ฝัง
- เผยแพร่เมื่อ 11 ก.ย. 2024
- This is my first public review video. I got his power station in a sale for below €1300.- (~1300 $US) and wanted to share the strengths and weaknesses of the unit.
In total i find it to be a very nice piece of equipment, only the discharge efficiency on both AC and DC I found to be lacking.
In case there are some questions I left unanswered feel free to comment below, I'll try my best to re-test and answer open topics as far as I can.
I've received some new information from Fossibot regarding discharge efficiency and solar priority.
1.) regarding low discharge efficiency: 6 % of the nominal battery capacity are reserved in order to extend lifetime of the battery. Taking this into account the re-calculated discharge efficiency are 77% for AC discharge and 82% for DC discharge. Conversely the charging efficiency goes down to 91%.
2.) there is no solar priority at all and this can't be changed. Below 70 % SOC the solar input can charge in parallel to the AC input. Above 70% solar input is ignored and only AC input is used when both are connected.
I've also asked whether there would be a possibility change these parameters (also for future updates) but this was negated.
I appreciate the honesty and the fact we received this information, nevertheless I don't like the low efficiency of the unit and can't accept the fact that Fossibot gives priority to AC charging againt FREE solar charging.
Hello Mariok. I have just received my fossibot f2400 with 2 portable solar panels each 200 watts from fossibot. The unit baterry was 24% and it reached 100% of its capacity in 1 hour and 40 minutes. While at the beggining was charging with 1100 watts from the grid, as the battery was approaching the 100%, input watts were reducing from 1100 to almost half progressively. I managed to power a A/C toshiba ras 10 and a fujitsu ecolandia with no problems. A/Cs started with an output capacity to 1400 watts ended up to 750 steady watts each, with heating mode. Furthermore i powered a miele freezer, all night and it consumed steady 45 watts. Last but not least today i tested the solar panels. Each one was giving from 140 to 160 watts of input, and both in series was reaching almost 300 watts and was working really nice!! All and all the first impressions are really possitive. The only thing i would like to have as an option is the ability to add another battery like bluetti does, so as to increase a bit the storage abillity of the unit.!! Be safe and healthy. Greeting from Greece - Athens.
Hi George Alex, good to hear you're received your unit. Yes, from about 85% up the charging speed is limited to 550W max. I also did some further testing in the meantime regarding standby efficiency - the Fossibot consumes about 1.5% or around 30W when the inverter is on but no load is connected. For DC output it's around 10W. After about 5 hours with no load the unit does shut off completely. This could be bad if you want to use it unsupervised and have a load that will only turn on periodically or has a very low power draw. I didn't check yet whether the same thing happens in UPS mode. Hope you have a good time with your unit and greetings to Greece from Austria!
@@mariokleidosty9175 Hi Mariok, you are right, i just did the same thing with the shut off time! That indeed means ,system is not able to work as a stand alone unsupervised unit. I am thinking ways to overpass it. Another user reported that if you have solar panels connected all the time, during night system beeps all the time. Ii dont think that this is a problem if you have the unit in a isolated place, but inside a room it may be irritating and annoying. Thank you very much for sharing info! A last question. I am thinking of buying a steady solar panel for the roof around 400-450watts. Could you recommend something which fulfills the demanding specs of the unit? voc etc etc
@george alex I'm using 400W panels for a larger system on my house but these have a VOC of 50V so they would be flying pretty lose to the sun. I found others though that should work nicely: lieckipedia.online/downloads/Solarmodule/Module_%C3%BCber_305_W/EcoDelta/ECO-395-415M-60SB_30mm.pdf. Hope the link doesn't get removed on my own video ;-). Otherwise just google EcoDelta ECO-395-415M-60SB. These are 415W modules with a VOC of 46.7 V. Also pretty close to the maximum but I think in Greece you should be safe. Alternatively you could use these: Astronergy 400 Watt CHSM54M-HC. Their voltage is much lower but I suspect you may loose some of their capacity because the input on the fossibot should be limited to 10 amps and these make 12.96 amps at nominal capacity. As solar panels rarely reach nominal power though I guess the tradeoff would be fine though.
@@mariokleidosty9175 Thank you very much Mariok!!! We have ecodelta panels available in Greece!!
@@mariokleidosty9175Starts off hearing how your english (also called american) sounds and instantly thought oh this is gonna be one of them weird machines. Then you say "as im in europe" I went, I knew it was gonna be those "wrong" weird looking plugs😅
Thank you, that was very helpful, especially in understanding how the DC charge input deals with the different inputs - battery or solar.
Best wishes from UK.
Hi Mario, great review. I also have this Fossibot 2400 and have been testing it for a month now. Some issues I have are : 1 - When you attach a (fixed) solar panel (I use 1 spare one of my roof) during day start and day end the Fossibot will beep and click for a long time trying to attach the solar panel. This behaviour is similar as my normal solar converter trying to start up but that one has a 1 minute grace period between the tries. I solved this by adding a DC switch that connects the panel when there is enough power and disconnects a bit early when power drops.
2 - The FANS are pretty quiet (i.e. compared to other Powerstations) however I question their quality over time but I guess we have to see how that evolves.
3 - This is a major issue (at least on my device). When I don't have anything connected, enable the 230 AC output using the push button above the 3 outputs. Then I measure about 90 Volts AC voltage between te earth pin and the phase or null at the AC input side (so just with the charge cable plugged into the device but not in wall outlet. I had my groundbreaker trip already many times because of this. (Can you please test this with your unit to see if this is something general ? ) (The last point has been addressed, the issue is as designed, the current is very low and isn't a safety issue. Fossibot has given a reply on the other video MarioK made about this).
Hello AixbO, this is really concerning. I immediately checked my unit and in my case there's even 112V AC in the input port when the inverter is turned on. In my case the ELCB never triggered so this seems to be very low current. I've connected a lightbulb to the connection and it doesn't turn on so very likely this could shock but not kill anybody.
Just realized I can measure the amps. When the lightbulb is connected the voltage drops to 105V and a current of around 4mA is flowing. I'm not an expert but I'm pretty sure this is below what's actually dangerous. Will inform myself further on the topic though and update here. If anybody knows more than me on this you're very welcome to add your expertise.
@@mariokleidosty9175 I also measured the current which was 8.5 mA at 93V AC. So indeed this seems to be a "leak" current. It seems this "extra" leak triggers my ELCB which is rated at 30mA (but could already trigger anywhere between 15 and 30 mA). I guess some other devices on the same ELCB breaker might also leak a bit. I sent an email to fossibot support to see if this is expected behaviour. In the worst case I might need to put 1 group under a single ELCB (current setup uses 1 for 4 normal groups and 1 for 4 "wet" groups).
Fossibot replied to my message and asked for a video about the issue so I made one: th-cam.com/video/trRKFRdY1fI/w-d-xo.html
Hello friend, can you send me a link to the dc switch which you used to solve the beep sounds from fossibot when there is or not enough power for solar charging?
Thank you for those interesting tests. It convinced me to buy one. Greetings from Germany.
You're very welcome. Grüße aus Österreich.
Thanks for the test. I want to make some remarks.
You are not measuring charge efficiency and wattage losses, you only see some wattage mistake, and it's constant. To check the charge efficiency you can measure how much energy this station consumes during charging from 0% to 100% with different input wattage. I'm pretty sure the fastest input isn't the most efficient.
You didn't show the voltage after exceeding the maximum output power. It should get lower.
0.2C is an industry standard for testing batteries without DC/DC converter or DC-AC inverter. Inverter consumes some electricity, the station itself consumes some power when it's turned on as well, so it may provide higher efficiency with higher loads. Oh, I see you understand it and you have another video about it. Anyway it may be interesting to see the results from different discharge wattage.
Also thanks for calculating the round trip efficiency - it's important thing, but almost no one shows it in reviews.
Hallo Mario, mal eine Frage. Wenn man die Fossibot mit einem der neuerdings beliebten regelbaren Grid Tie inverter zum Zweck der Nachteinspeisung nutzen würde, machte es da Sinn, diesen mit dem 12V 25A XT zu verbinden. Die Dinger sind ja regelbar und das 500W Modell soll ja bis 35A vertragen. Wäre also bei zb 120W Einspeisung 10A und kein Problem soweit ich das verstehe. Zuleitung + mit zusätzlicher Sicherung 30A, da sollte ja nix passieren können.
Hallo Thomas, kann man technisch sicher machen. Aus wirtschaftlicher Sicht ist das aber leider absoluter Irrsinn. Wenn du sowas machen willst dann besorg dir besser die billigste 12V LiFePo4 Batterie die du finden kannst. Da hast du keine zusätzlichen Umwandlungsverluste und die Kosten pro Ladezyklus sind auch ein Bruchteil. Für eine derartige Anwendung ist eine Powerstation einfach zu schade/zu teuer. Abgesehen davon wird es generell extrem schwer sein die Kosten für eine solche Minimaleinspeisung jemals zu amortisieren. Mein persönliches Fazit: technisch absolut interessant, macht aber keinen Sinn.
@@mariokleidosty9175 Hallo Mario, das ist mir komplett bewusst, aber da ich das Teil in 1 Linie als Notbackup verwenden will, ich eine PV am Dach habe wo meistens genug Überschuss da ist und ich das Teil einfach nur etwas besser ausnutzen möchte als Handys damit laden, wollte ich das so machen. Dass eine kleine Lifepo4 mit ein paar Kabeln die Hälfte kostet war mir schon klar, rein wirtschaftlich betrachtet minimiere ich also nur die Kaufpreiskosten 😉 mit dem Nebeneffekt notstromfähig zu sein. Danke für deine rasche Antwort
@@thomasjanecek5478 wenn du es so siehst ist da natürlich eine Variante wobei ich erst durchrechnen müsste ob sich bei 120W Einspeisung die Mehrkosten für den Einspeiseregler/Wechselrichter jemals rentieren kann. Zusätzlich hast du am Morgen eine leere Batterie, sollte da gerade ein Netzausfall sein hast du eine Powerstation mit USV Funktion aber trotzdem keinen Strom 😅. Müsstest halt auch noch die Wettervorhersage einbeziehen und eventuell noch weniger oder gar nicht einspeisen wenn am nächsten Tag wenig Sonne kommt. Ich habe mir eine Inselanlage gebaut mit 3,2kW und 30kWh und selbst das geht im Winter nicht ohne dass sich die Batterien entleeren. Der Standby-Verbrauch von meinem Wechselrichter sind dabei nur zwischen 30 und 40W aber das ständig und bei einer Woche Neben/Wolken...
Frage habe heute die Fossi bekommen, lädt schnell bis 99%, dann bleibt dabei, nach 3 Stunden keine Änderung, fährt egal mit welcher Ladestufe mit 50% der jeweiligen weiter rein, nur es ändert sich nix, weder an den 99% noch an der angezeigten Restladezeit der jeweiligen Ladestufe. (Zw. 6 und 10 Minuten)
Okay, das sollte nicht sein. Meine braucht zwar auch länger für das letzte bisschen aber dann erreicht sie schon die 100% und der Input geht auf 0. Habe allerdings gesehen dass sie dann später nochmal ein wenig Strom zieht, war aber nur kurz. Hast du die Ausgänge aktiv während dem Laden? Sonst kannst du Mal versuchen sie testweise abzuschalten ob du dann die 100% erreichst.
@@mariokleidosty9175 Guten Abend, Ausgänge nicht aktiv. Gerät mal komplett ausgeschaltet vom Netz getrennt, wieder angesteckt selbes Ergebnis.
Werde sie mal entleeren bis sie abschaltet und dann neu laden.
Hallo Thomas, das kann auf keinen Fall schaden, mit ein bisschen Glück ist es nur ein Kalibrierungsproblem der Ladestandsanzeige. Normalerweise wird hier ja über einen Energiezähler gemessen wieviel Energie entnommen/geladen wird und damit die Anzeige berechnet. Wenn der Ausgangswert nicht stimmt kann es zu solchem Verhalten kommen. Billige Geräte verwenden manchmal sogar nur die Batteriespannung als Indikation, das ist dann aber, speziell bei LiFePo4 Batterien extrem ungenau da die Kennlinie in den Randbereichen sehr steil und dazwischen sehr flach ist. Sag Bescheid ob sich die Anzeige normalisiert wenn du die Powerstation einfach mal ein paar Stunden am Netz lässt.
Hallo Mario, Entladen und Laden hat geholfen, dürfte sich kalibriert haben. Ist auf 100% gegangen und hat die Ladung beendet.
Cool, nice and great! The best review. Thanks
Hello Mariok. I tested dual charging with my fossibot 2400 today and it was working just fine. I did it the the other way around than you. I was charging the unit with my luxor solar panel at around 400 watts and i pluged in the cable for charging from the grid too. The unit display of watts input started to climb until it reached 1500 watts of input, so i guess at least my unit can dual charge just fine.
Hello George, are you sure you were still charging from solar? I had a meter connected to the AC input as well as the DC input and as soon as the AC input was on the power from the DC input went to 0 while all the input came from AC. I'm not saying you can't have both connected at the same time but at least my unit didn't utilize the solar input when AC was connected.
@@mariokleidosty9175 Hi Mariok, All times i use AC input the max watts i had in the display was 1100, when the battery was below 85%. When battery is from 85 to 100% the system reduced the displayed watts to almost half. Today, we had a sunny day and i was charging using the solar input from 20% to 45%. Then i remembered that its not possible to dual charge and i thought i would give it a try. So i pluggged the AC input and the fossibot didnt stop at 1100 watts as it did during your presentation, but went up to almost 1480 - 1500 watts of input and stayed there as long as i had the AC pluged. When i removed it it went back to almost 400 watts of input. I can double check if you like and take a short video of it.
@@georgealex8306 I do believe you, it's just that mine behaved differently. I'll have to try myself, might be there are different software versions of the unit.
@@mariokleidosty9175 update. I went to double check the dual charging. The battery was 75 percent full, i was charging with 380 watts from solar and i plugged the AC input! Magic, it behaved as you describe, it didnt want to go more than 1100 watts! But because i know how it had behaved when battery was 35% full, i strongly believe that it depends on the the battery, the same way as the AC input behaves differently charging to 1100 watts from 0-85% of the battery and 550 watts from 85-100%. If we have sunshine tomorrow , i will use the batterry at night and redo the test tomorrow!
I just tested it again and my unit still won't accept any input from the DC port as soon as AC input is active. I'll try contacting Fossibot about this issue though I doubt there is a possibility to update the firmware if it's the reason.
Hi Mariok, i hope you are doing fine. I have a question conserning fossibot. Whats the solar input for fossibot? 50 volts, 20A or 50 volts 15A? Do you know if we put more than 20A solar input if the fossibot has an internal mechanism to reduce or not take into consideration the more Amps or we will make a damage to the machine? Fossibot claims that we can connect two of their 2x200 watts panel in series or in parallel. Their solar panels have VOC 21,6 Current at max Imp 11.1A and Short circuit current Lsc 13,3 A, so if we connect them in parallel current will exceed 20A, which is the limit in Fossibot. How do fossibot propose something which may be Dangerous? I have read that ANKER 767 has a mechanism that ignores the extra A as a solar input. Do you think that may be the case with fossibot too? Can i connect in parallel their 2x200 watts solar panels?
Thanks in advance for your info!
Hello George, of course I can't say 100% for sure if Fossibot doesn't confirm but all other solar inputs I've seen and tested up to now didn't have an issue with higher current (as long as it's not extremely high). Only when the input voltage is too high many will have a problem.
Usually the input will just restrict the amperage going into the MPPT controller. If possible though I always prefer to have panels in series as there are less losses through the wiring. Of course this only makes sense when both panels are oriented the same and no shading occurs.
Thank you, very good testing - want tovdo exactly that! I really struggle with the too low capacity tests. My powerstations with Liion (Bridna) delivers me 87% of the 2200Wh with 600W load. I must assume - as Dc test is also low capacity - they use a 1600 to 1700Wh battery and sell as 2050Wh.
Hello Andy, I don't think the manufacturers really use smaller batteries than advertised but some seem to restrict the usably capacity in order to prolong lifetime. In combination with the losses of the inverters and/or DC regulation circuitry this reduces the effective capacity a lot. I just made a video on this topic: th-cam.com/video/_ZEJIya0F3Q/w-d-xo.html
@@mariokleidosty9175 I know what you mean. I build Lifepo packs by my own and set the Bms to cut off power at 12,4V when around 10% is left in the cells. Did you know the DC voltage when the system cuts off? I think about buy one and dismantle it to test the cells at my electronic load.
@@andylambertz84 As I intend to give the unit to my sister as a UPS for their heating system's pump I didn't disassemle the unit. I've buildt my own 8 and 16S LiFePo batteries as well though so I'm pretty sure they set very conservative limits. I'd really appreciate it if manufacturers wold give a real usable capacity und "nominal" conditions.
Mario, mir fällt grad auf wir können ja deutsch schreiben...😅 Also ich überlege jetzt ernsthaft meine Liion Station zu verkaufemn, die hier zu holen und mal die Zellen einzeln zu vermessen - an den Polen, ohne Bms Schutz. Ich lasse es Dich wissen!
@@andylambertz84 geht natürlich auch :-). Willst du die Kapazität der Batterie selbst nachmessen? Laut Datenblatt müsste es ein 16S System sein, nominale Spannung 51,2V bestehend aus 40135er Zellen mit je 20Ah. Laut Adam Riese also 32 Zellen als 16S2P.
Hello @mariokleidosty9175
Could not find any references about using F2400 with a gas boiler like Vaillant. I'm concerned about not having the right conditions for flame detection. Have you any hints on this topic?
Hello, I'm not an expert on gas boilers but the ones I know detect the presence of a flame by ionization or by a bimetal thermostat. Both of these methods do not depend on the type of power supply. For the boiler it shouldn't make any difference where the power comes from. If you connect more than one device to any power station though you should definitely use a grounding plug in combination with an RCD for safety. There's plenty of videos around this topic already so I don't plan on making my own at the moment. The easiest way would be to use an inline RCD in between the powerstation and any devices.
The most important factor for me is the 12v capacity and I tested it with a car bulb on the 25A output. The 25w car bulb ran for 52.5h which sadly is only 64.2% of the advertised capacity. I've run similar tests on smaller powerstations and got 106% for the Jackery 500 and even 119% for a discontinued product from Golabs. I really don't care much for the inverter and wanted a powerstation for my mini van with a XT60/90 output and low self discharge, guess I have to return this unit if it's the same on the 10A output.
Hallo Thomas, ich nehme an du sprichst deutsch. Ich hatte auch ein Gerät von Fossibot wo die Kapazität nicht gepasst hat, würde aber problemlos ausgetauscht. Wenn du in erster Linie 12V brauchst solltest du unbedingt ein Gerät nehmen das auch 12V Batteriespannung hat da damit die Umwandlungsverluste wegfallen. Ich kenne leider keine Powerstation über 500Wh die mit so geringer Batteriespannung arbeitet. Für deine Anwendung wäre eine reine 12V LFP Batterie mit einem externen Laderegler vermutlich das Optimum. 25W Entnahmeleistung für lange Zeit sind definitiv so ziemlich die ungünstigste Anwendung für größere Powerstations.
@@mariokleidosty9175 Hey Mario danke für die Antwort. Das hatte ich so gar nicht auf dem Radar, aber das ist mir jetzt auch bewusst geworden. Nach den guten Erfahrungen mit den kleineren Powerstations dachte ich halt, dass ich mir damit die ganzen Einzelkomponenten sparen könnte und alles in einem relativ kompakten Gehäuse unterbringe. Mit DC/DC + MPPT und nem schnellen AC charger ist man da ja ohne Batterie schon schnell bei über 1000€ angelangt. Ach ja.. die eierlegende Wollmilchsau gibt's halt leider nicht 😓
Hi Mario. Thank you, as ever, for sharing your expertise.
I have one question regarding the Fossibot 2400. I have one of these but am finding that it charges too slowly for my needs via a 400w panel.
Am i able to 'overpanel' this unit by connecting 2 x 400w panels in parallel, or will that cause problems due to the high amperage?
Theoretically you shouldn't have any problem as the Fossibot will limit the current it takes in anyway. I personally would prefer putting the panels in series though, this way there are less losses in the wiring. Just make sure you don't exceed the maximum open circuit voltage. Theoretically there is a limit for overpanelling as well but with two 400W panels I don't expect any issues, especially in series.
@@mariokleidosty9175 Thanks again Mario! I prefer wiring panels in series too, but the problem I'm having is that I can't find 400w panels will low enough voltage (VOC) to stay within the 50 volts maximum for the Fossibot - hence considering parallel as an alternative option.
@@MrPaddy924 indeed, sorry, forgot the low input limit of the F2400 as I last tested the F3600 where the limit is a lot higher. This one will take up to 160V.
Thank you!
Hallo Mario, hast du auch getestet, wieviel Watt die fossi benötigt um zu funktionieren. Ich meine damit, ein Kühlschrank benötigt 60 Watt, bei ca 1800 kwh würde man rund 30 Std auskommen. Wie hoch ist der Selbstverbrauch? danke
Habe ich getestet, ja. Genau kann ich es nicht sagen weil sie sich nach ein paar Stunden ohne Last abschaltet aber der Eigenverbrauch liegt bei ca. 1,5% pro Stunde, also ca. 20-25W. Dein Kühlschrank sollte also so ca einen Tag lang damit laufen.
Are we sure that with this kind of discharge efficiency, the real battery is 2048? I would expect something higher than that for a 2048 power station. Furthermore, as i have bought the same system with 2 x 200 fossibot solar panels, i would like to see, how it performs with solar input.
In Greece we have almost 300 days of sun per year, so it would be great to charge the unit, totally free from the sun!! Great review my griend!! Thank you very much for your info!! last question, if something goes wrong with the unit, what support do we have? warranty 2 years but where should i call if i need it?
Hello, i'm sure that the nominal capacity of the battery is what they say but I think the software limits the usable capacity by e.g. 5-10% in order to increase the lifetime. This would explain both the bad discharge efficiency as well as the extremely good charging efficiency.
I'll definitely do some solar testing only currently I'm at work while the sun is shining and weather forecast for the weekend is pretty bad. I'll try hooking up both a flexible panel as well as a residential panel as soon as conditions are okay for it. Thanks for your comment, I'll keep updating and extending information as I can get it.
Great review👍🤙
Just wondering if you could ttell me if ithere would be any problems running a 12 compressor cooler/fridge on this Fossibot? I have a Dometic CFX3 55im and 25 and was wondering if the Fossibot would shut down using the 12 socket if there is no power draw for a certain period of time?
Appreciate your help 😀
I've been checking the idle power consumption and found that somewhere between 4 and 6 hours with no consumption the unit turned off. Didn't matter whether it was AC or DC output. I doubt your fridges will not start the compressor for such long periods so I wouldn't expect any issues here.
@@mariokleidosty9175 thanks so much for the quick reply, greatly appreciated! 👍 That's good to know. On order 😀
Cheers
So, nachdem gestern meine kam hab ich heute mit 600W einen Entladetest AC gemacht: 1,72Kwh bis Abschaltung. Vollständiges wiederaufladen brauchte bei voller Leistung (1100W) 2,17Kwh. Was mich stört: 1. Das Display ist umheimlich schwer abzulesen, geht nur halbwegs gut von oben rechts des Displays? Und der Geruch, wenn die Station warm wird - nach Plastik/Elektronik. Habt ihr das beides auch? Ansonsten: die Lüfter sind echt leise, zumindest bei 600W. Beim laden mit 1100W war daneben sitzen und arbeiten schon störend. Weitere Tests folgen, ich würd sie ja auch gern aufmachen. Ich versuche mich dann auch mal an einem Video 😉
Da hast du auf jeden Fall mehr heraus bekommen als ich, schau Mal den angepinnten Kommentar an, laut Fossibot sind 6% der Batterie als Reserve gesperrt. Wenn du ein Video machst sag bescheid, wird gerne verlinkt.
Ich nehme an der Wechselrichter hat bei 370W Last wie bei deinem Test einen deutlich schlechteren Wirkungsgrad. Am besten mache ich den Test nochmal mit 370W. Und das mit den 6% juckt mich zu prüfen... Was sagst Du zu Display und Geruch?
@@andylambertz84 Display ist bei mir in Ordnung und Geruch wäre mir keiner aufgefallen. Mache meine Videos aber im Keller, kann sein dass es da weniger auffällt ☺️
Test mit 360W Last (25A Victron Ladegerät an 2. Lifepo Akku) nach 4:45 Std beendet - 1,71Kwh. Was sagt uns das jetzt? Entlädt meiner tiefer, sind die Zellen besser?
Das Victron Ladegerät hat übrigens nen Wirkungsgrad von 92% (kein Lüfter da wasserdicht). Also hat die Station höchstens 90%, was bei den 2,17Kwh vom aufladen 1,95Kwh eingeladene Leistung heißen würde. Die 1,71Kwh daraus wären ein Wechselrichter-Wirkungsgrad von 87,7%. Das paßt schon alles. Allerdings bleiben keine 6% im Akku, der macht den leer.
@@andylambertz84 Fossibot hat für meine Antwort nach der Seriennummer gefragt. Es kann durchaus sein dass es hier Unterschiede von Gerät zu Gerät gibt. Eventuell gelten die 6% nur für meine. Auf der Anzeige geht sie aber auch auf 0 runter, das ist ja nur eine Frage der Kalibrierung. Ich werde nochmal mit einer anderen Last testen, vielleicht kommt ja diesmal mehr raus obwohl ich es nicht glaube.
I ordered one today, for E850. 1.5kwh is not as good as some others but the price makes up for it. I'm gonna try to use some solar energy after sunset. I have 32 panels and I just can't put it all to good use. I put too much back into the grid. Maybe I can get 2 hours of PC gaming out of this battery!
What kind of panels are these 32 you're talking about? I have about 3.2kWp installed on my house as an off-grid system and in a sunny day these produce about 15-20 kWh. So the Fossibot would definitely be a drop on a hot stone if you want to increase self-consumption. Apart from that two hours of pc gaming should definitely be fine unless you're running something like an i9 with an RTX4090 on a triple monitor setup 😁
@@mariokleidosty9175 32 large panels. 3 sets ranging from 275wp panels up to 375wp panels. On a really good day they make close to 50kwh on a day. But on avarage a lot less ofcourse. In terms of peak power we're talking 6000W is the most I saw going back into the grid.
I would like a big battery build into my house but my outdated and small electrical panel needs a lot of work and momey.
So I'll start playing around with this small fossibot to see what I can manage. I also sometimes want to run out aircon after sunset out of this battery.
Every little bit helps.
I have an model3 car but don't drive enough to put my solar power into. Only once a week 20kwh maybe.
Have you maybe altered appliances to work on DC directly instead of through a 230AC output? Like a TV or something.
@@AERONOOB no, I haven't modified any devices, I use large LFP batteries and use a 5 kW Inverter to power mainly my heat-pump for heating the house and hot water as well as washing machine and dryer. When I expect the batteries to get full I run a Micro-Inverter to supply power to my normal electrical panel. By this I can for example cover the base load of my house during the night.
@@mariokleidosty9175 I just got my F2400 delivered. Playing with it now, I notice while charging that from 90% and up, the charging power drops from what I set it to. But when I turn up the dial, the charging power goes up, but not as far as I set it.
Right now : SOC 95% Dial is set at 1100W and the Input shows 552W. (charging from 230V grid) Do you know if this is how they should function?
@@AERONOOB this is normal behaviour, nearly every powerstation does this in order to protect the batteries. Lithium batteries are usually charged according to CCCV curve. Meaning it will first charge at the maximum current until it reaches nominal voltage and then the current drops until the battery is full.
Hi, thank you for video. I would like to ask you if you think this would be good option for off grid tiny cabin. It would be turned on for few days, solar panel would be plugged in. Maybe I would connect sockets in cabin to AC output of power station. Highest power I would need is 1000W for vacuum cleaner. Or would be better to build off grid solar system from Lifepo4 battery and another components? Thank you
Hello Jan, this will very much depend on your energy needs and the solar gains you can achieve. The Fossibot can provide about 1.7kWh of energy on average. If you have sufficient solar input to recharge it every day and won't run large appliances for a long time this could be absolutely enough. When the weather is bad and you can't recharge for a day or two the standby consumption of the Fossibot alone would drain a big part of the battery. First you should write down what you want to run and how much energy this consumes over e.g. 24 hours. If this is less than 50% of the battery capacity I personally would consider the battery large enough. Of course this is different if you could recharge by other means in an emergency. Sorry, this is a pretty complicated topic with lots of factors influencing the decision. May be worth its own video :-)
@@mariokleidosty9175 thank you for reply. I think 1.7kWh would be enough. If I built custom system I would probably buy 2kWh battery as well. Do you know is there is also self consumption in simple DIY system? Is Fossibot loud when stand by with AC on and output is under 100W? Thanks
@@JanSur Any inverter that is on will consume power. How much will depend on the model of the inverter. Generally larger inverters will consume more power while more expensive ones tend to be more efficient as well. At 100W consumption the Fossibot is very silent, depending on the temperature the fan can even be completely off.
@@mariokleidosty9175 maybe I should figure out how to run only on DC what would be more efficient..stand by on DC is less than 1%/hour...btw, what is a cycle? If is battery discharged let's say to 70% and then charged to 100 is that cycle? Or cycle is when is battery comply discharged?
@@JanSur DC is definitely more efficient. If you run an external 12V battery there would be no losses at all. A cycle is usually defined as somewhere between 80 and 100% of discharge. Keeping 20% charge in the battery will drastically increase lifetime but even at 100% depth of discharge LiFePo4 batteries usually have a lifetime of around 3000 cycles until they get to 80% remaining capacity.
Anyone have a issue with it cutting off? I got mine yesterday. Charged it up from 33% to 49% with solar(2 jjn 200w bi facial panels, parallel) charged it from 49% to 100% via ac input.
Its in the house. No solar or ac input now. Plugged in a fan thats only pulling 22w-25w. Went to bed at 10pm. Came down stairs stairs at 7am and the fossibot and fan are both off. Cut the fossibot back on it still had 86% left.
I didn't test with a low constant load but at no load connected my unit definitely turned off after a few hours. There for sure is a threshold where the Fossibot turns off after a long time but I can't tell you exactly at which wattage it will happen. It seems that American models are different as I've seen test where the unit was still on after 24 hours of standby, I assume there are several firmware versions around with different behaviour.
@@mariokleidosty9175 thank for the reply. I am running it again while I am at the house today to see if it repeats and or if it gives any kind of warning/ audible notification. I am getting close to the same % drawn from the unit. Should know in the next hour or 2.
I also noticed when I had it hooked to my self made solar generator. The fossibot showed it was drawing only 26w-27w but the inverter on my built setup was showing 80w-105w of output
@@hillybilliescrypto.4965 @Hillybillies Crypto. If you watch my video you can see that the self-consumption of the AC charging circuit is always around 60W independent of charging speed. The minimum charging speed is 300W though so not sure how you managed to charge that slowly?
@@mariokleidosty9175 I hooked up to solar late in the afternoon. My 2 panels were only putting about 230w-255w for maybe 45min -1.15 hours. When I plugged into the wall it charged very fast till 85% then it dropped from the 1.1k watts to 500ish watts.