Voltage meter

[mfinnegan]

Originally Posted by Flattop 59

I have my 100% set at 51 volts and my 0% at 24 volts.

Why would you want the zero% to be so low? You should set it to the 50% SoC of 48.4V for a 48V pack....

[Timinator]

Originally Posted by yawood

Victron BMV712 by far.

So, I ordered one, the 712. I'll probably have some setup questions once I get it installed. Thanks again for helping with the decision.

[yawood]

Originally Posted by Timinator

So, I ordered one, the 712. I'll probably have some setup questions once I get it installed. Thanks again for helping with the decision.

I'm sure you won't be sorry. You sound like the sort of person who wants to keep an eye on more than just the basic pack voltage.

[Timinator]

Originally Posted by yawood

I'm sure you won't be sorry. You sound like the sort of person who wants to keep an eye on more than just the basic pack voltage.

What's pack voltage mean? Just kidding. It's going in a HuntVe 4x4 cart with 8 T145's and two 600amp controllers. So, lot's going on I liked to keep any eye on. I'll be in touch!

[yawood]

Interesting looking cart. You'll be able to check your batteries out on your phone while you're sitting in your hide

[Timinator]

Originally Posted by yawood

Interesting looking cart. You'll be able to check your batteries out on your phone while you're sitting in your hide

So I installed the Vitron gauge and setup today. I'm charging the battery pack now, it's up to a charging voltage of 62.49 volts. That seems pretty darn high! Any settings I should know about?

[yawood]

Originally Posted by Timinator

So I installed the Vitron gauge and setup today. I'm charging the battery pack now, it's up to a charging voltage of 62.49 volts. That seems pretty darn high! Any settings I should know about?

That is not too high, though it wouldn't want to go much higher. Check it with your multimeter and you'll probably find it is accurate.

As for the settings, the defaults are pretty right except for the Peukert exponent. That depends on what batteries you have. The default is 1.25 but Sergio has calculated 1.13 for Trojans and I have calculated 1.22 for my US Battery ones.
See https://www.buggiesgonewild.com/showthread.php?t=149824 for more detail.

If you are using the mid-point for your secondary connection (which I recommend that you do) then you may need to change that setting.

Here are my settings (I notice that I have my Temperature setting on but that's not necessary as I am using the mid-point not temperature).

[Timinator]

Originally Posted by yawood

That is not too high, though it wouldn't want to go much higher. Check it with your multimeter and you'll probably find it is accurate.

As for the settings, the defaults are pretty right except for the Peukert exponent. That depends on what batteries you have. The default is 1.25 but Sergio has calculated 1.13 for Trojans and I have calculated 1.22 for my US Battery ones.
See https://www.buggiesgonewild.com/showthread.php?t=149824 for more detail.

If you are using the mid-point for your secondary connection (which I recommend that you do) then you may need to change that setting.

Here are my settings (I notice that I have my Temperature setting on but that's not necessary as I am using the mid-point not temperature).

Good stuff! Thanks for the info. The charger for this HuntVe cart, as well as the cart, it new to me, it turns out it's a much better charger than the standard original chargers for the Club Cars. It does a equalization at the end, that's what I was seeing with the 62V's. It turned off right after that. I'll check and go over my settings. I've been watching a few YouTube videos which have helped also. Thanks again for the suggestion of the gauge.

[_ogre]

Originally Posted by Timinator

How about the best meter for a 2" round hole?

how about a 2.5" square plastic plate with scottyb's digital volt meter stuck in there?

[Timinator]

Originally Posted by yawood

That is not too high, though it wouldn't want to go much higher. Check it with your multimeter and you'll probably find it is accurate.

As for the settings, the defaults are pretty right except for the Peukert exponent. That depends on what batteries you have. The default is 1.25 but Sergio has calculated 1.13 for Trojans and I have calculated 1.22 for my US Battery ones.
See https://www.buggiesgonewild.com/showthread.php?t=149824 for more detail.

If you are using the mid-point for your secondary connection (which I recommend that you do) then you may need to change that setting.

Here are my settings (I notice that I have my Temperature setting on but that's not necessary as I am using the mid-point not temperature).

So, I haven't hooked up either the mid-pack voltage or the pack temperature thermistor yet. I'm leaning towards the temperature sensor because of the freezing temps up here in Ohio during the winter. Then maybe switching to the mid-pack voltage during the rest of the year? I can take an occasional mid-pack voltage reading during winter to make sure all is well on battery row. Does that sound like sound thinking or am I missing something?