Frustrated (But found out is was a lack of understanding the correct operation and now all is good) and Disappointed - Charging from Solar AC180

Problem solved, I think. I wont know for sure until a sunny day to see if I get more than 200w from the two panels. Thanks for your help!

After the assistance from everyone, I am happy to say that my AC180 is successfully hooked up to my two 200w solar panels (in series) and is now flying! Im getting 270w on a partly cloudy day. However, I did experience hiccup - the AC180 was down to zero charge. Until it reached a 10% charge, it seemed to charge very slowly. Once it hit 11% it started charging rapidly. Strange but lesson learned!

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So are you saying you are not a “victim of false advertising” or needing to return your correctly functioning AC180 and now understand its proper operation?


That’ s exactly what Im saying.

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Ill forgive your typo, if you excuse mine.

Of course. I am glad you are more comfortable with your purchase. Bad feeling spending that kind of money and not getting something to work.

I admit I get frustrated easily - I just want things to work. My biggest pet peeve is directions, or the lack of them. Why couldnt Bluetti just say how to hook up solar panels in series or parallel in the manual. The solar panels themselves had no manual at all. But anyway, I am very happy that after hours of trying to figure it out by doing online research, I finally posted to this forum for help.

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The products are produced in China and distributed throughout the world. At times the language translation leaves a little to be desired but with product forums to assist with info, there is actually more information available than ever but finding it when you want it can be a little frustrating at times.

Isnt everything made in China?
Lol. Yes thank god for the forum. Since following everyones advice and switching the solar panels to a parallel setup, it has been great. Today, the two panels actually were putting out 460 watts. Thats amazing considering that each panel is only rated at 200w. So yes, very happy now. I was on the verge of returning everything and giving up. My sincere thanks for all the help.

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460w with 2 panels of 200w : this is the magic of bifacial solar panels. Good choice!

No kidding! It seemed to make sense to get bifacial. Believe me, I spent hours researching what panels to buy. The price was the lowest I could find online for rigid 200w panels. The fact that they were bifacial made it a steal. I only paid $165 per panel on Amazon Business, plus tax. That seemed a steal to me after I did the research. The snow we have here in Maine is an incredible reflector. It blasts the sunlight, and definitely takes advantage of the bifacial feature. In fact, I bet I wont reach these levels of output once the snow is gone. Its funny because I was thinking I wouldnt get much output in the dead of Winter. Boy was I wrong! Now, I love the snow!
Anyway, I spent about $1000 for the Bluetti AC180 and panels, which included an extended warranty and tax. I can see right now, that I can cut my electric bill by 50% using this setup (I live in a small mobile home). Now Im thinking about one more panel. Its addictive! I would love to tie the Bluetti into my electrical grid. Is that even possible with the AC180?

You have a 60v 500w input limit so another panel would put you way over that. Time to upgrade to a bigger sogen already :slight_smile: Yep, solar is addictive.

Yes, Ive been thinking of getting another AC180 already. My problem now is that I have more power output than the AC180 can store. If I had an additional battery, I think the two solar panels would be enough. But it seemed like just getting another AC180 would be cheaper than the battery. What do you think?

A 100 amp12.8v LifePO4 battery for $200 will give you an additional1,280wh, combined with an inexpensive solar charger and another solar panel that might be an option to consider. Your AC180 can input 60v so you could in theory add up to 4 batteries in series for a whopping 5100wh! Of course that would require a better charge controller and more panels :slight_smile:

So its not possible to just plug in an extra battery to the AC180 and charge it that way?

Not directly. You could charge the extra battery with an AC charger plugged into the AC180 but that will waste a lot of power going through the inverter and charger if you are trying to maximize the amount of solar you want to gather per day.

If you’ve been seriously thinking about another solgen I would suggest you look into the AC200L. For the extra cost for the unit you’d get a larger inverter (2400 watts), larger battery (2048 Wh), and a very considerable boost to 1200 watts solar input. If you did take that path, put your solar on the AC200L (and add more panels if/when you can), and then charge the AC180 from the AC200L. You get both charged via solar, and you can suck in all the electric sunlight that you can. :+1:

if your home is connected to the electricity network and you have an electricity supplier, and you want to reduce your bill by injecting more electricity for self-consumption, you can connect a grid tie converter for example to the 12V socket of your AC180 which will allow you to inject a maximum of 120W into your home’s electrical network. example
You will be able to adjust the injected power to compensate for your minimum electricity consumption and your Home’s Phantom Power, without giving electricity to the grid and your supplier.

It still requires some knowledge of electricity. If not (in Europe at least) bluetti markets a ready-to-use solution of the same type: 🔎 Explore How BLUETTI Balcony Solar System Works

Doing this takes you even further into the wonderful world of solar, storage and power grids ! (But still be careful of the risks)

So today I hit a new milestone. I hit 500w of output from the two, 200w solar panels! I understand that this is the max for the AC180. I am amazed to see the solar panels put out that much juice given their 200w rating. The snowpack is blasting light on the front and rear of the panels. I honestly think that given this performance, my current setup is probably adequate for my needs. I have a very small home, and live alone so my electric use is pretty small. But, the AC180 has been fully charging from zero to 100% within 4-5 hours. Given my very limited power consumption during the day, I could be storing up energy if I had additional storage. It kills me to think I could actually be storing energy, since the setup more than meets my daily usage. However, I have only spent about $1000 on my current setup. It is saving me at least 50% on my electric bill. This may be the sweet spot for me. When I have some extra money, I may look at expanding. But I am pretty happy with the price to performance ratio given my $1000 investment. If it saves me 50% off my electric bill, thats a monthly saving of $50. At that rate, the system pays for itself in two years.


when we charge AC180 with grid (silent mode) and with PV (about 250w) simultaneously, at the moment when there is no energy in the grid, does the inverter continue working without disconnection or does the UPS intervene for 20ms?
Is UPS offline or online?