charging

Hi.

This message is mainly for Victron staff.

I'm fully aware that there are already stations installed for end customers, mainly with the title of testing units, the question remains.

When this product will be available for general public?

Thanks

https://www.victronenergy.com/live/evchargingstation

When will Victron support the EEBus protocoll. I have a Wallbox from VOLKSWAGEN (Elli) and want to do overflow charging.

Regards, Christian

Hi All,

I am relatively new to campervan setups, and I do not have a background in 12v electrics.

I have had a Victron Smart Solar 20A 100V MPPT installed in my campervan together with a new leisure battery, which I am really pleased with on first inspection.

There are a number of options in the Victron Connect app to allow configuration of the Smart Solar 20A 100V MPPT, here are the settings I am talking about.

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It looks like most of the settings (Charge Voltages etc.) are set by either selecting a Battery Preset (see options below), or by selecting "expert mode" and specifying your own numbers for the Charge Voltages. The "factory default" seems to be the Gel Victron Deep Discharge option.

The other Battery Preset options available are:

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It says in the manual to ensure the settings match your specific leisure battery, and this is where I am struggling - I cannot seem to locate the information needed. The leisure battery installed is a 12V 110AH Xtreme AGM Leisure Battery (XR1750) NCC Class A.

So, my question are:

1. Are the Factory Default settings ok for my specific battery? Or should I change them?
2. If I need to change them, then:
   1. Should I pick another pre-set, if so which one?
   2. Or, should I use expert mode and set the Charge Voltages manually? And if I do, what numbers should I use?

A final (less important question) also

1. What does the "equalisation stuff" do, and do I need to worry about it?

Thanks everyone!

Hi Newbie to this and forums in general.

I have an old generation Phoenix Multiplus 24/3000/70 dual or daisy chained charger inverter system on our boat. We have used it with 10x250AH lead acid batteries configured for 24VDC. I want to change these for lithium and want to know if i can get the inverter charger programmed to charge the lithium batteries. I am also looking at purchasing an electrodacus SMS0 in support of it if that helps in answering the question?

BR

Guy

Hello I just bought a victron deep cycle 110 ah agm to replace the old battery after 3 years.
I would like to ask a Victron technician for the correct parameters.
I only use a solar charge with a fully configurable 30A mppt regulator.
Every day the solar energy is more than enuff to charge completely the battery. 
I discharge the battery every night on average about 20 ah.
I would like to know the correct absorption voltage and the correct duration of the absorption for my use (daily discharge of 20 ah).
Currently I have set 14.5v and absorption duration of 120 minutes with temperature compensation of - 4mV / C / cell. Floating 13.7v.
Today for example after the end of the absorption, the battery absorbed 0.8A in floating at 13.7V.
But trying to increase the floating to 14.5v, I saw that it went up to 2.6A. These is strange for me... 
Does that mean it wasn't fully charged? Or is it due to gas generation?
Then disconnecting the solar panel, after an hour the battery was at 13.5v, so it would appear to be fully charged.

The old agm, at the end of absorption, absorbed 0.8a for both 13.7v and 14.5v.
Why these difference on new battery? 
I can see all these parameters on the victronenergy smartshuunt.

I am researching the IP65 12/15 charger. I see a nominal charge current of 15A and a low current mode of 4A. If I manually trigger the low current mode and then unplug it completely from both supply and load, will it "remember" it is in low current mode next time it is used?

If not, I assume I can plug it in and then set it to low current prior to hooking up the battery and before drawing power? Once it is manually put in low current mode, will it remain in that mode until manually set to normal current?

I ask incase I find myself with limited available current and want to ensure I remain fully in the low current mode.

Thanks in advance!

Victron Lifepo4 200Ah is currently at 3.13V per cell. Expected behaviour of the charger after switching it on: It should bulk charge the battery (LiIon-Mode enabled) with up to 30A and switch to absorption charge after the battery ist almost charged completely.

What the blue smart device does instead: It bulk charges for ~2s (yes, seconds...) and switches immediately to absorption charge for the next 2 hours with ~6A (decreasing over time). So the battery is never charged to its full capacity...

All parameters in victron connect app seem to be correct. 'Charged voltage' in BMS ist set to 14.0V, blue smart charges with 14.2V. Did I get something wrong? Any suggestion are welcome.

System Design:

I have 3 Lion Energy UT1300 LiFePO4 105Ah batteries. They each have an internal BMS and are the 'drop in' replacements for deep cycle Lead Acid batteries. They are rated for maximum 100A charge / 150A discharge each and are connected in parallel using 4/0 AWG cables. On the negative terminal I have 12" 4 AWG cable to a BMV 500A shunt and then 24" 4 AWG cable to a Lynx Shunt. On the positive side I have 24" 4 AWG between the battery bank and a BlueSea m6000 disconnect switch, then 12" 4 AWG from the switch to the Lynx Shunt. The Lynx Shunt is connected to a Lynx Distributor. Then I have a MultiPlus 12/3000/120 connected to the Lynx Distributor via (2) 36" 4 AWG cables and a 400A Mega Fuse. The Lynx Shunt has a 800A CNN fuse. The MultiPlus has the voltage sense connected using a fused 20 AWG wire to the battery terminals. I know the 4 AWG wiring is not ideal, I will replace with larger wire in my final installation, I don't know if it is the source of my issue. Here is a crude wiring diagram

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Issue:

I can discharge the batteries fine, the problem occurs during charging. When the MultiPlus transitions from Bulk to Absorption problems occur. They range from interrupted charging (Absorption voltage set to 13.9 - 14.1) to complete shutdown of the MultiPlus (Absorption voltage set to 14.4 - 14.6).

Here is a picture of the PV during charging showing the transition between bulk and absorption. The absorption voltage is set to 13.9, the unit seems to stop charging after the transition to absorption.

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Here is the picture of PV when the MultiPlus absorption voltage is set to 14.4 Volts. The drops during the absorption mode represent when the MultiPlus shuts down and then resets itself. During the shutdown all lights are off and AC1 is off. NOTE: The voltage spikes seem to follow the current peaks. The MultiPlus will continue this interrupt cycle indefinitely until I intervene.

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Question:

1. Has anyone else seen this behavior?

2. Could this be caused by the BMS shutting down during charging?

3. Could this be caused by using 4 AWG cable?

4. Could the MultiPlus design be causing the voltage spike?

5. What would a normal PV chart look like during absorption mode? I have read absorption mode is a constant voltage with reducing current until charging is complete.

Thanks in advance for any help.

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Une idée de ce qui se peut se passer ?

Merci!

Currently the Grid-Setpoint in ESS is a static number (in watts) that controls how much system power is allowed from grid, with the remaining load being served by incoming solar and/or battery capacity, down to a tolerable SOC. While that works great in the assumption of keeping batteries @100%, every day, it’s not so good for long-term health and maintenance of lithium batteries, in a (stable) grid-tied system.

I would like to suggest an upper limit to the SOC (other than default 100%), at which point the ESS would dynamically shift the load more/less (by changing Grid Setpoint) to charge the batteries when they’re below the high mark, and otherwise running the load off of solar or battery capacity, down to the existing minimum SOC (as normal)... or similar type of functionality.

Currently, I’m constantly changing the Grid Setpoint down, to serve the system loads from the incoming solar preferentially, as much as possible. Then resetting it up again at night, to keep the batteries above a reasonable SOC. While workable, it is way more manual than it needs to be.
I believe adding a simple top SOC to the algorithm that controls when to shift to using solar would greatly simplify and automate this process.

Hi,

I'm charging a 250 AH li-ion batterie equipped with an internal BMS.

When connected to mains, the charger start in BULK charging at 30A, and quickly switches to ABS (around 3A, which is correct).

But a few dozen of seconds later, it goes back to BULK charging at 30A, and a minute later back to ABS, and cycles like this.

Load on the battery is light at this time (around 10W), and from my understanding, ABS should maintain a fixed voltage and provide the current absorbed by the battery (+load). No reason to switch back to BULK charging.

I see alternating BULK (buzzing) /ABS (silent) every minute. I'm providing four screenshots of the app with phone's time to illustrate.

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Any idea on what could be causing this ?

Thank you !

Hello,

I have a BlueSolar MPPT 100/30 charger and 2 used car batteries (12V, 60Ah), Varta, no maintenance needed (sealed), which I want to put in series so I can have a 24V system.

I see in VictronConnect that I can set the charging current .. but what value should I put there to be safe?

I plan in using the batteries mostly as a buffer system (a 24V, 300W pump is running to move the water from a deep well to a water tank).

Thank you!

Hi,

i have Smart Solar 75/15, which appears to be throttling or reducing the charge during the bulk phase.

I have 2 solar panels, a 130w panel (open circuit voltage 18.2v, and short circuit current of 7.2A) and a 100W panel (open circuit voltage 18.6V, and short circuit current of 4.9A). These panels are connected in parallel. The solar controller is connected to two brand new AGM batteries 92Ah and 120Ah connected in parallel. There are no loads on the batteries.

The highest output shown on my 75/15 is just 112W. The screen shot below shows just 66W with the battery at 14.43 v. This was in the middle of a sunny clear day in Australia, and just before I tested the panels with the multimeter. The Adsorption voltage is set to 14.8v. My understanding is the 75/15 should put in as much current as possible during the bulk phase. With my panels, I should see a Max of about 220W.

With no real load on them at the moment my batteries start at 12.7v in the morning. With the throttling behaviour of the solar controller, they seem to take ages to get up to the bulk/adsorption trigger voltage of 14.8 (which temp compensates to 14.61v). In the snip below it took 3 hours 42minutes to reach this voltage, this was in full sun from 10am!

Could someone please explain what is happening. I’m disappointed in this solar controller, as it seems to not be using the full potential of the panels, and so take ages to raise the battery voltage.

Thanks,

Alan

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Good day all,

It is my first time installing a 3000C pylontech battery, and the charge curve looks very different to the US2000B I have installed before. The settings are all correct and the device is happy, the only thing I can think of is that the battery BMS is not asking for current, which is different to my us2000B installation...

Any one else seen this? I assume it is normal as the system works flawlessly, just very odd.

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Side note- I did use a type A cable and not a type B cable as per the updated Can bus communication report

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hello, can anyone help me with the correct settings for a multiplus with narada lead carbon batteries using ve config. i have included some documentation from narada, thanks so much, regards stuart

1. I have a 400w panel on a battery switch inputting to a SmartSolar 100/30 and connected to a 200ah battery.

I just got everything hooked up and it was working perfectly for a few hours before I got curious and decided to test the photovoltaic battery switch I installed to see what happens when I cut the power to the Victron unit. It disabled the current perfectly!

when I turned the switch back on I noticed that it went into bulk charge mode and was showing over 40v on the panel but is showing zero amperage charging the battery. The battery voltage is still showing up just fine, but it’s not increasing.

It looks like I somehow messed up the charging by turning off the switch and turning it back on again. Any suggestions for how to reset this and get it working again?

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Is it acceptable to charge a secondary FLA battery from an inverter running off a primary LiFePO4 bank as per the attached drawing. Thanks - Tim LiFePO4 Start Battery Charging.pdf

Dear Victron,

in May i have seen your blog entry presenting an future Victron Wallbox, i was super happy as i would assume that it would make my life way easier in regard to dynamic/smart EV charging as part of an offgrid 3 phase island system.

As the car is now available i have to decide whether i wait for the finished Victron product (which hopefully offers dynamic/smart charging) or go with an DIY solution including extensive programming (what I wane avoid).

Maybe I am lucky and you are already in a state to spread some more infos to the community!?

Regards

Janek

I have a site with a battery going into overvoltage alarm. I have updated all firmware and checked the charging parameters.

It apears that the VENUS GX connected is the one 'dictating" the incorrect charge settings.

System config:

Venux GX FW 2.60 DVCC enabled
Quattro 15kVA FW 476 (was 430 with same issue) with ESS
150/70 Smart MPPT
250/70 Smart MPPT
2 x BlueNova 52V 8kWh (to make 16kWh battery)

Charge absorb settings are set to 56.2V, Float at 55.5V.

When Venus GX is disconnected Charging on all devices stops at 56.2V

The moment VE.Bus is connect to the GX the charging (on Generator) goes up over 60V (battery cuts off at this point). This also happens with the battery comms disconnected.

Any pointers on how to fix this?

Can I run a report on alternator energy? Is there something via the Victron portal?

There are reports on grid (shore power) and/or generator usage, but I want more information about the alternator. The BMV-712 has wire leds specifically for the alternator.

Here's my equipment: two Victron 12,8 LFP batteries w/Bluetooth (each 300 Ah), Victron MultiPlus 12/3000/120-50 120V VE.Bus Inverter/Charger, Victron Battery Monitor BMV-712, Victron Color Monitor w/Bluetooth dongle and Victron Smart Solar Charge Controller MPPT 150/85-Tr.

TIA...

Hi All.

Need help determining if this can work or not. Excel says no, Online says yes. May well be operator error, not sure.

I have a EasySolar 3000 (Specs - https://www.victronenergy.com/inverter-charger-mppt/easysolar) for off grid work.
I'm have the panels from my house (which I have since upgraded) 10 x Sharp NUSOE3E panels 30v x 180A - approx 8-10yo.(Specs - https://www.energymatters.com.au/images/sharp/Sharp-NUS0E3E.pdf)

The EasySolar has a 150/70 MC4 inside, so was going to do 2 strings of 5 panels.

Challenge is excel says no, can only do 2 x 4 panels, online says yes I can.

I don't really want to overload and kill the thing, and it's remote so don't really want to start a bushfire either.....

Can anyone shine some light? I'd like to use all 10 panels for the best capacity if possible, but wondering if the panel specs versus MPPT specs may mean that's not possible.

Thanks.

I'm wanting to build a charging system that can be charged from just about anything. I'd like to be able to use solar,shore power,a generator, and to be able to plug into my truck when moving. Any idea what equipment I would need?

Hello guys,

I have installed a 150/35 MPPT Smart Solar charger in my van and it is driving me crazy with the noise it produces. Once I disconnect the solar panels, the noise is gone.

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Is this normal, something I have to live with or is there anything that can be done?

Thank you

I just had a centaur 12/30 installed on my boat, the led green light is on, the switch is set correctly to LA battery, don’t see the amp meter showing any output

Unable to get grid charging to work. Solar charging is o.k. Using 3 xPylontech 2.4kw batteries, dc and ac coupled PV, FW V2.60.,current sensor on grid. No warnings or alarms.

1. In keep batteries charged mode.

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2. Battery discharges to load but no charging..

With optimised battery life and when manually switched to charger.

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Only DC PV charging.

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12v Sealed Lead Acid Batteries 90Ah

3x Paralell for Service Bank

1x Start

1x Bow

For charging we now use an ArgoFet 100-3

Generator 60 Amp.

Any suggestions to optimize the charging?

With correct temperatures, voltages and charge stages?

Currently my Quattro (and multi) only allows a minimum of one hour of absorption time on initial charge (even though it allows .25 hours on repeated absorption).

My (and arguably most) lithium batteries require very little absorption time. So forcing them into a 1 hour absorption is both unnecessary and potentially causes extra wear on lithium batteries.

I would like to see the base absorption time settable to, at the very least, the same levels as with repeated absorption, or to even smaller window sizes.

Ideally I'd put my batteries in 10 minutes of absorption.

Hi everyone,

I have a new install with Victron 12v 150ah smart lithium batteries along with an IP44 charger.

I am using the victron mini bms to control the charge disconnect remote port on the IP44.

Question is " in the Skylla IP44 setting there is a spot where you select BMS present- Y or N."

Do I select yes or no. Or is this only for CAN connected devices

thanks

Ed

My 3000 will charge my lithium batteries fine thru all the steps, bulk, absorption, and then float. Once it reaches float it will actually go to Off when I view the app It then will start back up on it's on. Sometimes in absorption mode, sometimes in bulk mode. Anybody know what can cause this and will this lead to bigger problems. How do I fix?