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Post by Al1111111 on Sept 29, 2017 13:31:13 GMT -8
I have 3 150watt Mono panels with a 12V battery.
I want to up my Inverter to 4000 watts which kind of implies a 24V battery.
Can I send the 3 150 watt panels power into the Commander-40 and expect it to handle the conversion to the 24V battery?
(mounting a 4th panel would be a pain...)
I could not find a thread on this. If there is one, just point me to it.
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Post by rabird on Sept 29, 2017 16:58:30 GMT -8
yes, with the three panels in series and a 24v battery bank.
what on earth needs 4000 watt inverter (300A @ 12v) and why so small of panels(20A @ 12v)?
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Post by tattoo on Sept 30, 2017 6:03:45 GMT -8
Bird I was wondering the same thing..... A 4000w inverter?  Hell just the inverter itself will use half of the usable power in the battery over night by it's self..... |
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Post by Al1111111 on Sept 30, 2017 11:46:19 GMT -8
This is a weekend house.
There are 3 : 1/2 HP pumps in addition to all the rest of the appliances.
(The panels charge the batteries during the week.)
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Post by tattoo on Sept 30, 2017 13:00:39 GMT -8
This is a weekend house. There are 3 : 1/2 HP pumps in addition to all the rest of the appliances. (The panels charge the batteries during the week.) All that off of one 12v battery? I must have bought the wrong battery............. Hell I've got 6 6v batteries 5 100w panels and I can't run all that........... |
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Post by Al1111111 on Oct 3, 2017 5:03:18 GMT -8
Please do not fret about my battery.
You are already thinking that a battery comes in 6V or 12V when actually those are made up of multiple batteries.
My battery is actually a "bank" of batteries that can sustain several hundred amps for significant time.
I will have enough battery for the entire weekend without the solar panels.
I just want recovery in the next week.
Al
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Post by tattoo on Oct 3, 2017 8:21:33 GMT -8
Please do not fret about my battery. You are already thinking that a battery comes in 6V or 12V when actually those are made up of multiple batteries. Al Fret about a battery? ? I could care less..... And I know plenty about batteries..... My question was to your first post Sept 29, 2017 17:31:13 GMT -4 Al1111111 said: I have 3 150watt Mono panels with a 12V battery. To me a Battery is just that a battery... You know ONE battery not batteries......... |
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Post by tattoo on Oct 3, 2017 8:23:45 GMT -8
I will have enough battery for the entire weekend without the solar panels. Al With a 4000w inverter.... I really doubt it............ |
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Post by rabird on Oct 3, 2017 8:34:38 GMT -8
Nominal System Voltage: 12V/24V Auto recognition
^^^ specs of the controller, when the battery is connected to the controller the controller determines what voltage system you have. Then the panels are connected, I do not believe the controller can increase panel voltage but it certainly can take the ~60v from from 3 '12v' panels in series down to battery voltage, that what mppts do.
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Post by Al1111111 on Oct 3, 2017 10:35:32 GMT -8
My question is answered. Thanks.
I did change from parallel to serial connection and everything is working.
Why do you doubt that there is a 4000 watt inverter?
There are several companies that claim to sell them. (The reviews of some indicate that they are questionable, but others are seem to have good rating, the difference seems to be correlated to weight/price.)
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Post by tattoo on Oct 3, 2017 14:05:53 GMT -8
Why do you doubt that there is a 4000 watt inverter? I never said you didn't have are couldn't get a 4000w inverter..... Read my post again...... I said I doubt you can run off just your BATTERY only all weekend without your panels charging with a 4000w inverter............. That's what I doubt........ Your battery will be dead as hell in two days........ If you run the power like you say you do needing a 4000w inverter...... That's a pipe dream.......... |
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Hell just the inverter itself will use half of the usable power in the battery over night by it's self.....