Stupid charge controller question

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Stupid charge controller question

Postby Chasein70 » Tue Mar 19, 2019 1:33 pm

If I put 24 volts into my charge controller instead of 12, does 12 come out the other end to the batteries?
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Re: Stupid charge controller question

Postby tony.latham » Tue Mar 19, 2019 2:14 pm

Chasein70 wrote:If I put 24 volts into my charge controller instead of 12, does 12 come out the other end to the batteries?


It depends on the controller. My Renogy has a max voltage of 27. It should be in your products specs.

T
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Re: Stupid charge controller question

Postby John61CT » Tue Mar 19, 2019 2:16 pm

Most units require reading the target bank at boot up, and that determines their output voltage automatically.

The V input range allowed, and optimal V range for efficiency varies.

MPPT allows higher
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Re: Stupid charge controller question

Postby featherliteCT1 » Tue Mar 19, 2019 5:28 pm

My Bogart SC2030 charge controller automatically reads and accepts so called “12 volt” vs. “24 volt” panels (maximum 30 amps); however, a switch must manually be set for 12 volt vs. 24 volt battery systems and another switch must manually be set for AGM vs. flooded batteries.
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Re: Stupid charge controller question

Postby Chasein70 » Thu Mar 21, 2019 2:28 am

Well, after much much searching I found the answer. My EPEVER 80 amp Mppt Solar Charge Controller can take 12v/24v/36v/48v and puts out the correct
voltage for a 12v battery bank.
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Re: Stupid charge controller question

Postby John61CT » Thu Mar 21, 2019 9:21 am

featherliteCT1 wrote:My Bogart SC2030 charge controller automatically reads and accepts so called “12 volt” vs. “24 volt” panels (maximum 30 amps); however, a switch must manually be set for 12 volt vs. 24 volt battery systems and another switch must manually be set for AGM vs. flooded batteries.
That being a PWM system, does it have the buck / boost conversion capability to allow 24V panels (Voc ~40) feeding a 12V bank, or 12V panels (Voc ~20) feeding a 24V bank?
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Re: Stupid charge controller question

Postby featherliteCT1 » Thu Mar 21, 2019 7:25 pm

John61CT wrote:
featherliteCT1 wrote:My Bogart SC2030 charge controller automatically reads and accepts so called “12 volt” vs. “24 volt” panels (maximum 30 amps); however, a switch must manually be set for 12 volt vs. 24 volt battery systems and another switch must manually be set for AGM vs. flooded batteries.
That being a PWM system, does it have the buck / boost conversion capability to allow 24V panels (Voc ~40) feeding a 12V bank, or 12V panels (Voc ~20) feeding a 24V bank?


I do not know ... you would have to read the literature on the Bogart web pages to find out
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