Solar Panel hookup on EB240

Hello, I bought 4 of the panels below planning to hook them up to my EB240 but after looking at the specs (and learning a little) I dont think they will work. Can someone advise if theres a way to use all four of these together with the EB240?

Thank you!!!

bvsouthc said:

Hello, I bought 4 of the panels below planning to hook them up to my EB240 but after looking at the specs (and learning a little) I dont think they will work. Can someone advise if theres a way to use all four of these together with the EB240?

Thank you!!!

HQST 100 Watts 12 Volts Monocrystalline Solar Panel
Maximum Power: 100W	Open Circuit Voltage：21.3V
Short Circuit Current：5.83A	Opitmum Operating Voltage：18.0V
Optimum Operating Current：5.58A	Max System Voltage: 600VDC (UL)
Dimensions: 35.6x25.9x1.18 in.	Weight: 14.3 lbs

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2 in series at 42.6 Voc
2 in series at 42.6 Voc
Then parallel connect those 2 strings for 42.6 Voc at about 11 amps.

2 Series 2 Parallel
Why did you think they would not work?

I thought it was a 10amp max?

bvsouthc said:

I thought it was a 10amp max?

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Nah. 10 amps can be exceeded with no worries.
You could over panel an EB240 with 1000 watts panels with no harm and I have seen it done.
The ~ 68 Volts open circuit is a max that if exceeded will get an error code and shut down.
You will never get more than 10 amps charging but 400 watt of panels will only produce about 320 watts under good conditions.

Ok. That being said can you suggest an array where I can squeeze the max PV input?

I also got the AC200 on the Indiegogo special and plan on getting (4) 200 watt panels in series for it...

bvsouthc said:

Ok. That being said can you suggest an array where I can squeeze the max PV input?

I also got the AC200 on the Indiegogo special and plan on getting (4) 200 watt panels in series for it...

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PV input on an EB240 or AC200?
I thought you already bought 4 100 watt panels.

Yeah I bought a $999 AC200 too.
I dont have 200 watt panel specs Voc and amps etc memorized so i dunno. Lol
200 watt panels are not very portable.

PV input for the EB240. I did buy (4) 100 watt panels but am not opposed to changing things up if I can get more input.

I think I'm good with the 200watt panels I'm getting for the AC200. Just going to run them in series for 72volt total. All will be mounted on my cabin roof so portability is not an issue...

bvsouthc said:

I thought it was a 10amp max?

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Yeah Bluetti is confusing a lot of new to solar by saying Max 10 amps on the EB240 and 12 amps Max on the AC200
The ~ 68 Voc and 150 Voc is a Max input but they somehow combine the two as both being Max inputs.
Along with totally misrepresenting 2500 cycles at a usually not mentioned 50% capacity with that 2500 spec.
Bluetti reps were claiming the batteries were LFP initially until they corrected themselves.
They are not a very trustworthy source of info.

So whats your suggestion for the best panel array on the EB240? To get the most input possible?

bvsouthc said:

So whats your suggestion for the best panel array on the EB240? To get the most input possible?

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See Forbisher's comment #2.

With a 2s2P array, your input voltage to the EB240 charge controller will not come anywhere near the 68V maxiumum, but you will still get the same Wattage coming out of the four panels as you would if they were in series.

You could also aim one series pair about 5 to 10 degrees east of south and aim the other series pair about 5 to 10 degrees west of south, while inclining all four panels by the same amount. This will give you a bit more Wh of charging, throughout the day, than if they were all aimed directly south. (You shouldn't do this with series arrays, even if using only three, in your case, to avoid excess Voc, because you want to ensure that every cell in every panel of a series set, receives the same amount of light.)