Smart Battery Charging Control with Victron DVCC. It actually works!
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- Опубліковано 28 вер 2024
- You have a small battery which gets too much power? Still on lead acid but a massive solar array connected? Hot battery because of too much current?
We are going to have a closer look at the Victron DVCC (Distributed Voltage and Current Control). It is an option in the Victron Venus OS but how does it actually work, what does it do and how to configure it?
With the new solar upgrade on the garage, I'm constantly having far too high charging currents for my battery banks. I tried restricting the MPPTs or turning on more loads during solar peak time but both is not really an option and needs constant monitoring and adjusting of the system.
Some people have already suggested to turn on DVCC in the Venus OS but I was always under the impression, we would need a smart BMS for that to work.
It seems like, the solution is far easier than I thought. With DVCC we can easily control the charging current without affecting the overall solar performance. Once it is set, forget about it and DVCC will take care of everything. AMAZING!
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Yes, and DVCC also ramps down the charging current when SOC reaches more than 90% and stops charging when SOC is 100%. Once every 1-2 months I switch DVCC off for one charge cycle to get the SOC of my BMS in sync again (3.5V/cell). So happy with it.
Based on your explanation of this DVCC, I do find it a great feature!
Hi Andy, with Venus OS Large and Node Red you can program controls for the charging and discharging current as you wish. So you just need a temperature sensor in the battery, which communicates to the Victron System and control the current depending on the temperature.
Even cheaper alternative, if you have a lot of solar to spare in summer, you can just program it such that the charge current is lower in summer and higher in winter.
I know, this can be done with Node Red, but no idea where to start and how to program that. Just not enough time to look into all that...
@@OffGridGarageAustralia Andy was that u on the Telegram app who sent me a message saying I won something ??
@@diysolaradventures7894 i doubt it
@@SiriusSolar ok thanks someone posing as u tried to scam me telling me I won something he was messaging me on one of your videos comment sections
@@diysolaradventures7894 Just to be clear I am not off-grid garage. I know he has done giveaways before and I'm not sure what method he uses to contact people but 99.9% chance that the person contacting you was literally a scammer. It's easy to tell though Just look at the person's name and click on their name. If it brings you to their UA-cam channel and it is literally the correct channel then it would be the real off-grid garage. But if it brings you to a different channel that might have some stolen videos from the official channel but doesn't have the whole history going clear back then it's a scammer. And if he's giving you some stupid WhatsApp , or telegram or some other messaging system contact then it's definitely a scammer!
Andy, perfect timing as I just purchased Victron Quattros at a Black Friday sale and along with everything else, can configure my off grid system now..
Hey there Andy, I have not gone back to binge-watch all your episodes from the beginning(yet), but the advancement of the DVCC is a great benefit but the power of ESS is also huge. I have a small system in my shop set up that is allowing me to feed my excess solar production back into my shop to help provide some of my daily use. At some point, I would love to have an array like yours but can not spend all the extra beer money on panels ya know. My goal is not to feed back to the grid but to be totally self sufficient through most of the year and to also allow me to add air conditioning to my shop.
Many Thanks Andy for this perfect explain of the Victron DVCC feature. I like it too, will use it on my boat with LeadAcid and my Solar Setup..
one point: you have change to Augustiner🤣no Öttinger any more…BR Lars
Andreas, ich danke Dir für den Tipp mit dem Smartshunt auf DC Seite. Vielen Dank, und beste Grüße aus D.
Thanks Andy, I'm slowly learning all about Victron.
Like# 6, always during lunch! Did you say you plan to add another shunt to the DC Load? This is super interesting BTW!
I start balance at 2.50 and 3.65 max on a victron 100v/50amp 280ah lifepo4. I don't have enough input from solar to overheat the battery but even though it never says it's balancing it is. I wish I had your grid. All that free energy
Andy, thank you so much for listening to our requests and conducting these tests we didn't have time to conduct ourselves. Amazing content!
Thanks a lot, Ed. There is heaps more too come once we have setup the Seplos batteries and BMS. Lots to test and learn for all of us.
Thank again for your support!
Excellent knowledge share! Your videos are great in helping us put the final touches on our designs. Making me look again look at the value in the more expensive Victron equipment--we'll thought out options! You just need to know what all they CAN do and what it's called- DVCC in thus case, but whose got the time to figure it out and present it in a pre-digested, entertaining way😋 And you Andy do a great job at it-mistakes and all! Keep up the great job and I'll be sending you a 🍺
Always enjoy ur vids Andy, great info & content. Cheers
Congrats on 50K Subs.
Hi Andy, please can you make a video about your DC loads, what they are and how they're connected?
Cheers, great channel, I've watched every video.
Thanks Andy Great explanation of the DVCC week 2 with my solar living off gridd in Warwickshire having over specified my panel count off to buy an EV and maybe with the DVCC set up its time for an EV Scag ! finding your knowledge and advise a massive help cheers. Paul
Also when using can.bus bms controlled batteries, you can limit the battery voltage to stop charging with dvcc. Beyond this point would be great to have another video about “Using node-red to automatically stop charging when programmed soc is reached and still feeding all dc loads” :)
a never ending project :) und trotzdem lieben wir deinen content :)
I use this all the time to keep the efficiency of the multiplus above 90%. If I turn it off and let it charge at the full 35a (48/3000), it's around 85%, and as I only have 500w of solar, the battery is always charged from the grid.
I only turn if off if my ToU price is really low and not that long, then I don't care about the efficiency :).
I have 2 smart shunt for DVCC it doesn't work , I using node-red to take the ( DC load smart shunt + your max charge amps ) and set the max dvcc charge current .
Enjoy the sun. It is -7C at my house today and there is 3 inches of snow covering all my panels. ;-) Spring can't get here fast enough.
Half meter snow in couple days here.
Très intéressant ANDY, merci pour ce partage de connaissance.🐸👍
Hello
I was wondering how you got the remote console screen so large. I've been looking into it and a lot of people are wanting to do that also.
Maybe you could do a video on that.
Dvcc is great, but it could be great if this feature also worked in ESS mode, where feed in excess is activated. Victron do not think you should be able to turn down charge to battery. They just advice to buy a larger battery or do not do over panelling. I do over panelling to harvest enough sun in the darker periods, but this increase max current in a sunny day, which heat up battery. Makes no sense to charge fast in sunny days, you have a lot more hours to charge, so why not decrease current!
-4C here... Ruddy English winters
I actually used small water air cooler to bring down system temps in the summer days, I recommend you do the same but you need to put it outside it would not work on sticky days though. Better solution is to install 24000btu inverter Ac this will solve all the issues in your garage even 18000btu unit is enough you can use the last 10 amps to run it once temps settle power use will go down significantly.
I tested using an evaporative cooler here in the desert. You very much accelerate corrosion problems.
@@john_in_phoenix the space needs to be open so the air goes in and out without circululating inside and from far away using bernoulli effect.
@@MiranPayman oddly enough,, I know how it works
My outback system has current control where it only limits battery input current only but it doesn't work
Hi Andy, thanks for all your insights! I'm in the process of building my own battery for a Victron system using your video's. Some people talk about sanding the battery leads and busbars and putting some carbon paste in between to prevent corrosion and make a better connection. Can you ellaborate on that? And do you have a paste in mind? I cannot seem to find any suitable paste. Kind regards from windy Netherlands 🙂
Andy, what is DC POWER in your vrm?
DId you have to turn off your ve networking when turning on dvcc?
Could you briefly show an overview plan of what and how you connect the DC loads to your system? Somehow I'm on the hose what consumes so much on DC.
I think he's using another inverter to power some stuff in the house.
it is the hybrid of the off griders.... i guess i cant have it without the full gx conversion and at least one external victron shunt
Thanks
Thank you very much. Great support!
Great feature , nice .
Hello Andy. When I activate dvcc with my JK bms, it throttles my system to 2kw from 5kw. Even if I set my limit. I just can't find the error.
Very hard to tell from this info... do you use ESS?
what are DC loads?
electronics that run directly connected to your 48V battery bank?
Yes, 48V-5V converter, 48V-12V converter and a non-Victron inverter. Basically anything which is not a Multiplus or Quattro.
Nivea Video.
Wie hast du den dc load angeschlossen.ein zweiten smart shunt.
Given the sealed design of the prismatic LFP cells might it be feasible to place them a liquid cooling/warming bath to maintain a constant temp similar to what Tesla does?
If you add a Victron SmartShunt to the system to only show your DC loads, you can fix the problem with it only considering the total DC load.
I guess I should have waited until the end of the video before commending. :)
2kw DC load 😟 what's that ???
Shouldn't you allow full current under 50% or 75% state of charge and reduce above that. Can DVCC get enabled over a certain voltage?
That's what some Smart BMSs can do (e.g. REC BMS with 2A passive balancing and SMA Sunny Island/Victron compatibility etc). REC BMS massively reduces current at higher SOC.
Thanks!
Thank you very much for your support!
beautiful sunshine, but we're starving over here .. the sun hasnt been out in a week, What happened? I understand the tilt of the earth gives us less sunshine in the winter but why so many clouds? There was a healthy overcast/rain about once a week here during august september and even october, so much sunshine now we're lucky to get sunshine once a week! HELP please direct some sunshine over here , we're starving, no solar, no power! how many panels would it take to survive the winter gloom? i cant even imagine , can you do it? give us hope? PLEASE
Yesss
You win lol
@@garys-half-baked-offgrid-dream next time i will wait a couple of minutes special for you.
A Victron é péssima para informar os recursos disponíveis nos equipamentos e as vantagens de investir em um sistema com equipamentos da Victron. Já estou há vários dias tentando entender o que é preciso para ter esse gerenciamento de carregamento funcionando, e não consigo descobrir. Fui saber que a funcionalidade é esse DVCC através de um artigo em site de terceiros, e nem depois de descobrir que era essa funcionalidade que eu precisava eu consegui achar no site da Victron as informações necessárias para saber o que é preciso para ter o DVCC funcionando. Tenho um carregador solar MPPT da Victron, e não consigo sequer descobrir se ele é compatível com o DVCC! Se você puder depois, seria muito útil dizer o que foi preciso fazer para ativar essa funcionalidade. Que equipamentos são necessários, que equipamentos são compatíveis, como eles são conectados (por exemplo, só funciona com equipamentos que tenham VE.Can?)...
Clearly you need MOAR battery capacity, plus a air con for the battery/ controllers, to use the extra. :)
I did try to fiddle with charge current limiting through DVCC a while ago - but the limit i set were ignored by the system since i have excess DC-PV feed-in enabled. The reasoning seemed to be that the charge controllers always need to be able to supply their full power to enable exporting the excess. Of course the system can miraculously throttle the charge controllers to not exceed the feed-in limit i have set. Really seems more like a software issue to me - i'd be very happy if Victron would address that :/
Dc feedin really does mess things up with regards to charge current - all limits from the BMS are ignored. I’ve reported it and been dismissed by Victron. At the end of the day I just disabled dc feedin.
Hi Andy nice one again. Couldn't u reduce the charge current through the bms I understand that the bms is the last line of defense and the best method would be to reduce it from the inverter. But just wondering.
The BMS cannot regulate charging current, that is the task of the charger.
(OK, this BMS can actually do it if on cell hits 3.5V, it reduces the charging current to 10A)
@@OffGridGarageAustralia is it you on telegram. Just wondering if I got caught to a scammer.
Running these setting with the help of HA automations you wouldn't manually have do adjust nothing ... Nice.
What about installing a cooling system for the batteries ?
Cooling was deliberately not a design option. In/outlet, filters, fans, control electronic, maintenance. And fine dust everywhere.
Reducing the charge current is a great way to avoid all that extra gear and also take away stress from the battery.
I also don't need to adjust anything, I can leave the DVCC sit on 100A and it works great. Maybe in winter, I turn it of altogether and keep this as an option for summer only.
@@OffGridGarageAustralia could you use ITTT (If This Then That) from various external data sources to program your victron system as required?
Local weather forecast, actual temp sensed by BMS / Tags you got, expected forecast over few days). If the weather is going to be crap for a few days, get a max charge in (winter/bad weather run) or if it's hot, sunny in summer, looking to be sunny for a few days it can remotely send an updated DVCC limit you specify????
Just thinking a bit more outside the off grid/victron world here.....
Do you think we will ever get direct DC vehicle charging from victron?
No, this will never come. 400V/800V DC is far too dangerous and complicated as you need to communicate with the vehicle directly, bypassing the internal AC charger.
I watch so many of your video it's hard to believe I don't understand this, but I got new batteries, and they don't say in amps what I can charge at. I have 3 in series and So I do understand what the max charge amps is for one battery is the total for the bank (36v) but all the info says is "Charge Current Less Than 0.25CA". There is HR series upstandbattery 12V 18Ah. I charge them at .75Amps max thinking my max would be 0.25 per battery cell but I don't know. I don't trust myself lol they also charge fine at .70 amps.
Id says if you made an explanation vid for dummies on that you will get about 10-20 views from me alone lol
Next video: “let’s install air conditioning at the battery!” \o/
Sorry do you have the do the dvcc settings for every controller or is all the controllers controlled by another software ?
In this setup, Andy is using a RaspberryPi running VenusOS. A CerboGX by Victron would provide the same functionality. This is a Victron ecosystem feature. All of Andy's charge controllers, AC inverters and DC shunt are Victron devices (minus the 3000w inverter he is using for some house loads which shows as DC load in the control panel / VRM)
You set it in the control panel once, and it talks to and controls all of the Victron components in the system. No need to configure each component of the system individually.
@@CollinBaillie Many thanks, for clarifying :) was trying to understand so we would know what we would need to run such a system like this.. Thanks again 💯💯💯
dvcc regulates all chargers also the Multiplus (when my generator is running)
Ah, I was wondering if it limits the Multiplus too when charging. Thanks for that info, Martijn.
Thanks, Collin for this comprehensive answer.
Schönen 3. Advent
Das ist doch erst morgen, Walter.
Great video as always :-) i was woundering, all the victron that you have running, chargers. cerbo. vrm, raspy, volt monitors and so on, all the equpiment, including the bms´s how mouch power do it use, lets say days where the aint no solar so nearly no charging, how mouch do it drain your batteries ? all gadges is nice, but it must still use power to run.
Geni@l crack😊
with my old system of a different brand than yours This is a hidden secret adjustment within the midnite classic charge controller. I made a video about it called something like global current midnight classic don't overcharge
🐸 I like it
Ευχαριστούμε!
Thanks a lot! Great support and much appreciated.
Andy I was almost get scammed by someone pretending that was you
Always watch the channel name. They steal my logo but the channel name is very different.
@@OffGridGarageAustralia yes you are rite it was late night and I was surprised that I won something but it took only a couple of minutes to understand the scam
I told him send me a photo from the jk bms on the bench and he send me a photo from goggle
Hi Andy, I am a subscriber of your channel. I am having communications from someone purporting to be you regarding a give away via telegraph. Please confirm on here if you or anyone else has been approached in this way. Regards K.
Why don't you take some of your massive overcharging and run an air conditioning unit to cool your batteries?
Great idea. Use a heat pump to control the temp in the same way the Tesla does. That would make a great new project.
That's what I said in the video.
It took about 5 seconds between: shouldn't we use another smart shunt between the battery and the DC load. I wrote a comment immediately and continued the video. But hey, 5 seconds later you introduced the smart shunt and I deleted my comment.
off-Grid Garage are you hacked ?
Just the normal spoofing, stealing my logo and creating a new channel with a different name. Some people still fall for it. Pretty obvious, that it is spam...
@@OffGridGarageAustraliayes Andy, & what I really do hate is how You Tube allows & propagates Obvious Scamming Advertising such as the “Elon Musk ‘AI’ marketing super computing” SCAM!, that i have had come up regularly during watching your great channel & content. I wish there was a way to make You Tube more responsible/Liable for the obviously SCAMMING content they allow to propagate, I thought there would be some sort of laws & censorship to prevent this. I dont like making this sort of a comment on ur channel, but is there some way of reporting/stopping this type of media abuse? Cheers
Häng dir ein paar Power caps an die Batterie Seite der Laderegler kummer leo Schweiz
This would not make any difference at all.
@@OffGridGarageAustralia you sure try it
So i mean soon you can look, which battery you like to load and which not, in one day 🐬
At 38 °C I would use 20kW on AC🤣
That must be a very old AC then. Mine uses less than 500W in these conditions...
2kws for the house? You haven’t explained that. 😀
Only briefly in this video...
The Dutch are out, Brasil is out... Let get back to solar!
Hahaha, I'm not even watching this time.
@@OffGridGarageAustralia Germany and Australia were out even quicker. It is a very enjoyable WC experience all together with surprising teams. But amps are a serious matter. Cheers.
You need a ballast load, how about bitcoin mining!? A rig may pay for itself and for your offgrid system too!
Yep, got one here already.
I dont have DVCC facility. But I can limit battery charge current/Amp from JK Bms :)
Andy I think somebody using ur name just tried to scam me on telegram
VIDEO IDEA:
Hi Andy, would you consider hooking up your NoArk DC breaker and intentionally shorting a LiFePo4 cell, and testing its capacity afterward and seeing if it gets damaged? Maybe even multiple short/test cycles. Keep up the great informative videos. Cheers.
DVCC works very well with CERBO GX cordinating the various solar chargers. I use this to coordinate my 6x SmartSolar 100/50. What is nice is you can get it to read the voltage and current from BMS, much more accurate. But there is still an ongoing issue. Overnight, one or more SmartSolar can randomly go to sleep without waking up. The fix is easy, just need to disable and re-enable the controller. Luckily you can now perform this remotely via VRM. I make it a habit to check via Bluetooth or VRM each morning to ensure all my Victron SmartSolar solars are generating power and not sleeping... I have 2x other 150/100. Haven't yet connected to this setup yet as i use these with 4x 200w folding solar for my RV portable solar set-up. But shall try later to see if this sleeping / not waking up issues extends beyond the 100/50.
What's more impressive is, after all the batteries are fully charged, but only the inverter is utilising power from the solar that Cerbo GX can regulate amongst the 6x SmartSolar controller how much power each controller should generate, just to meet this load, without over charging the battery. It is quite amazing to see how this magically happens via the VRM portal. 😊👍
The key towards Offgrid solar success is tuning your system so that the energy is spread out over multiple peaks and not just a single peak from one controller, which would need to be throttled down via DVCC. Ideally you never want DVCC to kick in and intervene... as this is net loss of solar energy captured. You want to have as many SmartSolar as you can setup, each having a different and non-over lapping peak output coming through. You can strategically place different groups of panels connected to different SmartSolar to achieve this. This way, if you over size your solar and over size your battery, you can easily ride out bad weather and even continue to make good power on rainy and overcast days. 🌧️☔🌞😬💪💪💪
Hallo Andy, can you demonstrate the inportend parameters on solar charge controllers for agm battery,'s on 24 volt pleace. Greatings Jean Pierre
Nice but, why not automate this with e.q. node-red? Based on the temperature, load rate, dc usage you could set this value automatically.
Well…no kidding. DVCC is muy bueno for those of us with multiple types of chargers and loads. As you have demonstrated, shunts make it even smarter.
My system has 5kW alternator (Wakespeed regulator), 2 Multiplus’s (split phase on ac side but easy to parallel if shorepower isn’t split phase), and dual mppts for 800w (hey, it’s a sailboat, not a roof😎). I will take all the solar I can, then shore power, if available, then the alternator, if engine is on. I’ve only got 21kWh batt storage (25.6v) but air conditioning in summer on a sailboat without a generator is…marriage saving 😇. Next add-on will be wind.
Another great video. Thanks, again.
PS-one SPAT is on the way 🍺
Andy is it you on telegram or some scammer.
Don't worry most of us are staying quite cool over in the States, 48 degrees as well but in Fahrenheit! :D ~9 degrees Celsius.
-3C here in New England tonight. Try to keep my batteries warm in the off grid cabin while watching your channel. 😂🥶
@@jimmyg6215 yes that is chilly! Thanks!
I don't understand the need for DVCC when charging, as voltage alone can control the process. A CAN-enabled BMS may share voltage with Victron, but since the JK BMS's SoC is inaccurate for small currents, communicating via CAN doesn’t seem useful. Limiting charging current through DVCC on Victron may be a nice feature, but since it doesn’t automatically adjust based on battery temperature, it seems unnecessary. The charge controller can handle current limits just fine.
In a setup with one BMS, one inverter, and one solar charger, using BMS CAN and DVCC feels redundant. Am I missing something?
Hey Andy, why not try setting up the CANBUS of the JK BMS and see what comms you can get working between the Victron system and JK BMS? I can send you the CANBUS cable for the JK BMS, just send me your address. Thanks again for another great video.
Thanks Trevor. I have already done this in a past video. Communicating with only one BMS out of three, would not work well as it does not tell the full story about the battery.
@@OffGridGarageAustralia Thanks, need to go back and watch that one then. Interested in seeing what is possible and what is missing. Thanks for the reply.
The investment in your victron landscape is paying back itself. Very nice feature.
Learning a lot here .
Heat will degregate your batteries
Hi great video, please I have a question : my grid tie solar installation is with Huawei SUN2000-5KTL-L1
Which only use high (400v) voltage batteries but I will like to use 48v lithium battery with it, so please how can I make this combination work? Thanks in advance
Nice feature, this is why I like Victron, it has 100s of features that are only useful to a few people who never even knew they could benefit from such a feature. Although I do similar by limiting charge voltage, and that way you still get a fast charge early then just slows down and maybe never quite hits 100% - however you get full kick in for AC loads.
And I was so sure that would be the route you went down for these niggles, not the DVCC I knew nothing about. But that helps a solar upgrade for me without a BMS upgrade - 100A BMS on a 900ah system with the inverters bypassing the BMS as they draw more current.
Do you actually need two smart shunts, can´t you just move the DC load to the other side of the shunt (not battery side)? It appears odd the DC load is not separated from the current in-out of battery....it must be no? The other thing that would be useful is to be able to "dump" excess power (solar power) when batteries are full to a load such as water heater (in your case perhaps heat the pool in winter). How can this be achieved? I had planned to use a PLC/Raspi for this but if DVCC has support for such a thing it would be great. Currently designing a threephase (3x5kW) system using Quattros. Tempcontrol of battery is vital, at around 60deg C the LFP electrolyte begins to breakdown. Staying well away from this battery killer is wise.
Andy Of Australia, Hope you're having a good day.
how to split charging current to two parallel lithium battery pack?
like if i have 200A Solar charger connected to two parallel lithium battery, while the battery recommended current is 100 A?
Let there be sun
peace
Hi, I have two mppt connected to a colour control via ve direct. Could the dvcc system synchronise the charging of the two mppt to the battery? How could I set it up?
I currently manually set the maximum amps of each mppt to add up to the maximum current allowed by the battery.
Greetings and thank you very much for your video
Fascinating demo and info Andy! Thanks for that. Would it be possible to turn on charge current limiting based on battery temp, say a raspberry Canbus PLC that measures temp and sends a message to your DVCC or Charge controllers?
Maybe you might consider programming a 'dump load' with the MP2 when the batteries reach full charge so as no to waste excess solar? A HWS, etc.
Simply love your channel :D
And you are such a great presenter! :)
your batt box did not have ventilation built in so it collects heat. think like your solar was like water or wind . how would get rid of the excess power? use Home Assistant and a couple of esp32's to turn on fan's in the batt box , turn on ac to cool the batt and electronics when solar is to much. home assistant can integrate all of the items (bms , solar charge, inverter's, ect) onto 1 screen and can be installed on a raspi or esp32. and if you want manage from anywhere. so far i am using it to manage 3 smart thermostats (i built esp32) , 2 epever solar charge controllers and battery volts and current and can be used anywhere. phone, computer, pad or display on a wall. check out Home Assistant.
I almost spit out my "spat" when you said I have plenty of power I need to waste, I'll use it on the air conditioner.. 🤣 That's a great feeling eh? Awesome!
Yeah, it's a pretty good feeling not to be worried any more. But let's wait for winter...
about 40°C for the battery is perfectly fine. I would be more concerned about a charge higher then 0.6C for cycle life
Good to know! I didn't. Goes to show me yet again that I should RTFM...! I wonder, though, about the Orion DC-DC converter which does not have a charge current limit feature IIRC, so it likely would not be affected by this DVCC limitation unfortunately, would it? Or is there some secret feature that is to be revealed?
anyone know if there is a "DVCC"-type setting in the Conext equipment from Schneider?
Andy .. Why not supply the dc load before the shunt?..
is possible when the BMS communicates with VenusOS, for people where the shunts measures the current to and SOC of the battery this will not work.
How does the system dissipate all the unused excess energy coming from the panels?
any chance to control it, based on the battery temperature?
using for example a Victron temperature sensor.
that would be also great
Hallo evt ein Tipp: victron battery sense 😉
Viel Erfolg und mag es deine Videos anzuschauen Danke dafür 👍 Gruss aus Luxemburg
Danke Dir. Guck ich mir an!
Wieso Power caps um große Akku Lasten abzufangen
@OffGridGarageAustralia.. kummer leo aus dem weißen Wallis Schweiz