A Forum run by Enthusiasts of MidNite Solar

Charge Controllers and Clippers => The "KID" charge controller => Topic started by: New KID On The Block on November 05, 2014, 10:31:02 PM

Title: What is the voltage out of the LOAD terminal?
Post by: New KID On The Block on November 05, 2014, 10:31:02 PM
my output to the battery bank is nominal 24v. My open input is 6 x 22.5v.
I'm confused as to what voltage is the output to LOAD terminal? Is the output configurable?

thanks!
Title: Re: What is the voltage out of the LOAD terminal?
Post by: Westbranch on November 06, 2014, 12:06:26 AM
Well I did not find a definitively stated voltage, but , it depends on the battery voltage , see the bottom of page 15 in the manual, there is a  max of 400 Watts... so  if a 12v system then you will see 33.333 A max,  at 24v and 400 W, 16.66A.. from what I read the max V will be whatever the CC is sending to the battery.  there is no mention of configurabillity that I saw....

hth
Title: Re: What is the voltage out of the LOAD terminal?
Post by: New KID On The Block on November 06, 2014, 12:28:47 AM
Quote from: Westbranch on November 06, 2014, 12:06:26 AM
Well I did not find a definitively stated voltage, but , it depends on the battery voltage , see the bottom of page 15 in the manual, there is a  max of 400 Watts... so  if a 12v system then you will see 33.333 A max,  at 24v and 400 W, 16.66A.. from what I read the max V will be whatever the CC is sending to the battery. there is no mention of configurabillity that I saw....

hth

thanks Westbranch for your input. So it sounds like it's going to be around 24v for my system as I'm hooked up to a 24v battery bank.

The reason I ask is because I was contemplating adding a small DC computer fan, connected to the LOAD terminal, on top of the heat sink of the KID. But I need to figure out at what voltage the load terminal outputs to be able to decide what fan to purchase.
Title: Re: What is the voltage out of the LOAD terminal?
Post by: Highflyer on November 07, 2014, 12:47:45 PM
The load is limited to 30 amps regardless of the voltage.  I am seeing +20 amps to my load running at 24 volts (27.3) using the "Float on" mode.

I'll check my load to see what voltage I see when it is powered.


Title: Re: What is the voltage out of the LOAD terminal?
Post by: Vic on November 07, 2014, 04:06:52 PM
The Load terminals are at the battery voltage,  with a small voltage drop in the FET  switches -- the smaller the current drawn from these terminals,  the less drop in the FETs,  and therefore the closer to battery V is the voltage.

In My Opinion.    FWIW,    Vic
Title: Re: What is the voltage out of the LOAD terminal?
Post by: New KID On The Block on November 10, 2014, 08:23:06 PM
Quote from: Vic on November 07, 2014, 04:06:52 PM
The Load terminals are at the battery voltage,  with a small voltage drop in the FET  switches -- the smaller the current drawn from these terminals,  the less drop in the FETs,  and therefore the closer to battery V is the voltage.

In My Opinion.    FWIW,    Vic

Yes, that's the info I was looking for. Basically I needed to know if I can run a 12v DV fan from the LOAD given that I have a 24v battery bank connected to the KID. I suppose it'll still work but the fan will probably be running extremely fast and making too much noise.
Title: Re: What is the voltage out of the LOAD terminal?
Post by: Doug on November 11, 2014, 10:46:53 AM

[/quote]

I suppose it'll still work but the fan will probably be running extremely fast and making too much noise.
[/quote]

Yeah, but not for all that long. Then it'll go quiet.
Title: Re: What is the voltage out of the LOAD terminal?
Post by: Highflyer on November 11, 2014, 02:12:30 PM
I agree with Vic,

I checked my load voltage and it is 26.9 while the batteries are 27.4 in float.  I get the same 26.9 wether I am using float on or PWM divert.
Title: Re: What is the voltage out of the LOAD terminal?
Post by: New KID On The Block on November 11, 2014, 02:37:05 PM
Quote from: Highflyer on November 11, 2014, 02:12:30 PM
I agree with Vic,

I checked my load voltage and it is 26.9 while the batteries are 27.4 in float.  I get the same 26.9 wether I am using float on or PWM divert.

Highflyer, thanks for checking.