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Battery Sense will not pair

Hello All,

Have the latest app version (v5.5) and will not pair to Battery Sense HQ2039QMWUI with my Samsung Galaxy S9. Will pair through BT phone settings but will not through app. Have followed troubleshooting guide (unpaired, restarted phone) but nothing works.

Please advise

bruizer-man asked
bruizer-man edited ·

2 Answers

Low Battery Alarm - MK3 Settings Screenshot

Hope all is well , purchased a second hand multiplus , installed and got a "low battery" flashing led , purchased an mk3 connect , settings are normal and should not be causing such an alarm. Any ideas? It seems like the multiplus is reading the correct voltage at 13.3 , the low voltage dc alarms are set much lower , pls help


Adam Hanafi asked
Paul B edited ·

2 Answers

Email address to send a service report

What's the email address to send a service report? Clicked the link inside the app to create using Yahoo mail, it attached the report.log but it did not enter the address to send it.

bruizer-man asked
Thiemo van Engelen (Victron Energy staff) answered ·

1 Answer

UK Installer List

Hi, New to the group. How do you find an Victron installer/engineer in the UK please. North West England ideally.

Thanks, Clay

manicorganic asked
manicorganic answered ·

2 Answers

Need help with wire calculation regarding 120mm2

Hi all,

Im designing the electrical of my campervan, and im having trouble with the wire going from the busbar (positive and negative) to the battery. According to calculations the cable should be 120mm2. But that seems so bulky for me.. Could anyone help out? Thanks.


14129 asked
14129 commented ·

3 Answers

How do I regulate the charging current? / Wie kann ich den Ladestrom regulieren?

Hello currently I have 8x 280Wp panels a Multiplus2 and mppt150/70 as batteries I have 2x 12v 230Ah AGM batteries connected to 24V. Now I would like to expand my system by 20x 250Wp panels. I would connect these with 2x mppt 100/50 but I wonder how I can limit the charging current but still use full power on the multiplus.

Glad about any help.

Greetings MrYoshii

Hallo aktuell habe ich 8x 280Wp panels einen Multiplus2 und mppt150/70 als Batterien habe ich 2x 12v 230Ah AGM batterien zu 24V verbunden. Nun würde ich gerne mein system um 20x 250Wp panels erweitern. Ich würde diese mit 2x mppt 100/50 anschliesen nur frage ich mich wie ich da denn ladestrom limitieren kann aber trozdem volle leistung am multiplus verwenden kann.

Freue mich über jede hilfe.

Grüßse MrYoshii

mryoshii asked
mryoshii answered ·

3 Answers

Generator auto starts everyday at same time - SOC momentarily drops to 0% on Venus - battery BMS does not show this SOC drop

Good Morning,

I basically an off grid system - 1x8kva quattro, 3x7.2kw Solar MD batteries, 11.5kw PV array, using a venus - has a 14ka genset for backup - there is utility available - but only used in rare circumstances - so is isolated off.

Since 19th September - each day around 13:14 to 13:24 my genset will start, run for 5 minutes and switch off.

I have enabled the genset to run under 2 conditions

[1] SOC drops to 15% - Start | SOC reaches 40% - Stop | AC1 returns - Stop

[2] The inverter load is 6000W for 30 seconds - Start | the inverter loads drops to below 4000w for 30 seconds

on both the minimum run time is 5 minutes.

Battery monitor is set to automatic - has selected the Solar-MD bms on CAN-bus

When the genset automatically starts - the reason given is SOC

I have looked into the advanced page of the setup - it will not indicate the SOC has dropped below 80% - however on the dashboard historical data shows it does drops to 0%

Have looked at the battery BMS - SoalrMD have a very accurate logging system - SOC not shown to drop below 80%

My main query is the timing - it is the same time each day + 1 minute.

Any help would be great.

have looked for gremlins - haven't seen the furry guys yet.

Alex Rodgers asked
Alex Rodgers edited ·

0 Answers


PN OR|121222110

I need the manual on how to install this.

Is there a way to add bluetooth to this?

charles-vretis asked
Matthias Lange - DE answered ·

1 Answer

Victron Quattro 10KW delivering only half rated power

I have dual Quattro 10kva/120s in split phase. We are 'off grid' and have exactly 20kva solar input available using enphase micro-inverters a/c coupled to AC-OUT1. For the battery storage we have 110KWH of lithium ion batteries. These feed the inverters via a Lynx 1000amp bus system with 4/0 cables going to the inverters. Quattro firmware is 430.

When the sun is shining, I have plenty of power available, no issues whatsoever. We can routinely run 15 to 17000 watts of electrical load and STILL charge the batteries at 100-150 amps DC. No thermal or overload issues at all.

However, once the sun is down, if loads go above 10000 watts for any length of time L2 gets a temperature alarm and shuts down the system. This is most frustrating. Our entire farm is on this system, including AC, water heater, well pump, etc. At time of shutdown the Color control shows 4900 watts draw on L1 and 5010 watts draw on L2.

Our A/C draws about 20 amps (240v) when running, which is right at 100 amps of dc.

Throw in another load, such as charging one of our EVs at 20 amps (240v) and the system will only run for between 10 and 20 minutes before we get the dreaded:

VE.Bus System Automatic monitoring Temperature L2: Alarm 2021-06-16 20:06:37 1m, 15s

appears and the inverters shut down.

MOST annoying.

We are using a 1000 amp Lynx system with two sets of 4/0 battery cables to the Quattros.

Cables are matched for length and size.

What can be done to increase my available power when running on batteries?

jlportman3 asked
Alexandra edited ·

2 Answers

Why vrm not showing connected devices?

Hello, I am sorry if someone question that. Today, I saw that again. When I open FRM APP to see battery percentage and with how many watts charge PV, I am not saw PV, battery and invertor consummation. I am using Raspberry Pi 3b plus version to run VRM. I reboot device from VRM Remote console, and after reboot all show up. How to fix that? I am connect raspberry pi power supply to invertor, can that is the problem about that.

My setup is 2x PV solar panels, mppt charge controller 100/30, invertor Phoenix 24/800 l, smart shunt 500, two batteries and raspberry pi3b plus.

Thanks for answer in advanced.

hrischo asked

0 Answers

250/100in float not fully charged

why would it say its fully charged when its not, im thinking about changing the abs to 5min now its does 1 min i have lithium batts not lipo4 real lithium

kevin-b asked
Alexandra edited ·

2 Answers

Why not show me real watts AC Load on VRM

Hello, today I setup my solar system and I saw that. I have connected raspberry pi for Venus OS and monitoring and consummation is 13w. My question is why that 13w not showing in AC Load? But when I connect other consumator like 200w I see that 200w in AC Load.

Thanks for advanced.

My system is 2x445w solar panels, invertor Victron Phoenix 24/800, smart charger controller Victron 100/30 l, smart shunt 500 and two batteries.


hrischo asked
Matthias Lange - DE answered ·

1 Answer

Can monitoring the system out home

Hello, I have small solar system and I will install on my raspberry pi 4 Venus OS. But my question is when I am not at home can I view how many watts charge, consummation and etc? Thanks for advanced.

My system is 2x445w solar panels, invertor Victron Phoenix 24/800, smart charger controller Victron 100/30 l, smart shunt 500 and two batteries.

hrischo asked
hrischo commented ·

1 Answer

#1 device switched off -sometimes permanent

Hello all,

as you may know iam new to Victron (1 week now).

And unfortunately, I'm already getting a headache.

Besides all the minor problems (battery is discharged above the overcurrent limit, or not at all although I draw from the grid), I have since the beginning the problem that power outages happen from time to time. (Grid stays ok)

One time i had to manually turn down every Voltage (Bat + Grid) to restart the Multiplus.

I have 3 Multiplus 5k/48V

No alarm is recorded in the VRM.

Today I got the alarm "#1 device switched off" in Cerbo.

Since I have had several outages (about 2 per day), I set up a camera to film the Victrons.

What can I do here? No one was home, so consumption was very constant. There was no washing machine or dishwasher running or anything like that.

The battery was full and not in use.


FW Cerbo (Venus OS) : 2.72

Multi 2 : 482

The Inverter with the LED Code swaps always. Sometimes L1 (Master), sometimes L2 or L3.

Sorry for the Cablemess- i changed everyCable to nail down the Problem.

marv21 asked
shaneyake commented ·

3 Answers

VictronConnect App will not pair with MPPT 100/30

I've rebooted everything, got rid of, and then reinstalled the app. Turned off and on bluetooth. But when I try to pair with controller over bluetooth I get the same message "cannot connect" I've tried everything in the trouble shooting manual! The professional I bought the used system from says "it's a mystery" and Victron says they don't deal with end users. And the solar doesn't even show up in my devices list (just the controller). Can anybody help??? TIA I'm using an iPhone 11.

mora asked
Thiemo van Engelen (Victron Energy staff) answered ·

5 Answers

Can I use a charge controller on a solar generator to regulate voltage

I'm guessing a lot of you are familiar with the term solar generator? An all-in-one lithium battery pack with an inverter, converter, solar charge controller, and numerous inputs and outputs.

I have quite a few of them and they all have different specs when it comes to charging from solar. I'd like to max out my solar array for the largest one which has a 48 volt battery bank and a 150V/12A max DC input but then I'm unable to use that same solar array for smaller ones. Some of which are wired for 24 volts.

If I wired in an additional victron solar charge controller like the 150/35, would I then be able to use the same solar array for the smaller solar generators? The smaller ones have a maximum VOC of 25.

curb71 asked

0 Answers

250/100 float

why would the float green light be on when your not at float volts?

kevin-b asked
rickp answered ·

1 Answer

Multiplus flashing leds not in toolkit

Hi everyone, I have some weird LED flashing on my multi + 3000 while trying to program with MK3 USB adapter. after that series of light stop splashing it goes to these solid LEDs. Any idea what's going on? Dealer isn't sure either? We walked through each step one by one. I also can't connect to Veconfig or veconnect. Leaving for vacation on the 9th.


l33der asked
jbmobile303 commented ·

0 Answers

200ah 12v lithium smart battery + dc-dc charger

Hi All,

Does the 200ah 12v lithium smart battery require a dc-dc charger if you're also connecting it to the 200/12 BMS?

It doesn't show any requirements for a dc-dc charger in the installation manual.

Thanks in advance


radnesas asked
radnesas commented ·

1 Answer

Full 4wd 12V system install help

Hi all,

I'm looking to install the following into my 4wd. I purchased it all separately without thinking if all the components went/worked together or not.

200ah 12.8v lithium smart battery

BMV 712-smart monitor

BMS 12/200

Phoenix Smart Inverter 12/2000

Smart Solar MPPT 100/30

I cant find any specific instructions that tell me things such as where the smart monitor is installed when also using the BMS.

Can anyone help with that along with other build specific questions? Victron don't have a very good support network from where I'm from unfortunately.

Thanks in advance


radnesas asked
radnesas commented ·

1 Answer

Color Control GX making noise

I got my Color Control GX hooked up today and I noticed it makes a constant noise. I wouldn't call it a buzz. More like a muted white noise. Or maybe the sound of a loud speaker being but not playing music yet. Its not crazy loud or anything but you can hear it when close to it.

Is this normal?

showtime3 asked
nigelfxs answered ·

5 Answers

What makes the most sense for my bus conversion build?

Howdy! I'm looking for a little help as I've figured out the beginning and end of my solar set-up but it seems like there's multiple ways to fill out the middle. I was originally piecing together a build based off of youtube but I like the idea of a mostly victron system where I can still cheap out on a couple of the components.

Here's what I'm working with so far:

  • 4* 400W solar panels (50.4V / 10.18A)
  • 24v Lithium battery bank

My panels are going to be wired in series so I've been eyeing up the EasySolar II since it seems capable of handling the 200v input from the panels. I will be using 120VAC and 12VDC in the bus so I need to figure out the best way to handle the 240VAC output from an easy solar II unit.

Alternatively, it seems like I could just get a 250|70 mppt solar controller and work that into a cheaper 2000W 24V inverter connected to a battery monitor and then the battery bank.

Will there be a 120v easysolar ii coming out? Is there a different product(s) that makes better sense for assembling my system?

Side question: how feasible/complicated/expensive would it be to integrate my 24v solar power system with the 12v system of the schoolbus?

Thanks in advance for any insight!

Matthew Woods asked
Vance Mitchell commented ·

2 Answers

How to upload picture to the community?

Before i ask my main question i cannot see how to upload pictures, IT is not my thing. thanks in advance

busdennis asked
Ulrich answered ·

1 Answer

Multiplus shuts down when trying to use Air Conditioner 24/2000/50

Hey all,

I just setup my Multiplus 24/2000/50 Compact and all seems to be working fine until I tried to turn on my AC.

while leaving the Multiplus in “on” position and plugged into 30amp shore power I turned my AC on and the surge when the compressor turned on made the multi shut down.

I have had my rig parked in the same place for the last 4 months and have had to run my Air con a few times before I setup the Multiplus.

I also tried to run it while my generator was running and that didn’t work either. But I used to run my Air Con off the generator no problem before.

I do have to switch on the “weak AC” setting to get the generator to work but still won’t allow the Air Con to work.

Should I be running the multi on “pass through”? (not sure how to set that yet)

Do I have something wrong in the settings?

does the Victron only allow me to use 2000 watts when I am connected to shore power? (Doesn’t make sense to me)

My generator is 4000 watts and still doesn’t let it happen.

I tried it with everything in the rig off except the Air Con and it still didn’t work.

I am running a 24/2000/50 multiplus compact and a 24 volt 206ah prismatic battery set from LYNX batteries out of Washington state. The battery connections use 4awg wire. Battery is rougly 2 foot away from the multi.

Is the only way to make this happen is to get a soft start for the air con?

journeyoutloud asked
journeyoutloud answered ·

4 Answers

Multiplus -II frequency variation

Hy .

My friend has a system made from a multiplu-II 48/5000/70, mppt 150/100 and 19 solar panels of 300w , on the roof of his store , and a disel generator 2000w (he dosent have conection on the national network)

He has a house at 40m from his store but the cable of feeding the house has 60m between the house and the inverter . the problem is that when his water pump is starting (3000W) is making a power variation and a frequency variation very big :

-volt in faling from 230v to 180v for a second

-and frequency from 50Hz to 32 Hz for a second

and becouse of this variation the led lamps (8psc) has burn.

how can i help him to stabilize the variation

it is posible to and a (ups-with battery) stabilazer of 7000w near the house panel ?

please give me some ideas. Thanks.

apophis asked
apophis commented ·

2 Answers

How can I configure my MultiPlus without an MK3-USB adapter?

I'm in a jam and need to get my Multiplus charging my new lithium batteries ASAP. Solar panels not installed yet. Just got everything tested and working and connected batteries only to find out dealer did not inude the MK2-USB cable. I thought I could setup Multiplus va Color GX Controller / monitor or through the wifi dongle they sold me. Appears I can't, I have a USB to ethernet adapter my laptop. Is there anyway to hack or get this to work without the MK-2 USB cable. Need to get this going tonight (eastern U.S. time zone.) Thanks in advance.... MY main issue is to set the charging paramaters till I receive the cable which can't come soon enough. I also have some Raspberry PI 3 and 3+ if that will help.

jfro asked
seb71 commented ·

1 Answer

Help look over Multiplus 2 schematic - Reward

Hello everyone,

I need someone, who is very experienced with the Multiplus2, PVs, lithium Ion battery and Grid Connection, to look over my schematic in a zoom Meeting. I will give you 10€ as reward. Someone, who speaks german would be good.

Cansin Sari asked
Matthias Lange - DE answered ·

2 Answers

Multipass 24/3000 shuts down when disconnected from shore power

My Multipass 24/3000 was installed this past summer. Everything has been great until two weeks ago.

Recently, I went to use my boat and after unplugging from shore power, engines start etc. I noticed the breaker for the inverter was not illuminated, but the breaker was on and had not tripped. Before starting the boat, AC/DC panel showed inverter breaker operating and illuminated. The inverter is left in charge only when connected to shore. The color control GX showed no alarms or issues.

With the engines operating the port side steering was not functioning but starboard size was. (Boat uses jet drives with buckets and joystick steering). After a few minutes trying to trouble shoot, I started the generator and then the breaker switch for the inverter became illuminated and now both port and starboard steering began to work.

The alternators on both engine were replaced during the Multipass install and everything had been working without issue.

Summary: the Multipass 24/3000 only is working when connected to shore power or receiving generator power source. It does not work when the engine is running.

What am I missing that may cause this?

talaria asked
talaria answered ·

2 Answers

Heat Dissipation from the SmartSolar-MPPT-250/100

Dear All,

I am designing an Off-Grid Solar Power System to be installed in an ATEX Certified Boxes (SS 316, 25mm thickness, IP 65). The system will require 2 x MMPT 250/100 charge controllers installed inside one box (approx. 1200 x 800 x 300 mm) and running at an ambient temperature of 50 Deg. C.

I know that the charge controller will de-rate as the temperature goes up. what I don't know is what are the heat dissipation figures for these controllers and couldn't find it anywhere in the Victron literature.

karam-el-bayed asked

0 Answers

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