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What I don't quite understand as I am not an electrician is that if one regulator can lets say for argument sake send 5 Amp to the battery while it is charging, why does 2 regulators not send 5 Amp each making 10 Amp in total to the battery and making it over charge until the cut off point when the battery is fully charged.?
I expect that the regulators must sense the total amount going into the battery.
I understand that one regulator is much simpler.
______________________________________________________________ Tramping the Dream
Grath
Hi Grath.
As i said in my post when using 2 regulators you have to make sure they are compatible.
We had a Steca mppt controlling x2 80w panels and a morningstar controlling a 120w. The batteries were getting to 15.4 regulary. Stephen Gilmour from Aire and sun investigated and contacted Steca who said that the morningstar one was trying to destroy the Steca and must be changed. When changed to another steca they worked perfect together.
What I don't quite understand as I am not an electrician is that if one regulator can lets say for argument sake send 5 Amp to the battery while it is charging, why does 2 regulators not send 5 Amp each making 10 Amp in total to the battery and making it over charge until the cut off point when the battery is fully charged.?
I expect that the regulators must sense the total amount going into the battery.
I understand that one regulator is much simpler.
The regulators do not produce the current, the solar panels do. The current rating of a regulator is how much it can carry not how much it makes (regulators dont make power the panels do)
What I don't quite understand as I am not an electrician is that if one regulator can lets say for argument sake send 5 Amp to the battery while it is charging, why does 2 regulators not send 5 Amp each making 10 Amp in total to the battery and making it over charge until the cut off point when the battery is fully charged.?
I expect that the regulators must sense the total amount going into the battery.
I understand that one regulator is much simpler.
The regulators do not produce the current, the solar panels do. The current rating of a regulator is how much it can carry not how much it makes (regulators dont make power the panels do)
I know that, but I thought that if each panel was pushing in say 5 amps each through 2 regulators it would be 10 amp going to the battery then that would be too much as appose to one regulator limiting only 5 amp through to the battery.
Or another way is each panel pushing in say 20 volt reduced by the regulator to say 14 volts, times by 2 panels going through 2 regulators would be 28 volts going in, or if only one regulator it would still be 14 volts.
I know you say I am wrong, but I just don't quite understand why?
______________________________________________________________ Tramping the Dream
Grath
The current that a regulator delivers is calculated by the voltage detected across the battery. If the battery was low say 11 volts then 2 regulators or 1 regulator would deliver the maximum they could harvest from the panels until the battery was satisfied. 2 regulators would do exactly the same but they would be delivering half as much AS you would have 1 solar connected to EACH rather than 2 solars connected to 1
If you have 2 80 watt panels connected through 1 regulator in ideal conditions expect about 9 amps.
If you have 2 80 watts panels connected through(1 each) 2 regulators expect 4.5 amps from each so 9 amps
Simples
The current that a regulator delivers is calculated by the voltage detected across the battery. If the battery was low say 11 volts then 2 regulators or 1 regulator would deliver the maximum they could harvest from the panels until the battery was satisfied. 2 regulators would do exactly the same but they would be delivering half as much AS you would have 1 solar connected to EACH rather than 2 solars connected to 1
Thanks, Get it now!
______________________________________________________________ Tramping the Dream
Grath
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