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Old 05-18-2015, 10:00 AM   #11
bulls74
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Default Re: help with digital voltmeter install

charged pack until charger shut off last night and then let pack rest. so i took cart off charger around 8pm last night. checked this morning and pack was at 37.8 after sitting overnight. plugged it in again while at work today, will unplug once i get home, let pack rest and then see what numbers are then.

should i be seeing a higher number than 37.8?

also, many thanks for the SoC chart!
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Old 05-18-2015, 10:03 AM   #12
kernal
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Default Re: help with digital voltmeter install

Quote:
Originally Posted by DaveTM View Post
I just installed one of these "ScottyB" meter's on my 48-V system's. I got the real fancy one 'cause I have a separate 12-V aux battery for my winch and lights. (I can't convince my wife I need the aux wench option) The table that comes with the meter has the same info on it....but it's TO BIG to laminate and tape on my cart roof.

So...I just now copied JohnnyB's to my HD and will print it.....laminate it...and tape it to my cart roof so I can view it at an instant. Of course.....if I'm at the top of a mountain....4 miles up.....I should still be good....as it's all down hill from there!!!

Dave
I lifted this from someone else long time ago. Pick your voltage/color, cut it out and tape to whatever. Another option.
Attached Files
File Type: pdf SOC table tee holder in color.pdf (50.3 KB, 0 views)
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Old 05-18-2015, 10:45 AM   #13
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Default Re: help with digital voltmeter install

Quote:
Originally Posted by bulls74 View Post
charged pack until charger shut off last night and then let pack rest. so i took cart off charger around 8pm last night. checked this morning and pack was at 37.8 after sitting overnight. plugged it in again while at work today, will unplug once i get home, let pack rest and then see what numbers are then.

should i be seeing a higher number than 37.8?

also, many thanks for the SoC chart!
You should be seeing at least 38.2V about 12 hours after the charger shuts off.
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Old 05-18-2015, 02:06 PM   #14
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Default Re: help with digital voltmeter install

Hey bulls,

Nice clean battery pack! No corrosion, no dirt, no spotting! Looks really good.

I can't really tell from your picture but I think you may have connections stacked wrong on the NEG post and maybe the others too.

In order to get the least resistance and least heat in a connection
you want to have the highest amp connector on the bottom.
That way it gets the best metal to metal contact with the largest area.

Again I can't tell for sure from the pic but you might check it out.
Also, don't tighten your battery bolts too tight or they can strip out of the lead.

Cart on...

Last edited by remac; 05-18-2015 at 02:06 PM.. Reason: can't spell
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Old 05-18-2015, 02:10 PM   #15
bulls74
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Default Re: help with digital voltmeter install

Quote:
Originally Posted by kernal View Post
I lifted this from someone else long time ago. Pick your voltage/color, cut it out and tape to whatever. Another option.
nice! i'll definitely be printing this out and putting it up.
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Old 05-18-2015, 02:15 PM   #16
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Default Re: help with digital voltmeter install

Quote:
Originally Posted by DaveTM View Post
I just installed one of these "ScottyB" meter's on my 48-V system's. I got the real fancy one 'cause I have a separate 12-V aux battery for my winch and lights. (I can't convince my wife I need the aux wench option) The table that comes with the meter has the same info on it....but it's TO BIG to laminate and tape on my cart roof.

So...I just now copied JohnnyB's to my HD and will print it.....laminate it...and tape it to my cart roof so I can view it at an instant. Of course.....if I'm at the top of a mountain....4 miles up.....I should still be good....as it's all down hill from there!!!

Dave
i know what you mean Dave..it took a week of what i felt like were senate style hearings to convince my better half of the NECESSITY of getting the bandit motor. the next bill i'm trying to push through are 2g wires. one small bill at at time
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Old 05-18-2015, 02:22 PM   #17
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Default Re: help with digital voltmeter install

Quote:
Originally Posted by remac View Post
Hey bulls,

Nice clean battery pack! No corrosion, no dirt, no spotting! Looks really good.

I can't really tell from your picture but I think you may have connections stacked wrong on the NEG post and maybe the others too.

In order to get the least resistance and least heat in a connection
you want to have the highest amp connector on the bottom.
That way it gets the best metal to metal contact with the largest area.

Again I can't tell for sure from the pic but you might check it out.
Also, don't tighten your battery bolts too tight or they can strip out of the lead.

Cart on...
hey remac, thanks for noticing it and more importantly for letting me know! you are 100% correct about how they're stacked. i may sound like a fool for admitting this but i didn't know that the connector for the highest amp draw was suppose to be on the bottom. again, many thanks for jumping in and helping me out. so should the order be: motor, controller, voltage reducer, etc...?
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Old 05-18-2015, 03:26 PM   #18
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Default Re: help with digital voltmeter install

Quote:
Originally Posted by kernal View Post
I lifted this from someone else long time ago. Pick your voltage/color, cut it out and tape to whatever. Another option.
Thanks Kernal!!
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Old 05-18-2015, 08:34 PM   #19
remac
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Default Re: help with digital voltmeter install

I would just worry about the motor lead - the big fat one.
The others look to all be the same gauge or size
so it probably doesn't make that much difference.

If any of them have a larger connector though, put that lower than others.
Remember the goal is to minimize the resistance
by maximizing the metal to metal surface contact.

Also make sure that none of the points where the wires attach
get trapped against the contact or another connector
and end up forcing the connector faces apart.
You should rotate the connectors a few degrees so the wires don't
stack up in the same place - keep everything nice and flat.
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Old 05-18-2015, 09:00 PM   #20
bulls74
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Default Re: help with digital voltmeter install

will do. didn't get chance to redo connectors as i got home to a busted water main . plumbers coming out in am.

hopefully be back up and running tomorrow. i'll prob work on cart while they repair water line.
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