv-702 ) -- is there an advantage to getting the latter or should I just use one of the inverter sensors? Is there some other/better way to do this?

3) One of the goals for this system was to be able to function as a UPS for two 15 kBTU/hr air conditioners (one on each phase). The inverters are currently set up with "switch as group" unchecked because the trailer will sometimes have a 120/240 VAC connection and at others it will only have a 120 VAC (i.e., zero line-to-line voltage) connection. In this configuration with "UPS function" disabled, if I have the two air conditioners running and cut the AC input, both inverters will throw an overload. What then seems to happen is they make attempts to restart at 30-second intervals, and generally on the third attempt they're successful and the air conditioners start back up. If I instead enable "UPS function", I can cut the AC input and the inverters will maintain power to the air conditioners without interruption. However, in this case, the system will not recognize single-phase 120 VAC input so even when such input is connected they will continue inverting. They will only recognize the 120 VAC input if I disable "UPS function", but then the overload problems occur. What's bizarre to me is that whether "UPS function" is enabled or disabled, if I am running the system without AC input (i.e., inverting), I can start both air conditioners without overloads. The overload only occurs if the air conditioners are already running when the AC input is suddenly cut and "UPS function" is disabled. I have used a multimeter to measure the DC voltage difference at the batteries and at the inverters when I cut the AC input with the air conditioners running; it does not get even close to the "DC input low shut down" value, and there's no perceptible voltage difference between the batteries and the inverters (i.e., I don't think it's due to poor connections -- and all inverter and battery cables are 4/0). Is there a way to get the fast-switching that seems to prevent the overload from occurring while also retaining the ability to use 120 VAC and 120/240 VAC inputs interchangeably?

Any thoughts on any of the foregoing questions (or general comments/recommendations on the configuration or layout of the system) would be most welcome (I know the wiring is a bit of a mess; still finalizing things). Or if you're just generally facepalming at this setup please let me know that as well -- I'll take harsh feedback over burning up $15k USD any day!






jersey-dirtbag asked
jersey-dirtbag edited ·

0 Answers

Can the Multiplus Provide the shutoff temperature to a SmartSolar MPPT charger or Is a BMV required?

I plan on installing a Multiplus 3000 and an SmartSolar 100/30 MPPT charger. The internal BMS of my batteries does not provide low temperature cutoff. As such, I was planning on installing a temperature sensor for the purposes of monitoring when the batteries are too cold to charge, and connecting it to the Multiplus. Can the Multiplus share this temperature directly with the MPPT controller if I set up a VE.Bus network? I do not plan on using a Victron BMS.


kafolske asked
wildebus answered ·

2 Answers

How can I connect an external temperature sensor to the CCGX Color Control?

dear all,

This demand is urgent pls!!!!

we have installed victron solution, which is use for a online monitoring of a telecommunication site here in nigeria. our clients are demanding they want to monitor the actual room temperature of the equipment room, instead of the battery temperature. based on this demand i will like know if there's any way to integrate an external temperature senor on the color control to capture and display the ambient temperature of the on the VRM portal or probably change the battery temperature display on the VRM portal to Ambient Temperature.

sikiru asked
handy answered ·

2 Answers

Band new Bmv-712 not showing temp correctly.

Hello Victron Community

I have a problem,.. I’ve been searching through the VC forum for the last couple of days and can’t figure out how to get the temp on my BMV712 I just bought. the temp censor wires that come with it just don’t seem to be working at all.

I’ve connected the cables with the temp censor on to the positive terminal and im now getting a read out of -1 degrees c. I’ve changed the misc setting to. Aux/temp and still no change. I’ve got a lifepo4 system and don’t want to change my battery with the terminal temp registering that so I got my wife’s dyson Hair-dyer our and heated the terminals where the censor is on the possible side to see if the temperature will read but no luck. I’ve changed the fuses over to 1a blade fuse, as some other people advised on this forum. Some others on here say I need to buy the smart battery sense but seems pointless when it’s part of its basic function.

Any help would be great appreciated.


Ben Johnson asked
Rob Fijn answered ·

7 Answers

Cerbo GX temperature input To monitor Battery temperature for multiple lithium chargers (MPPT, AC, buck-boost)

Hi. I’m building a system around Cerbo GX and want to monitor the battery temperature of my lithium batteries to switch off the MPPT or AC chargers when the temp is too low. Can I use the simple Victron temperature lead connected to the Cerbo GX temp input to disable charging? Or do I need to get the Smart temp sensor and create a VE Smart network to achieve this? and can I use one temperature sensor to switch off AC and Solar chargers, or do I need separate temp sensor for each charger? I also plan to add a DC-DC buck boost charger, and need this to also switch off on low temp. How can I also achieve this through the Cerbo GX or do I need the Ve Can temp sensor?

georgejt asked
georgejt edited ·

0 Answers

Temp sensor cable length / extension ability

I wish to add some temp sensors to my Cerbo GX. I understand I need part ASS000001000 . I cannot see any details for length of included cable - does anyone have this to hand ? Is it possible to extend the cable by a couple of meters without altering the recorded temperature too much?

With thanks,

Dr Richard Williamson

drw asked
drw commented ·

2 Answers

Is it possible to install the temperature sensor on the negative pole?

Hi. Following case: I’m building a lithium battery with Thundersky cells. On the plus pole there will be the bms (ecs lipro).
For my BMV-712 I need to install the temperature sensor...so there are two points I’m not happy with.

First, the temperature sensor is quite big, so maybe I’m running out of space ;)

Second, because it is not an active balancer the bms turns power to heat, so I think the probe would not provide valid data.

So my question is, could it be a possibility to install the sensor on the negative pole and just use the black wire to the temperature input on the shut? Another wire would deliver the +12V to the shunt...

thank you for supporting me!

Yours, Christian

Christian Lindermann asked
klim8skeptic answered ·

3 Answers

SmartShunt + Temperature Sensor wiring [SOLVED]

Our SmartShunt 500A is working GREAT in our 2011 Winnebago View 24K RV with dual 6V 232Ah Energizer flooded cell "golf cart" batteries connected in series. Our SmartShunt was installed per Step 5 of Victron’s Quick Install Guide with the (RED single wire with fuse) power cable connected between the positive battery terminal and the SmartShunt Vbatt+ terminal.


HOWEVER, I want to add a Victron Temperature Sensor for BMV-702/712 (Part Number ASS000100000) but need answers to these QUESTIONS:

1. Do I REPLACE this RED power cable that's inserted in SmartShunt Vbatt+ terminal in Step 5 with the RED wire of the Victron Energy Temperature Sensor for BMV-702/712 (Part Number ASS000100000) shown in Step 8 that I also purchased?

OR do install BOTH the (RED single wire with fuse) power cable that came with the SmartShunt shown in Step 5 AND the RED wire of the Victron Energy Temperature Sensor shown in Step 8 into the SmartShunt Vbatt+ terminal?

2. IF I ONLY install the RED wire of the Victron Energy Temperature Sensor into the SmartShunt Vbatt+ terminal, HOW DO I REMOVE the (RED single wire with fuse) power cable I inserted in Step 5 from the SmartShunt Vbatt+ terminal? I doesn't seem to want to come out, even by inserting a paper clip into the small hole adjoining the SmartShunt Vbatt+ terminal.

Please answer BOTH the above questions at your earliest convenience so I can install the Victron Energy Temperature Sensor correctly.


brokerdon asked
brokerdon commented ·

1 Answer

Phoenix Multi 12/1600/70 with 15xxxxx firmware


I have a Phoenix Multi 12/1600/70 which has 15xxxxx firmware (1501116.HEX). I know it is old, but it appears to be working well (I don't really want to replace it!) However, I would like to connect to it with ve.config, or any other application which might allow me to configure it and/or see its parameters. I have looked at the various manuals and whitepapers, but remain a little confused!

I would very much appreciate it if someone would answer the following questions:

1. Which RS485/RS232 interface would work? I believe it should be the Mk.2.2b, but I would like to make sure before I purchase one.

2. Which software should I use? I believe ve.configure Version 1 (although I can't seem to find Version 1 for download). Where can I find a download of ve.configure Version 1, or is there any other software which would connect?

3. Which remote panel would work with it?

4. Presently, there is no temperature sensor connected. Presumably, the temperature sensor currently sold for Phoenix chargers, which connects to the -ve pole of the battery, would be the one to go for, but is this correct?

Thanks in anticipation.



johnm asked
Wayne answered ·

3 Answers

ASS000001000 temperature sensor range

What is the operating range of the ASS000001000 temp sensor for the Venus GX? I am wondering if it can be used to monitor alternator temperature (up to 130° C).

mike-g asked
mike-g answered ·

2 Answers

Venus GX with EasyPlus 1600 and BMV 702

Hi All

Help please...

I have a Venus GX - with BMV and EasyPlus 1600. All connected together by VE.Bus and VE.Direct. All working great - no issues.

My question is about temperature sensing. All 3 devices have a temperature sensor cable - which device, in this set up, should have the temp sensor attached ?



miya asked
stefanie commented ·

1 Answer


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