ESS is not selling excess PV to the grid, while it is charing the battery.


Two Quattros 10K-120V- setup in SplitPhase, ACin1 has a generator, ACin2 has the grid

Four MPPT SmartSolar 150/100 controllers with a total of 14 365W panels per string.

Large 1400Ah Lithium Battery managed by Batterie's internal BMS that communicates with Venus via CAN-BUS. The BMS is a REC-BMS.

Venus is configure:


Mode:Optimized without BatteryLife

Grid metering: Inverter/Charger

Multiphase regulation: Total of all phases

Limit inverter per:OFF

Grid setpoint: 0W

Grid Feed-in:

AC-coupled PV:off

DC-coupled PV : ON

Limit system feed-in : ON

Max feed-in: 15000W

Scheduled charging: Disable



1- System will curtail the PV been generated to match the sum of the AC-load plus the BMS requires to charge the battery. When it should produce as much PV as it can and sell to Grid all that is not needed by the BMS to charge the battery.

2-Once the BMS has reached 100% SOC it sends parameter to Venus to charge at 1A, the system does not pay attention to it and send at least 20 to 50A, but now starts to allow the PV to produce the maximum PV and sells to the grid. Any variations in the AC-load make the battery charging amps to spike to up to 100A, at which point the DC Volt also rise to 65VDC. The batteries BMS send a voltage high ALARM and it it happens several times, the BMS goes into protection mode and disconnects the Battery. this also triggers an alarm38 in the Smart Controllers disabling them, and requiring a full disconnect.

Carlo asked
warwick answered ·

1 Answer

Generator Input not showing on VRM Dashboard

I recently installed a Multiplus 5000VA 230V. On my AC Input I have the generator as my source. In my VenusOS settings I set the Generator as the power source for AC Input 1

On all my dashboards for the Venus OS it correctly recognizes the Generator power and displays the correct data. However on VRM that data is not being shown or reported? Any thoughts?



Raspberry Pi 3B Running VenusOS v2.62~2

hummingbear asked
hummingbear commented ·

2 Answers

BMV-712 app asking me to "unbond

I purchased a camper van with Victron solar system. The BMV-712 needs a new PW - I entered the PUK# but now it is asking me to "unbond" and the little video tutorial is no help to me. I appreciate any help!!!!

sandylee asked
rodneyab commented ·

1 Answer

SmartSolar Charger 150/35 - still experiencing zero output issues after firmware 1.53 and 1.54 updates


After updating the firmware on my 3 SmartSolar 150/35 devices from 1.51 I have been experiencing issues where the PV power drops close to zero. In some instances the situation rectifies itself other times I need to disable/enable via the VictronConnect app. I saw there was an issue with the 1.53 firmware and hoped the 1.54 firmware would rectify the situation but unfortunately the issue still persists. Today device 260 was off for 2 hours before I disabled/enabled it via the app.


  1. Quattro 48/8000/100-2x100 - firmware 469
  2. 4 x Pylontech US3000
  3. 3 x SmartSolar 150/35 - firmware 1.54
  4. 2 sets of 6 x JA Solar JAP72S01-330/SC
  5. 1 set of 6 x JA Solar JAM72S01-380/PR
  6. Venus GX - firmware 260



Is Victron aware that some devices still have this "drop out "issue even with the 1.54 firmware?


jkkm asked
jkkm commented ·

1 Answer

Battery cables/fuse for Victron LifePO4 Smart and Multiplus 12/3000

Just getting started here, so apologies in advance if the answer is obvious. The Multiplus manual suggests double 50mm cables and a 400A fuse on the main battery connection. If I calculate my maximum current draw from the battery due to both DC and A/C loads, it's way less than this. I'm assuming that the charging current to the 12V 200AH LifePo4 battery is less than or equal to the recommended max of 100A. So why such large cables and fuse? Could one not size the wire and fuse based on what's actually going to be used? In my case, I would think 150A would be more than enough.

But I'm probably missing something...

robertsonics asked
Kevin Windrem commented ·

2 Answers

BMV-712 Setup Configuration for dual 12V and 24V AGM Battery Banks

I have a Roadtrek Adventurous CS with an unusual battery bank setup. There are two banks of 6V AGM batteries, one set up for 24V and the other as 12V. They each have a separate solar charge controller and they are linked through a Cooper Bussmann battery balancer/equalizer.

Do I need two BMV-712 monitors (one for each bank)? Or can I set up one as the main monitor and the other as a second battery? As they are connected through the battery balancer, will that confuse the capacity calculation?

If I set it up as a second battery, where in the parallel series of batteries does the secondary monitor connect? (I'm guessing to the most positive battery end of the parallel series.) And is there a preference to use the 24V (which powers the AC) or 12V (which powers the all the other accessories) as the primary battery?

I'm attaching an image that was shown as an answer to another question because it shows both systems that are present (although I think that there are 6 batteries in the 12V bank).


Thanks for any advice you can provide!

ken-field asked
Trina answered ·

3 Answers

Lithium batteries not charging

Hi, I was charging my victron lithiums today, but after a very short time my multiplus switched to Absorption mode and and then state of charge got reset to 100 %. I would understand that can happen after a while when BMV gets out of sync, but when I disconnect the charger, battery voltage drops to ~ 24V, which is way too low for a 24V lithium batteries. Any suggestions what to check why would the system be behaving like this?


bezda asked
Trina answered ·

5 Answers

Help with setting victory 712 bluetooth + Rocket 6v 210ah series and parallel



Just got victron 712 and base on my understanding my class A have rocket in series then in parallel

I have two in series that gets them to 12 volts but that cuts your amps in half. Then those sets are in parallel which keeps the volts at 12 and doubles your AH rating. They start at 210 AH. So that means each battery set can produce 105 AH. Sooo i have 210 AH total.

what do i need to do in setting and configuration? I dont have solar or anything.



jimmy-le asked
Trina edited ·

1 Answer

Cerbo constantly dropping mobile hotspot

So my Cerbo has been running off of a spare phones mobile hotspot since I installed it about a month and a half ago. When I first set it up, the connection dropped a few times, but then for whatever reason it stayed connected for a solid month with no interruptions. Even while driving down the road, through areas with no reception, it still stayed connected once I was somewhere with reception again with no extra work on my end. Then I updated the phone (iPhone 11 on an AT&T network) and since then it will not stay connected. The phone has nearly full bars so spotty reception is not the issue, nor is data caps. I have reset the network settings on the phone several times, as well as rebooted the Cerbo several times. There was one point that it stayed connected for 2.5 days, but then suddenly quit again. When trying to reconnect it, it isn’t simple either. Usually in the WiFi settings on the Cerbo it seems to get stuck in a “connecting” phase. Even then, by “forgetting the network” and cycling the phones hotspot on/off it doesn’t just connect right back up...

So, I’m not sure what’s going on. I would say it just doesn’t play well with a mobile hotspot, but that wasn’t the case for a full month. I would also say it was the update, but since then it even had a connection for 2.5 days. But mostly it stays connected for a couple of hours and then drops back out again.

Also, I am about to change out all of the WiFi equipment in my home and will make sure to include a connection point that reaches the Cerbo so I won’t have to fool with the mobile hotspot at home, but when on the road I will still need to rely on the mobile hotspot so I would like to figure it out. So any help would be much appreciated.


chad-poindexter asked
chad-poindexter commented ·

1 Answer

How do I make Optimized (with BatteryLife) and soc is 95% work.

In Optimized with Battery Life and SOC set to 95% the battery slowly discharges because the bulk mode is not putting out enough amps to compensate for my furnace DC watts of roughly 200W. Charger does NOT seem to know about the DC loads. Sounds like a bug to me.

Ron Alexander asked
Trina 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

0 Answers

Orion-Tr Smart DC-DC Charger Input Ground


I have an Orion TR-smart DC-DC 12/12 30amp isolated charger in a van.

I have a 6gauge positive wire run from the starting battery to a fuse, then to the back of the van and to the positive input of the Orion.

Do I also need to run a 6 gauge ground wire directly from the battery (entire length of the van) to the negative input on the Orion charger, or is it sufficient to ground the negative input to the chassis at the back of the van?

1point3liter asked
Trina edited ·

1 Answer

Victron MPPT 75/15 not charging


I have a Victron MPPT 75/15, the solar is connected and I am getting 18wats to the terminals at the MPPT, however the lights on the front of the unit are showing that its not charging (Flashing blue, then holding blue for 3 seconds, then flashing all lights). When I go into Victron app the watts go up and down, however when I connect directly to the unit with my tester the terminal from the solar show a constant 18wats any help would be great.

Unfortunately I am not able to add the pics I have as they are in the wrong format

switherden asked

0 Answers

Why would my MPPT not go into Float? Absorption for 4.6 hrs.

Hello. I'm in southern Portugal and I have a Victron MPPT, battery sense, two 12v 400w panels in series and two 6v ultracell 600ah flooded lead acid batteries from Autosolar. System was self installed in May and worked well through summer.

I just want to check that this is normal as it's different behaviour to what I expected, and would rather get ahead of any damage.

Usage is around 1.5kw per day. Which I know is on the top side for my batteries (DOD 40% right?). But thought I could limit my use by working away or supliment with generator when not possible on heavy cloudy days.


Here's what I'm seeing. Low days here were topped of with generator. For two weeks now of great sunny weather I haven't entered float after over 5 hours of abs. Is this normal.

Battery did have one mishap where the circuit breaker failed in the summer and wasn't noticed for 2 days so ran down to 11.4v. I fixed asap and gave it a good charge followed by an equalisation. Thought it hadn't damaged too bad but now it's winter am I seeing the results? Thanks in advance



jack-reeves asked
Trina edited ·

5 Answers

VRM not talking to my Venus, is VRM down?

My Venus install has been working great, today though the usage stopped showing in the portal and I've rebooted my device several times.

The VRM settings show an error:


I am able to SSH into my device and ping successfully.

Is VRM down or what's going on with my device?

madsci1016 asked
madsci1016 answered ·

2 Answers

Can I use 24 volt solar panels to charge 12 volt batteries through MPPT Controller

I’m trying to spec a system using all Victron kit and looking at the 100/30 MPPT charge controller. Does that controller accept 24 volts from solar panels and charge 12 volt batteries?


stevecounsell asked
Trina commented ·

2 Answers

Cyrix-CT-Li and SuperPack LiPo batteries

I have two Victon SuperPack 200Ah batteries connected in parallel with a BMC-712 to a Cyrix-Li-Ct and my Sprinter's lead battery. I understand that the power flow is supposed to be one way but but this morning the Sprinter's battery is dead. I drove the Sprinter yesterday.

Since the SuperPacks have an internal BMS, I dont have an external/second BMS. I was advised to wire the Cyrix with battery to Sprinter battery, Lion terminal to one of the SuperPacks, then terminal 86 to ground and 85 to the one of the SuperPacks's postive terminal. Is this correct?

Advice is greatly appreciated.

Tom Hobbs asked
Justin Cook - Bay Marine Supply USA answered ·

1 Answer

Can a Buck Boost Work Parallel with an Orion-Tr Smart (DC-DC Chargers)?

I have a Buck Boost 25A 12V DC (12.5A 24V DC) DC-DC charger (Alternator to battery charger / isolator and several other terms) installed in a Sprinter custom motorhome to transfer amps from the 180A 12V alternator to a 24V lithium coach battery. It's working great for years but wish to increase charging amps. I prefer BT vs. USB so am considering adding an Orion-Tr rather than another Buck Boost. I wish to know if either differing chargers would "care" or whether they would both simply function the same?

For the super advanced techs, I'm also curious if it's more efficient to run in series to achieve 24V vs. program conversion from 12V to 24V in parallel?

ecowhale asked
Trina edited ·

1 Answer

Cyrix-ct 12/24V-120A Battery Combiner and low output alternators.

Looking at fitting the Cyrix-ct 12/24V-120A Battery Combiner to charge the trolling motor battery on my boat. The starting battery is a sealed expanded calcium, the trolling motor battery is a 120ah AGM and the engine's alternator puts out 16 amps.

Will this combination work to keep my batteries charged?

I'm currently using a basic VSR which continually switches while running the engine. Will the Cyrix-ct 12/24V-120A Battery Combiner solve this problem?


leezor asked
Justin Cook - Bay Marine Supply USA answered ·

2 Answers

New owner of BMV-712

as a new owner of a VictronEnergy solar system the app needs new password, I entered PUK - now asks me to "unBond" and little video attached makes no sense to me? HELP PLEASE

sandylee asked
Justin Cook - Bay Marine Supply USA answered ·

1 Answer

3 x Quattro's in 3 phase with single phase shore connection

I've got 3 x 10 kVA Quattros set up for a 3 phase AC load.

The primary generating source is a 48 V DC Hybrid Generator and lithium battery system connected to the Quattros at 48V DC.

There is a intermittent AC mains resource that I'd like to utilise to charge to batteries or feed the load when available, the AC connection is in single phase. At the moment, the AC-in connection is wired up at 3 phase with 1 phase connected to each of the Quattro AC-in-1 connections.

Can I connect a single phase AC-in even though AC out in 3 phase ?

Should it just be connected to 1 phase only ? i.e. 1 quattro AC-in connection or should I parallel the AC-in across 3 Quattros ?

energylad asked

0 Answers

L3 overload with practically no load.


I have 3-phase system build on EasySolar-II GX (phase L1), 2x Multiplus-II (phase L2 and L3)

There is no ESS assistant loaded only Two-signai BMS.

First time this system reported overload on phase L3 twice.

It happened when there was grid loss for less than a minute.

System is under development and there is practically no load (50-60W)

Why this overload happen?



marekp asked
marekp commented ·

2 Answers

EM24 Smart Meter read out over Modbus TCP/IP


the Smart Meter connection to the Victron controller via Modbus RTU (RS485) is only wisely in case you have a short Way between the Smart Meter and the Victron Controller.

In case you have a long way or different buildings the connection over TCP/IP is required.

To prevent to install a separate RS485 Bus Cable. (using structured cabling !)

Installation Example:

#######Buildings-A############ ###Buildings-B###

EM24 -->RS485-->Modbus TCP Gateway---------TCP/IP---------------->CerboGX

Now the Question:

How can i add the Smart Meter Connection via Modbus TCP/IP to my Cerbo GX?

(FW 2.60)

jxa asked

0 Answers

Victron Multiplus compact 12/1600/70 overcharging marine leisure batteries

We have a Victron charging our 3 x 180ah 12v house batteries on our boat. The batteries were new this summer. We liveaboard and have been connected to shore power for 6 weeks. I noticed today the house batteries are being held at high voltage, there are only 1 or 2amps flowing in but the voltage is moving in a range of 14.8 to 15.1v. The multicontrol shows its in absorption phase. After switching off the charger voltage dropped down to 13.4. I left the charger off for 30 mins, it is now back on and holding the batteries between 14.5 and 14.7v, bulk and absorption lights are on, but steady, it's not equalising or forced absorption.

Anybody any ideas where I look, I hope it's not time for a new unit.

imoulding asked
jwfrary answered ·

1 Answer

cerbo gx internal audible alarm not working

cerbo gx internal audible alarm not working, there are alarms in the log file but the internal alarm has never gone off, is is set to on in general settings. The cerbo is v2.6, I can't use the relay on an external alarm as it's in use as a level controller. Any idea why the internal alarm does not work ?

vincefarrar asked

0 Answers

VRM grid lost alarm will not clear

I labelled my Quattro AC input 1 as ‘shore power’, then set up an alarm rule on my CCGX where all input labels (not available, grid, generator, shore power) were enabled.

When I disconnected my shore power, the CCGX and VRM gave me ‘grid lost’ alarms. I acknowledged the alarm on the CCGX and reconnected shore power but it took a reset to clear the CCGX, and I can’t clear it on the VRM.

I’ve tried deleting the rule and setting up a new one, re-labelling my input as ‘grid’ to see if that’ll clear it - no luck.

Any advice appreciated - would like to clear from the VRM.

bullox asked
harold answered ·

2 Answers

Missing Dashboard data

I have just added two temperature probes and two tank level monitors. All the readings are fine in the settings and in VRM advanced, but none appears in the dashboard.

And yes everything is up to date.

vincefarrar asked
vincefarrar edited ·

0 Answers

How to add temperature readings to remote console.

I am using two temperature sensors to monitor the engine cooling water temperature, and need to see the readings on the remote console, as they are obviously very important. Is there an easy way to do this ?

vincefarrar asked

0 Answers

What type of Wind Turbine works best with EasySolar

Greetings, I would like to add a wind turbine to my off grid easy solar 3 kva 48v system to keep batteries charged on overcast days. Looking online, Kestrel wind turbines have various voltage output options on their e160i product, amongst others, they have 48v or 200 VAC turbines.

Question is ...What is the better solution .. to go for the 200v and plug directly into the shore power input or alternatively feed the 48v output from the Turbine into the DC input.

Also, will the easy solar unit dump off the excess power input from the turbine when it is not required? Thanks Maarten

Maarten De Graaf asked
ttbb commented ·

3 Answers