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Search took 0.01 seconds. Search: Posts Made By: gregmchugh
Forum: Electrical | Charging, Systems, Solar and Generators 11-24-2015, 08:42 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
The descriptions and installation diagrams for...

The descriptions and installation diagrams for the equalizer version of the Cooper show that loads can be powered from the 12v connection point. A difference between the two is that for the the...
Forum: Electrical | Charging, Systems, Solar and Generators 11-23-2015, 02:53 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
Did not notice before that there are two versions...

Did not notice before that there are two versions of the Cooper, the equalizer that outputs 1/2 of the input and the converter that has a fixed output voltage, nominally 13.5v. So you can also use...
Forum: Electrical | Charging, Systems, Solar and Generators 11-22-2015, 09:51 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I don't think there is anything special inside...

I don't think there is anything special inside the Cooper unit, I think it just produces a voltage that is 1/2 the 24 volt input side voltage on the 12 volt side with a limit on how much current it...
Forum: Electrical | Charging, Systems, Solar and Generators 11-22-2015, 12:40 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
Very good markopolo, I thought there might be...

Very good markopolo, I thought there might be some other ones besides those but those seem to be good examples of the rear batteries and I now recall that I had seen them before...
Forum: Electrical | Charging, Systems, Solar and Generators 11-22-2015, 11:48 AM
Replies: 154
Views: 22,728
Posted By gregmchugh
GerryM, great analysis. I am not seeing any...

GerryM, great analysis. I am not seeing any photos, are they in an album?
Forum: Electrical | Charging, Systems, Solar and Generators 11-22-2015, 01:41 AM
Replies: 154
Views: 22,728
Posted By gregmchugh
If you want to compare two systems that operate...

If you want to compare two systems that operate at different voltages convert everything to watts and watt hours.

Battery banks, 400 amp hours X 24 volts = 800 amp hours X 12 volts = 9600 watt...
Forum: Electrical | Charging, Systems, Solar and Generators 11-21-2015, 09:24 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I can see it now...

I can see it now...
Forum: Electrical | Charging, Systems, Solar and Generators 11-21-2015, 08:11 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I don't see a diagram...

I don't see a diagram...
Forum: Electrical | Charging, Systems, Solar and Generators 11-21-2015, 02:45 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
Yes, you can connect the two halves of the...

Yes, you can connect the two halves of the battery bank at 6v, 12v, and 18v in addition to the ground and 24v points but that is it. You now have 4 sets of two 6v batteries that are connected in...
Forum: Electrical | Charging, Systems, Solar and Generators 11-21-2015, 01:44 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I am a software engineer, you just jumped past my...

I am a software engineer, you just jumped past my electrical engineering expertise, which is pretty shallow... :)

But it still looks like a short to me across F and G...
Forum: Electrical | Charging, Systems, Solar and Generators 11-21-2015, 12:53 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
Looks to me like you are shorting the batteries...

Looks to me like you are shorting the batteries with the yellow connections.

Am I missing something??
Forum: Electrical | Charging, Systems, Solar and Generators 11-21-2015, 12:16 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I missed before that the balancers, Victron and...

I missed before that the balancers, Victron and this one, only activate during charging while the Cooper equalizer/converter is obviously always active even during discharge.
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 11:54 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
The Bogart Trimetric has separate power and shunt...

The Bogart Trimetric has separate power and shunt signal lines so I think there is a way to use it with a shunt on the +24v side assuming of course that there is no other load tap in the bank. 24 to...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 09:56 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I still think you can install a Bogart Trimetric...

I still think you can install a Bogart Trimetric with a shunt on the +24v end of the bank unless I am missing something about how it gets installed. I won't be surprised if I am wrong, I just don't...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 08:15 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I guess the basic question is that if larger RVs...

I guess the basic question is that if larger RVs with 8 6v AGMs configured for 12v seem to work fine without any sort of balancing of the 6v batteries why would an 8 6v AGM etrek configured for 24v...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 07:21 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
You still need 3 Victrons to balance all the 6v...

You still need 3 Victrons to balance all the 6v batteries in 8 battery 24v Etrek and with the two locations it is lots of wire to run from front to back. Not something needed I would hope.
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 06:07 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I got you now but you are using 3 Victron modules...

I got you now but you are using 3 Victron modules not the single one shown in the diagram. 3 Cooper units would work for that too, I expect, but the cost would be ridiculous since they must be much...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 05:35 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I guess there might be a communication problem...

I guess there might be a communication problem here, take the Victron diagram and replace the Victron module with a Cooper module with no change in battery wiring. How can one produce a different...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 04:43 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
Wouldn't the Cooper connected as shown for the...

Wouldn't the Cooper connected as shown for the Victron be doing the same balancing as the Vectron? No different is it?

I agree that for the 8 battery eTrek with no 12v tap you should just...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 03:28 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
My understanding is that the Victron balancer has...

My understanding is that the Victron balancer has just the balancer function and the Cooper can be configured as a balancer/equalizer or a converter or both at the same time. At least that what it...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 02:48 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
An equalizer is functionally more like a balancer...

An equalizer is functionally more like a balancer than a converter but The Cooper diagram shows their unit configured either way or both at the same time I guess.
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 02:21 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
Not sure about the Victron battery monitor but I...

Not sure about the Victron battery monitor but I don't think there is a problem with installing a Bogart Trimetric with the shunt on the +24v side of the battery bank, good idea to put a cover over...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 12:00 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
Clearly the temperature differences between the...

Clearly the temperature differences between the two battery locations is a significant issue in many ways. I have the standard two house batteries under the hood which is the normal Sprinter...
Forum: Electrical | Charging, Systems, Solar and Generators 11-20-2015, 02:06 AM
Replies: 154
Views: 22,728
Posted By gregmchugh
Seems like the idea of splitting the two front...

Seems like the idea of splitting the two front batteries between the two halves of the 24v bank is a good idea, does make a single shunt feasible for the whole bank. What gauge cables currently run...
Forum: Electrical | Charging, Systems, Solar and Generators 11-19-2015, 08:19 PM
Replies: 154
Views: 22,728
Posted By gregmchugh
I just had never seen it done on larger RV...

I just had never seen it done on larger RV battery banks, 8 AGM 12v setups for instance have no connection across the 6v batteries, so wondered why they might be doing it...
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