Solar panels for Bluetti AC300

[Good Karma]

Hello all,

Getting an AC300 with two batteries and wanting to max out the 2400 watts solar input. It has two MPPT controllers 12-150 volt up to 12 amps, 1200 watts. What would be my best solar option for rigid panels? Thinking about six 200 watt Rich panels in series to each MPPT controller. Panels are 24.3 volts -10.2 amps, so each controller would receive 145.8 volts @ 10.2 amps, 1200 watts.

 

[rmaddy]

6 x 24.3V = 145.8V. That's too close to the max input voltage of 150V unless your panels will never see a temperature below 25ºC (77ºF). Voc increases as the temperature decreases. So you can safely only use 5 of those panels in series with those SCCs.

 

[Good Karma]

6 x 24.3V = 145.8V. That's too close to the max input voltage of 150V unless your panels will never see a temperature below 25ºC (77ºF). Voc increases as the temperature decreases. So you can safely only use 5 of those panels in series

Thank you rmaddy !!!

 

[DaGoose13]

So, I've been looking at several different panels and worked out the below.

These are 3 types of Solarever panels. The 400 seems to be the best, but I can't find them in stock anywhere.

Then it depends if you are in a colder climate or a warmer climate. Warmer the 440 wins out. Colder the 360 probably wins out.

​

​

360W​

400W Sol​

440W​

​

360​

400​

440​

C T​

F T​

VOC​

Pmax​

Isc​

VOC​

Pmax​

Isc​

VOC​

Pmax​

Isc​

​

​

​

​

-25​

-13​

47.2​

423.0​

10.9​

42.5​

470.0​

13.3​

56.0​

517.0​

11.1​

​

1,269​

1,410​

1,034​

-20​

-4​

46.6​

416.7​

10.9​

42.0​

463.0​

13.3​

55.3​

509.3​

11.1​

​

1,250​

1,389​

1,019​

-15​

5​

46.0​

410.4​

10.9​

41.4​

456.0​

13.3​

54.6​

501.6​

11.1​

​

1,231​

1,368​

1,003​

-10​

14​

45.4​

404.1​

11.0​

40.9​

449.0​

13.4​

53.9​

493.9​

11.2​

​

1,212​

1,347​

988​

-5​

23​

44.8​

397.8​

11.0​

40.3​

442.0​

13.4​

53.2​

486.2​

11.2​

​

1,193​

1,326​

972​

0​

32​

44.2​

391.5​

11.0​

39.8​

435.0​

13.4​

52.5​

478.5​

11.2​

​

1,175​

1,305​

957​

5​

41​

43.6​

385.2​

11.1​

39.3​

428.0​

13.5​

51.8​

470.8​

11.2​

​

1,156​

1,284​

942​

10​

50​

43.0​

378.9​

11.1​

38.7​

421.0​

13.5​

51.0​

463.1​

11.3​

​

1,137​

1,263​

926​

15​

59​

42.4​

372.6​

11.1​

38.2​

414.0​

13.5​

50.3​

455.4​

11.3​

​

1,118​

1,242​

911​

20​

68​

41.8​

366.3​

11.1​

37.7​

407.0​

13.6​

49.6​

447.7​

11.3​

​

1,099​

1,221​

1,343​

25​

77​

41.2​

360.0​

11.2​

37.1​

400.0​

13.6​

48.9​

440.0​

11.4​

​

1,080​

1,600​

1,320​

30​

86​

40.6​

353.7​

11.2​

36.6​

393.0​

13.6​

48.2​

432.3​

11.4​

​

1,061​

1,572​

1,297​

35​

95​

40.0​

347.4​

11.2​

36.0​

386.0​

13.7​

47.5​

424.6​

11.4​

​

1,042​

1,544​

1,274​

40​

104​

39.4​

341.1​

11.2​

35.5​

379.0​

13.7​

46.8​

416.9​

11.4​

​

1,023​

1,516​

1,251​

 

[Good Karma]

So, I've been looking at several different panels and worked out the below.

These are 3 types of Solarever panels. The 400 seems to be the best, but I can't find them in stock anywhere.

Then it depends if you are in a colder climate or a warmer climate. Warmer the 440 wins out. Colder the 360 probably wins out.

​

​

360W​

400W Sol​

440W​

​

360​

400​

440​

C T​

F T​

VOC​

Pmax​

Isc​

VOC​

Pmax​

Isc​

VOC​

Pmax​

Isc​

​

​

​

​

-25​

-13​

47.2​

423.0​

10.9​

42.5​

470.0​

13.3​

56.0​

517.0​

11.1​

​

1,269​

1,410​

1,034​

-20​

-4​

46.6​

416.7​

10.9​

42.0​

463.0​

13.3​

55.3​

509.3​

11.1​

​

1,250​

1,389​

1,019​

-15​

5​

46.0​

410.4​

10.9​

41.4​

456.0​

13.3​

54.6​

501.6​

11.1​

​

1,231​

1,368​

1,003​

-10​

14​

45.4​

404.1​

11.0​

40.9​

449.0​

13.4​

53.9​

493.9​

11.2​

​

1,212​

1,347​

988​

-5​

23​

44.8​

397.8​

11.0​

40.3​

442.0​

13.4​

53.2​

486.2​

11.2​

​

1,193​

1,326​

972​

0​

32​

44.2​

391.5​

11.0​

39.8​

435.0​

13.4​

52.5​

478.5​

11.2​

​

1,175​

1,305​

957​

5​

41​

43.6​

385.2​

11.1​

39.3​

428.0​

13.5​

51.8​

470.8​

11.2​

​

1,156​

1,284​

942​

10​

50​

43.0​

378.9​

11.1​

38.7​

421.0​

13.5​

51.0​

463.1​

11.3​

​

1,137​

1,263​

926​

15​

59​

42.4​

372.6​

11.1​

38.2​

414.0​

13.5​

50.3​

455.4​

11.3​

​

1,118​

1,242​

911​

20​

68​

41.8​

366.3​

11.1​

37.7​

407.0​

13.6​

49.6​

447.7​

11.3​

​

1,099​

1,221​

1,343​

25​

77​

41.2​

360.0​

11.2​

37.1​

400.0​

13.6​

48.9​

440.0​

11.4​

​

1,080​

1,600​

1,320​

30​

86​

40.6​

353.7​

11.2​

36.6​

393.0​

13.6​

48.2​

432.3​

11.4​

​

1,061​

1,572​

1,297​

35​

95​

40.0​

347.4​

11.2​

36.0​

386.0​

13.7​

47.5​

424.6​

11.4​

​

1,042​

1,544​

1,274​

40​

104​

39.4​

341.1​

11.2​

35.5​

379.0​

13.7​

46.8​

416.9​

11.4​

​

1,023​

1,516​

1,251​

Thanks for making the chart, i didn't realize how much temperature affected the panels. Those Solarever 400w half-cut cell panels do look like a good choice when they become available.

 

[DaGoose13]

Yeah, the amperage might be a bit high for the AC300, but the AC200MAX changed to 15A, so I'm hoping the AC300 will too.

 

[Kris]

What about 4 of these panels? https://store.santansolar.com/product/new-ja-solar-530w-half-cell-mono-solar-panel/
The AC300 has 2 solar inputs, open circuit voltage is 49.65 V x2 = 99.3 V. The maximum power current is 12.67 A, would that not work since the input states up to 12A?

 

[DaGoose13]

What about 4 of these panels? https://store.santansolar.com/product/new-ja-solar-530w-half-cell-mono-solar-panel/
The AC300 has 2 solar inputs, open circuit voltage is 49.65 V x2 = 99.3 V. The maximum power current is 12.67 A, would that not work since the input states up to 12A?

So, they may work under NOCT conditions, but won't work under STC conditions (amps will be too high though I don't know if that will cause issues).
If you were using the D300S with the AC300, then it should work without issues as it's amp limit is 15A and the voltage upper limit is much higher (500v).

 

[DaGoose13]

What about 4 of these panels? https://store.santansolar.com/product/new-ja-solar-530w-half-cell-mono-solar-panel/
The AC300 has 2 solar inputs, open circuit voltage is 49.65 V x2 = 99.3 V. The maximum power current is 12.67 A, would that not work since the input states up to 12A?

I actually bought some of these panels and they were working with an AC200P. Not sure what amperage/voltage it was, but each panel was producing around 375w at a flat angle to the ground (was just playing with them).

 

[LordEpic]

Hi all... I'm brand new (this is my first post here and I'm a total noob) and I'm resurrecting this thread as it is talking about exactly what I'm looking for. I'm trying to find the fewest number of panels to feed 1200W into my AC300. I don't want to run afoul of whatever input voltage and amperage caps there are. I also can't find any of the Solarever 440's in stock anywhere, which I think would work great in my southern Georgia location. The 530w panels referenced above are also unavailable. Are there any other panels that will work?

 

[DaGoose13]

Here are some 445w Solarever panels that should be close. https://store.santansolar.com/product/new-solarever-445w-144-half-cell-mono-solar-panel/

Here are some 370w Solarever panels also. https://signaturesolar.com/solarever-370w-half-cell-mono-perc-solar-panel-black-pallet-31/

 

[LordEpic]

Here are some 445w Solarever panels that should be close. https://store.santansolar.com/product/new-solarever-445w-144-half-cell-mono-solar-panel/

Here are some 370w Solarever panels also. https://signaturesolar.com/solarever-370w-half-cell-mono-perc-solar-panel-black-pallet-31/

Thanks! The second link makes you buy panels by the pallet, sadly.
I still don't fully understand the amperage thing but I'm sure there is a video out there somewhere that explains it.

 

[DaGoose13]

Solarever 370W Half-Cell Mono PERC Solar Panel (Black)

Signature Solar provides solar components and full kits for off-grid, grid-tie and custom diy solar systems. Providing Solar 101 and hands on experience within the solar industry. Quality inverters, bifacial solar panels, complete solar kits, solar batteries. Holding best in class brands such as...

signaturesolar.com

 

[DaGoose13]

Amperage is the inverse of voltage. It goes up with Temp while voltage goes down.

 

[LordEpic]

Solarever 370W Half-Cell Mono PERC Solar Panel (Black)

Signature Solar provides solar components and full kits for off-grid, grid-tie and custom diy solar systems. Providing Solar 101 and hands on experience within the solar industry. Quality inverters, bifacial solar panels, complete solar kits, solar batteries. Holding best in class brands such as...

signaturesolar.com

Thanks! I went ahead and bought this 10-pack. I figure I'll be expanding in the future at some time anyway. For now, it looks like I can run three into each controller: 3 x 370w = 1,110W, which is below the 1200W threshold. And also below the 150v limit fairly comfortably.

 

[Cyanlite]

Thanks! I went ahead and bought this 10-pack. I figure I'll be expanding in the future at some time anyway. For now, it looks like I can run three into each controller: 3 x 370w = 1,110W, which is below the 1200W threshold. And also below the 150v limit fairly comfortably.

With the AC300, you could do 3s2p+1.

3x370w in each string, and one string per input, which should give you a max of 2.22kW. You can then get the DC Charging enhancer and stick one panel on it for a total of 7 panels, 2.59kW.

And each of the B300 batteries have a 500W MPPT controller in them.

 

[DaGoose13]

With the AC300, you could do 3s2p+1.

3x370w in each string, and one string per input, which should give you a max of 2.22kW. You can then get the DC Charging enhancer and stick one panel on it for a total of 7 panels, 2.59kW.

And each of the B300 batteries have a 500W MPPT controller in them.

The 370w panels have too many amps to use the DC charging enhancer (60v/10amp max).

 

[Cyanlite]

The 370w panels have too many amps to use the DC charging enhancer (60v/10amp max).

You would only have one panel on that DC charging enhancer. That panel you linked has a VOC of 41V, which is well under the 60V limit. The DC charging enhancer will only "draw" as much amperage as it needs, and won't exceed the 10a max.

 

[Thisistheonlyusernameever]

I have the same desire as OP but in a mobile config for my RV. I've outlayed my options on a graphic of the roof of my RV and would be really grateful for any advice. Interested in maxing out an AC300 if possible. The green panels are 200W and look like they may afford me an extra 100W if I'm not missing something. Blue are the 100W panels.

With all 100W panels, you can see I can fit 23 but I can't go over 5S. If I went 6S on either chain, I would have to unplug it below 60 deg f.

So I would be able to plug one 5S2P chain into one MPPT on the AC300 and another to the other MPPT (each coming in at 121.5V) and likely around 1600watts best condition (they will be mounted flat of course)

That's not very close to the 2400W max so That leaves me with what to do with the other 3 panels. I suppose I can plug those directly into the batterys as they have their own MPPT or maybe I can use the charging enhance in some way? Also, as you can see, theres a way to put two 200W panels in place of the 3 100W instead. So maybe those would be well suited to plug directly into the battery.

I would like to be able to run my AC and as such, worry about finding out how to really maximize this array with the roof area I have.

Incidentally; I also don't mind adding, and actually plan to buy, a ground portable panel. Mostly for use when I take my truck to more remote locations than the RV can reach.

Also, just making sure, as I understand it; I dont have to worry about the 12 amp "limit" at all?

Any help would be GREATLY appreciated as I feel like I might be missing something. Maybe there's some kind of 3P layout that I'm missing.


Here are the links to the panels. The specs are also under the layout picture.

https://www.amazon.com/gp/product/B0914PLF9V/ref=ox_sc_act_title_2?smid=A2D22KZJD14Y8Y&th=1

https://www.amazon.com/gp/product/B08CRJYJ22/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&th=1

 

[Cyanlite]

View attachment 102104


I have the same desire as OP but in a mobile config for my RV. I've outlayed my options as I see them and would be really grateful for any advice. Interested in maxing out an AC300 if possible. The green panels are 200W and look like they may afford me an extra 100W if I'm not missing something.

With all 100W panels, you can see I can fit 23 but I can't go over 5S. If I went 6S on either chain, I would have to unplug it below 60 deg f.

So I would be able to plug one 5S2P chain into one MPPT on the AC300 and another to the other MPPT (each coming in at 121.5V) and likely around 1600watts best condition (they will be mounted flat of course)

That's not very close to the 2400W max so That leaves me with what to do with the other 3 panels. I suppose I can plug those directly into the batterys as they have their own MPPT or maybe I can use the charging enhance in some way? Also, as you can see, theres a way to put two 200W panels in place of the 3 100W instead. So maybe those would be well suited to plug directly into the battery.

I would like to be able to run my AC and as such, worry about finding out how to really maximize this array with the roof area I have.

Incidentally; I also don't mind adding, and actually plan to buy, a ground portable panel. Mostly for use when I take my truck to more remote locations than the RV can reach.

Also, just making sure, as I understand it; I dont have to worry about the 12 amp "limit" at all?

Any help would be GREATY appreciated as I feel like I might be missing something. Maybe there's some kind of 3P layout that I'm missing.

I need the specs on the panels. But on the amperage limit you are correct. The system will only draw up to it's max amperage limit.