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Search took 0.01 seconds. Search: Posts Made By: markopolo

Forum: Electrical | Charging, Systems, Solar and Generators

11-24-2015, 09:02 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Thanks, I figured out the +12v to panel. ...

Thanks, I figured out the +12v to panel.

Where does the solar controller output connect to the batteries?

Forum: Electrical | Charging, Systems, Solar and Generators

11-23-2015, 04:12 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Good catch. C in model # = converter E in...

Good catch.
C in model # = converter
E in model # = equalizer

No confirmation whether it is an equalizer or converter (installed wrong) from photolimo's post here:...

Forum: Electrical | Charging, Systems, Solar and Generators

11-23-2015, 01:54 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Back to the new design from GerryM. Summary: ...

Back to the new design from GerryM.
Summary:

New parallel connections:
AB 6V
EF 12V
CG 18V
DH 24V

New series connections:

Forum: Electrical | Charging, Systems, Solar and Generators

11-23-2015, 01:51 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Just trying to fully understand the existing...

Just trying to fully understand the existing setup:

24V Solar float voltages: (assumed/expected 26.6V or 6.65V at each battery if perfectly balanced)

A: 6.33v
B: 6.43v < New battery
C: 6.94v...

Forum: Electrical | Charging, Systems, Solar and Generators

11-22-2015, 05:54 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

The etrek owners who did the first DIY Cooper...

The etrek owners who did the first DIY Cooper equalizer installations used 80A & 100A models from what I saw.

I think there's an advantage to installing it as an equalizer in an E-trek as it would...

Forum: Electrical | Charging, Systems, Solar and Generators

11-22-2015, 12:00 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Might be the same two photos in one post here: ...

Might be the same two photos in one post here: https://www.classbforum.com/forums/f5/new-roadtrek-rs-e-trek-2236-28.html#post15272

and Hal Devera's photo here:...

Forum: Electrical | Charging, Systems, Solar and Generators

11-22-2015, 10:56 AM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

I've attached a drawing to help me visualize...

I've attached a drawing to help me visualize GerryM's design. Please point out what I missed or incorrectly added and also if I've created any sparks.

2962

I left the Cooper device in place...

Forum: Electrical | Charging, Systems, Solar and Generators

11-22-2015, 12:57 AM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

That's right.

That's right.

Forum: Electrical | Charging, Systems, Solar and Generators

11-22-2015, 12:25 AM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

That's a lot easier for me to follow. I...

That's a lot easier for me to follow.

I don't see any smoke rising but will defer to Greg and Avanti. Still waiting for the smoke from earlier to clear here!

How would you handle the neg wire...

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 11:52 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

I think you have a very good understanding from...

I think you have a very good understanding from reading the rest of your post. 1/2 the amps needed at 24v, reduce wire size by half. Also, I've read that the higher input inverter can be more...

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 09:36 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

I can see the attachment but I'm having trouble...

I can see the attachment but I'm having trouble following it.
Are the series connections:
A/C/E/G & B/D/F/H

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 08:18 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

photolimo - would you be able to post the...

photolimo - would you be able to post the voltages at each battery with the engine running and revved to get the 24v alternator going?

Edit: you only need to measure each of the 4 rearmost...

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 03:25 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Thanks again. I see the 12v parallel connection...

Thanks again. I see the 12v parallel connection now.
So there are 4 existing parallel connections.

2956

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 02:06 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

I'm trying to add more parallel connections to...

I'm trying to add more parallel connections to balance voltages.

The three existing parallels are shown here in yellow:

2955

Paralleling (at 6v) the high voltage batteries with the low...

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 01:35 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Thanks Greg & Avanti. :thumbup: How about E+...

Thanks Greg & Avanti. :thumbup:

How about E+ to G+ ? (almost terrified to see the answer)

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 01:20 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

I'm suitably embarrassed. :-( It's clear now! ...

I'm suitably embarrassed. :-( It's clear now!

(going to delete first image)

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 12:56 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Specifically, we're do you see a short? (So I can...

Specifically, we're do you see a short? (So I can take a look)

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 12:46 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

We think alike:...

We think alike: https://www.classbforum.com/forums/f5/agm-wire-sizes-more-critical-3660.html#post30000

It wouldn't be that easy in an etrek though - need a good plan.

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 12:40 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Would adding the 4 parallel wires drawn in yellow...

Would adding the 4 parallel wires drawn in yellow in the attached schematic cause any problems?

(attachment deleted, caused shorts)

I'm still stuck on trying to balance the voltages with...

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 12:18 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

I understand this a bit better now. Kirchhoff's...

I understand this a bit better now. Kirchhoff's circuit laws would apply. (KVL or KCL, not clear on which or both)

Basically, it's all about achieving balance.

There's some good info here:...

Forum: Electrical | Charging, Systems, Solar and Generators

11-21-2015, 12:04 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Thanks for the pricing link. It's a lot more...

Thanks for the pricing link. It's a lot more expensive than I thought when 7 (I think) would be needed to do the job in an etrek.

Forum: Electrical | Charging, Systems, Solar and Generators

11-20-2015, 10:59 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

This doesn't look like it would cost much: ...

This doesn't look like it would cost much:

https://camdenboss.com/media/category/files/ceq.pdf

Forum: Electrical | Charging, Systems, Solar and Generators

11-20-2015, 10:49 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Page 10 of this pdf has me a bit puzzled:...

Page 10 of this pdf has me a bit puzzled: https://www.nyc-arecs.org/batt1.pdf

Would the cause of the voltage imbalance problem they mention be wire length? I just also see 24v at other points so...

Forum: Electrical | Charging, Systems, Solar and Generators

11-20-2015, 10:24 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

How would a shunt on the positive side work if...

How would a shunt on the positive side work if you're pulling 12v+ at the panel and 24v+ at the inverter. The charging source inputs (alternator, solar, inverter charger) might be in a few other...

Forum: Electrical | Charging, Systems, Solar and Generators

11-20-2015, 08:33 PM

Replies: 154

E-Trek Battery Monitor Install

Views: 22,726

Posted By markopolo

Center tap and mismatched wire lengths both cause...

Center tap and mismatched wire lengths both cause imbalance.
Larger coaches don't need to have two house batteries so far away from the rest of the batteries.
Getting rid of the center tap solves...

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