Hello guys!

I have a three-phase ve bus system with two PV chargers.

I think I have some problems with in/out power calculation on the VRM portal.

If I take one-day data from VRM its looks like the PV to battery power more than the battery to consumption power. So how it's happening? If I take from battery-less then I use where the excess power is going?

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i have a new Smart Solar 150/100-TR hooked up as shown in illustration attached, i need to know what values to feed in custom battery parameters (since i cant seem to find its type in presets).

since if i do straightforward calculations, the controller seems to keep on charging the batteries even though the floating voltage seems to have been attained and the load on the inverter is not as much as the current being supplied to the batteries.

please if you could also kindly recommend a safe and efficient charging current for the battery bank please.

I am using the victron bluetooth latest app to configure.

I live in Daressalaam, Tanzania - Tropical Climate with temperatures around 34 Degrees Celsius ( if it helps in temp compensation)

Thank you in advance.

Kind Regards

Romeet Barmeda

I have a Quattro 48/10000/140 hooked up to two BYD 24v 200ah batteries connected in series, with two blusolar 70 amp mppts and a 5kw array, all connected with a Venus. We are totally offgrid, so fully dependent on our setup. It has been working fine for the past two months since setting it up, but now that we have added some larger draw appliances it has been acting strangely.

The main issue is the Quattro reading the batteries as fully charged, when they are not even close. As a result, it is only float or absorption charging when it should be bulk. Every time I have run my generator (5Kva), no matter what level the batteries are at, it immediately give a false 95% full reading. Even during the day, the mppts will charge the batteries up to about 53v, then they start reading the batteries as full and reading 55.5 float. In both instances, when I use the multimeter to check the actual state of the batteries, they read 53v, not the 55v the charger and quattros are reading.

For example: Yesterday the mppts said the batteries were full at 10 am and started float charging at 55.5v. when I checked the actual voltage of the batter it was about 53.2v. over the course of the day the actual reading slowly climbed to about 53.7v. During the time of day when I know the panels are able to produce over 5kw, they are only producing enough to run the house and float. When the sun goes down, I check the batteries and they are at 52v after just a short time with a medium load. As a result, the batteries don't make it through the night with even a small load of fans, etc. (its 45-50C during day, and 30-35C at night here, so sleeping without a fan is difficult). So the batteries died at 04:30, The Venus read 47.3V (but was claiming to be 43% full), and actual battery reading was 48.1v (Venus was with 800w load, battery was with no load after power to house had cut off). So I started the generator to run the house and charge the batteries. But as soon as I connected it the venus went to 95% and started float charging at 55.5v at about 50w. The actual battery reading was at 48.4v. So I ran it until there was just enough sun to at least run a fan (about 1.5 hours) and when I shut it off the batteries were reading 48.8v.

The first few times I ran the generator, it would run the house and air conditioners on full blast (about 2,200w) and charge at about 1500w. but now it seems it won't charge the batteries because they immediately think they are full. Its really frustrating to have to continually worry about the power running out at night, getting up and starting/stoping the generator. Especially if I have to run it just to power a fan. Please, any help would be greatly appreciated. Thank you.

Hello, I cannot figure out why my Victron battery monitor is stuck at 100%. I have disconnected the load lead from the shunt and did a zero calibration with no luck either. I don't have any solar just a battery and DC output right now. Any ideas what is wrong? The charge has dropped all the way down to 11V with no change from 100%. Thanks

Equipment:

Battle Born 100AH Lithium battery

BMV-712 battery monitor connected to GX monitor

Charger/Inverter - Multiplus 2000watt

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Hi, I would like if someone with more experience than I can help me to solve this. Actually we have an Off-Grid site with 4 PV strings, every string have 16 50w solar pannels connected in serial-parallel to get 24V to the power bank (14 batteries 12V 100Ah each battery). Each string have a Morningstar PS-30M, but they are connected in parallel on the load port and works well, but we have to replace them, because they have more than 20 years in use. I have seen that a Smartsolar MPPT 150/35 is a good option, but we can't connect the battery banks in parallel to charge the batteries because they are in 2 different places with a distance between them of 4 meters (around 8 meters of cable difference between the longest cable and the short one, so they could have a difference of the charge voltage. How can we connect the battery banks to the load with the Smartsolar and maintain the 4 battery banks?

Thanks a lot for your help.

We have one fitted, that is showing broken up information on the lcd panel. I am told they are obsolete, fair enough, but will anything else be out there to replace it?

Has anyone got one?

Hello everyone,

I have a 80 V battery with a output current of 200 A.

I want to convert this to 230 V, but therefore I will first decrease the voltage to 24 V.

For that I want to use Orion 110/24-360W ( I wish I could Orion 110/48-360W but I can`t find it so probably it don`t exist).

Then I want to use the Phoenix 24/5000 to make 230Vac.

The problem is the current, because I don`t know if the orion can handle such high current.
I also don`t know what the output current of the orion is. And at least I also don`t know what the needed inputcurrent must be for the phoenix.

The idea of this is that with a 80V battery I can provide elektricity to a building in case of a black out. And for that I need a converting systeem from 80 Vdc to 230 Vac with high power. This systeem described above is the only way I could figure out so if anyone have a better idea pleas let me know.

Hello.

I have 2 LiFePO4 12,8 V / 200 Ah Smart (series cabling) on Multiplus (via BMS and Ac detector).

When in the evening, I launch a dishwasher, suddenly the voltage which is arround 25,0 or 26,0 V, drop to 18,7V (2,33 per cells) and immediatly go up to 20,0 V, 21,0V... to reach 25,0 V again.

On multi-plus we can read : CA Input (2600W), CA Output (2600W), and state : "Main power assistance" or "Direct Capacity".

I just want to know if it's normal in this case (relay ot the battery, by the main current), and without consequences for the battery lifetime, or if we have to change parameters, knowing that multi-plus parameters and mppt parameters are fixed with the template for LiFePO4, proposed by the software interface.

Best Regards.

We have added a US 3000 Pylontech battery module to an existing bank of 5 US 3000s. On completing the installation and switching on - all battery modules are operating normally and the system itself is operating normally with no faults showing. the battery monitor however is showing the fault;

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this alarm has been active now for 24 hours. what is the reason and how do I rectify it. I suspect it is a result of and arc when closing the fuse to the inverter - but as i say the alarm is still active.

The system consists of;

1 x 8KvA Quattro

2 x 150v 70A controllers

1 x venus GX

6 x Pylontech 3500 - set up in two strings of three

24 x 335w solar modules

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Am I able to charge a 48 Volt battery bank (Four 12V batteries connected in series) with two 12 volt solar panels with a 75/15 MPPT charge controller in between?

Hi - If somebody can help on this.. If you see below my battery is on float state and reading shows 54.9V. But the setting in the configuration for float is 55.2V. But the charge never goes beyond 54.9V and its always charging. When I check the voltage at the battery terminal its at 55.2V.

Is this an issue if its always charging or why does it no go beyond 54.9. The distance between the battery and the Easy solar is less than a feet. How do I correct this?

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I've got an IP67 12/17 on a boat, charging two banks of batteries with a VSR between them to ensure both banks get charged. I'm on shore power so the charger stays on all the time I'm connected. Since returning from a cruise - away from shore power for most of three weeks - except for odd nights in marinas. The trip involved a lot of motoring so the batteries were constantly getting charged during the day. Since my return I have noticed a couple of changes to my charger/battery set up. The Bluetooth status used - most of the time - to show that the batteries were in storage mode with a voltage of about 13.7 volts and a small current of about half an amp (this I assume was just keeping the batteries fully topped up and balancing for the small amount of 12volt power that I still use whilst connected to shore power). Now when I click on the Bluetooth link to view the battery/charger state instead of 'storage' coming up I get a the message 'OFF' for about a second before the screen reverts to 'Storage', but the voltage is now only sitting at 13.3volts whilst the current still shows about half an amp. I suppose that the battery banks might be absolutely fully charged which might explain the lower voltage - a voltage that being less than 13.6 would not actually allow the batteries to charge ??? whilst the current is simply what I'm drawing on my 12volt systems which the charger is providing rather than drawing power from the batteries. Has anyone had this same experience and am I worrying unnecessarily?

Can I use two different size batteries together without any problems? One battery is 170ah and the other one is 100ah.

I need advise on what battery setting to be do be done in VE Configure. I have an Easy solar 3000/48 with ESS enabled. I have 4 x 12v/200 AH flooded tubular batteries (Exide Indian brand) which are not listed.

What option needs to be checked in this list... Flooded tubular plate or No corresponding defaults

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I am just wondering when the minimum battery voltage reading is taken because when going to sleep and all loads off, the controller shows say 12.40. On checking up the following morning at 7 o'clock, the minimum shows a higher figure say 12.57. What happened?

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The numbers seem pretty unbelievable. is this a system fault or what could have caused this?

THanks for the help!

I have a 1000 Ah battery bank and have connected a Victron Multi Compact 12V/2000VA/80 Amp. On the battery poles I get between 50-100 V AC,

When disconnecting everything on the AC side, the AC on DC side dissapears, but hanging a loose 30 meter electric wire to the AC side of the system (wire only, no load), I get 50 V AC. With 300W load, I get about 100 volts.

Wires are 35 mm2 and the device is properly grounded.

1: Any idea what is wrong?

2: Will this dammage my batteries?

Hoping for answer :-)

There does not seem to be a clear answer on here for this. Manufacturer is not supplying information. Victron deep discharge 2 seems to be the best option.

Good day

I have a issue with a Colour Control showing a SOC of 42% even though the battery voltage is 55v on a 48v system.

Setup as follows:

Quattro 48/8000, 4 x Victron AGM200Ah 12v batteries in series, 2 MPPT 150/85 with 7kw of panels and a Colour Control.

AC in connected to mains, AC2 connected to generator as backup.

All units updated to latest firmware.

System is used as a backup system and I want batteries ideally at 100% - excess PV power must go back to my factory grid.

VEConfig settings:
General: Battery monitor set to 85%, 200Ah capacity and 0.8 efficiency. Dynamic current limiter unchecked.
Grid: Country:other (to allow excess PV back to our factory grid.) and LOM both on type b.
Transfer switch set to accept wide freq range and default values.
UPS function unchecked.
Inverter set to 230v, ground relay checked, power assist unchecked,
DC input set as 40, 46.4 and 47. Shutdown on SOC unchecked, enable AES unchecked.
Charger: Enabled , all options unchecked, Settings at 57.6v, 55.2v, 60a, 1 hr, 7 days, 8 hours.
Virtual switch disabled.
Standard ESS assistant installed and set to 200Ah capacity and default settings.

Colour control settings under ESS
Keep batteries charged, grid tie meter disabled and feed in excess solar checked.

I recently installed the Victron batteries and updated the system firmware and changed from using Hub1 to ESS. Updated the MPPT settings to AGM batteries.

I suspect it is battery settings in VE config causing the SOC issues.

Do I even need an ESS assistant ?

Any advice on setup welcome !

Hi.

I believe my xantrex battery charger inverter may be sending a dc power spike through my 12 volt system. I have 2 x victron 50/100 solar controllers who don't capture this event in their battery monitoring capture history. How often do these controllers test the battery voltage levels?

Hi.

From where does the 100/30 get the battery voltage shown in the Status Dashboard? As I do have a difference of 0.2-0.3V between 100/30 and real measured voltage at the battery itself (battery voltage lower) I guess that there are some algorithms working within 100/30.

Is this the right understanding?

Thanks for a quick answer.
Holger.

I have 2x6 V batteries with 232 Ah capacity setup in parallel to give me 12v in our travel trailer. I'm fairly sure I have overcharged them in the past and believe their actual capacity to be less than the 232. I installed the BMV 702 to both understand their actual capacity and guard against over or under charge going forward.

I've been testing the setup at home before we go dry camping. Running the heater and fridge and some lights over 8 hours or so, I pulled 23 Ah at a max draw of 5-6A. The battery got down to about 12.35V and the SOC showed 93%. My limited understanding is that 12V batteries shouldn't cycle below around 12.3V. If this is the case then it seems 93% is not correct. It also seems like my batteries are actually compromised in that they come nowhere near the 232 Ah.

I may be missing some factor in this and would appreciate your insight.

Thanks

I have a SmartSolar 250/100 mc-4 with 3 280W panels connected to it. All goes to a 200 ah 12v lithium battery. Today I experienced voltage spikes from 13.9 to 26v and back multiple times. It burned my inverter and the house almost caught fire. What is the cause? Anyone?

Hi members,

I've got a question which may be simple for the most of you, but i want to be sure to hook my system up right before switching it on.

Components: Easysolar 48/5000/70-100 MPPT150/100
Panels: LG Neon2 N1K-V5 320Wp X 4
BYD Bbox 7.5 KWh

Question no.1 : do i need to wire the panels in series or parallel?
2: do i need to put any fuses between panels and inverter or inverter and batteries?

Any other indispensable tips to take into account?

Thanks,

Marcel

I have a SmartSolar MPPT 150/45-Tr on my RV. It is connected to four 6v batteries hooked up in series parallel (12v) and six 100 watt panels in two paralleled sets of three panels in series. Between the MPPT and the batteries is #4 AWG (25mm² ) copper with a 50a 12-24v DC breaker. It has worked flawlessly for the past couple weeks charging my batteries when they get drained and topping them off when they're not in use.

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The last couple days I've found my DC breaker tripped open. I'm not sure if the 50a is just too sensitive for my setup or if there is something bigger going on.

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I think the low minimum voltage listed for the battery is due to the breaker tripping because I've never seen the battery voltage dip below 11.22v on my Victron Smart Battery Sense through the VictronConnect app. And that was under heavy load during the nighttime with no solar. As soon as the load was done the battery bounced back to over 12v. As for the "#2 Battery high voltage" error, I have no clue.

As for the settings, the battery manufacturer states to add 0.005 volt per cell for every 1°C below 25°C and subtract 0.005 volt per cell for every 1°C above 25°C. So I have my MPPT set to -30mV for every 1°C. It hasn't been freezing where we are at and the Smart Battery Sense has been reading an average of 8-15°C.

I just ordered a 60a breaker to replace my 50a that may be just a touch too sensitive and I'll replace it when it comes in tomorrow.

So what do you think?