Classic 150 Vmp?

[psyfy]

Hi,

Finally there is some time this weekend to start fiddling about with the new Classic LITE150 that arrived last week. Two questions before I start out though;

1.) What is the stable Vmp(min) for a 48vbat on the Classic 150?
2.) Is the Battery Sensor PTC or NTC & what is it's value?

I ask the last question as I've been through the packaging twice but cant seem to locate the Battery Sensor it was supposed to ship with. No problem though, I'm sure that I can dig something up out of the parts bin.


Thanks in advance.

Psyfy

[Halfcrazy]

The VMP should be say 10 ish volts above highest battery voltage on the warmest day. The classic will track lower but you start to run into issues if the 2 numbers are close or the same.

As for the BTS it is the same as the Outback one but I have no idea on the abbreviations you gave? The BTS should have been in the foam right below the Classic. If it was not in there I am happy to get you out one.

Ryan

[psyfy]

The VMP should be say 10 ish volts above highest battery voltage on the warmest day. The classic will track lower but you start to run into issues if the 2 numbers are close or the same.

As for the BTS it is the same as the Outback one but I have no idea on the abbreviations you gave? The BTS should have been in the foam right below the Classic. If it was not in there I am happy to get you out one.

Ryan

Thanks but it's really no problem.

PTC = Positive Temperature Coefficient
NTC = Negative Temperature Coefficient

I'll do some research tomorrow and post the results back here.


Thanks again.

[psyfy]

The VMP should be say 10 ish volts above highest battery voltage on the warmest day. The classic will track lower but you start to run into issues if the 2 numbers are close or the same.

I have a 65vdc/67A CCS to test the Classic CC with. Was hoping that the I/O differential was closer to parity and will test it and see anyway.

As for the BTS it is the same as the Outback one but I have no idea on the abbreviations you gave? The BTS should have been in the foam right below the Classic. If it was not in there I am happy to get you out one.

All good. A colleague and I put the 150 up on the bench and determined that the BTS is a 10k-NTC. Drove down the road and someone at a local solar shop gave me one gratis. It's a bright red coiled RJ8 to adhesive backed sensor plate, about 5mts in length. He had a few bagged in a tray but wan't sure what they came from.

Tell me though, where is the optimum place to mount the BTS?


Thanks in advance.

[boB]

I prefer to sandwich the sensor between two batteries.

Some companies mount theirs to the connection post because it's easy and stays put
but because of I ^2 R heating, it can give you false high temperature readings.

boB

[psyfy]

I prefer to sandwich the sensor between two batteries...

Agreed.