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Old 02-29-2016, 04:02 AM   #41
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MUSTANG65- My batteries are just now starting to drop off on performance on my OFF-ROAD POPUP TRAILER. These are three 85AH 12VDC Batteries in parallel giving me 255AHs of capacity. Four of these were originally installed in late 2008 and Ilost one battery to overcharging using a WFCO 8945 converter/charger. After that I switched to the PD9260C Converter/charger and the remaining three batteries are still performing today.

My other hobby is Ham Radio which I have consoles in both my Truck and my OFF-ROAD POPUP trailer. I am sharing the same HF SSB 80-10 Radio between the truck and the camper. Sometimes however I am just using my truck and this becomes a battery problem as I am constantly running down my truck start battery.

Game plan now is to install new external batteries in both the Truck Bed and the Trailer tongue area. When camping together I will add both systems together to give double battery capacity. I want to move the current 255AH battery setup to the house and setup there as well to run a Power Inverter and have backup battery power for my house ham radio setup.

My OFF-ROAD POPUP trailer already has a great battery monitor panel I built up using two 12VDC digital voltmeter meters and one 70A DC Current meter. I may move this panel to the house since it does not have a settable DC VOLTS alarm feature which is really a must have thing when camping off the power grid. Then both my Truck and my OFF-ROAD Trailer will use separate PZEM-051 Battery monitor meter.

I also am just now starting to think solar panels for the OFF-ROAD POPUP trailer roof area. I have enough room here for a two 120WATT Panels and one 240Watt panel. This will enhance my 2KW Generator operation recharging my depleted batteries each morning when allowed to run my generator here on the East side of the US. Once I get past the initial high current demands when the batteries are hit with 14.4VDC I can switch to solar panels and should get my banks back up to their 90% charge state before I need to start using them again for the next day/nigh of the batteries. I suspect we will be getting high sun here for 5-6 hours...

Been thinking about these changes here for a couple of years now and slowly adding parts and ideas when I can afford them.

I really wanted to find a couple of these 70A DC Current donut samplers but I only got one of these back in 2008 and then the company sold out and the price went from $40 to $800 dollars haha...


This is driving my DC Current meter in my current homemade battery monitor panel in my OFF-ROAD Popup trailer.


This is my battery panel mounted in my trailer...


Always playing with something...

Roy Ken
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2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
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Old 02-29-2016, 04:54 AM   #42
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MUSTANG65- I really wanted to find a couple of these 70A DC Current donut samplers but I only got one of these back in 2008 and then the company sold out and the price went from $40 to $800 dollars haha...
Can you use this with your current (no pun intended) setup? Not sure if you will need a burden resistor.

Don
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Old 02-29-2016, 07:34 AM   #43
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MUSTANG65- Don... I have looked at those already. The hole is not big enough to slide in 4AWG cable. Some of my cables are also 2AWG size...

I think I read those hole size was .25 by .4 inches...

I also want something that uses 12VDC verses 5vdc like alot of these things use. Won't have to adapt down for that...

The Honeywell unit was perfect for my application. I haven't looked again for awhile maybe some of those are back for sale at a good price...

I like the hall effect sensors... Just slide a cable thru them and you are good to go. Don't have to worry about hot wires getting shorted out somewhere when using the SHUNT RESISTORS... It also works out better for me to use the positive side of the battery where all of my BLUE SEA Battery switches are located verses the ground side like all of the shunts like to use...

NOTE: I see DIGI-KEY is selling the Honeywell CSCA-A SERIES for 100A for around $38 but you would have to build up a cable to mate with their unit.. Thats not too bad actually...



Roy Ken
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Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS

"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
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Old 03-20-2016, 05:06 PM   #44
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If you are interested in looking at the battery status in both charging or discharging modes, there is an easy fix. Wire the load/battery display connections that connect to the shunt to a DPDT (Double Throw-Double Pole) switch and manually switch it when you are charging or discharging. This will change the display from one mode to the other. You could mount the DPDT switch right next to where you mount the Digital Display.

Don
I just finished wiring mine up and installing. I liked the idea of seeing charging, so I installed the DPDT switch (on-off-on) as you suggested. I'm not getting anything beyond voltage when I have the switch flipped to the other pole. Actually, when I'm plugged into shore power, I get no data (not that it really matters, but I thought I would). When I unplug shore power, I see what seem like reasonable numbers. About 0.5 amp nothing else on draw, about 7.5 amp with furnace running and that's as far as I experimented so far.

I'm happy with the result, other than the fact that the switch didn't do much. Nice little meter for not much money. I installed by using an electrical plate and grinding down the screw nubs , followed by a coat of paint, then screwed to the woods panel in my battery compartment.

I'd be curious if anyone else got theirs to show charging??
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Old 03-20-2016, 06:05 PM   #45
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That's a good McGiver for a mounting box. I'm still looking out for one to mount mine inside.

Too many small projects on hold now due to family sickness.
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Old 03-20-2016, 08:26 PM   #46
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CDASH - I may have asked this before but how bright is the display in the dark. My meters turned out really bright and I had to install ON-OFF small toggle switches on them. Lit up my whole OFF-ROAD POPUP camper....

Roy Ken
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Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS

"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"
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Old 03-21-2016, 05:39 AM   #47
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CDASH - I may have asked this before but how bright is the display in the dark. My meters turned out really bright and I had to install ON-OFF small toggle switches on them. Lit up my whole OFF-ROAD POPUP camper....

Roy Ken
Good Morning,
The display light can be turned on and off.
Don
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250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
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Old 03-21-2016, 05:43 AM   #48
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I'd be curious if anyone else got theirs to show charging??
I will try to wire it in today with the switch... I just reversed the wires on my wife's scooter (used before her knee operation) and it displayed charging and discharging. I reset the display before reversing the wires.
Don
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2013 Jayco Eagle 284BHS
250Watt Grape Solar Panel, MorningStar MPPT 60 Charge Controller
1500 Watt Ramsond PSI, 2 Trojan T145 Batteries (260Ah)
2 - AirSight Wireless IP Cameras (used as rear view cameras)
EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
157" Wheel base, HD Towing Package

Our Solar Album http://www.jaycoowners.com/album.php?albumid=329
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Old 03-24-2016, 08:38 PM   #49
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The last time I was able to make a trip in the trailer was 1998. Life got in the way. It sure was less complicated back then,

I used this to monitor the battery along with a cheap meter from Radio Shack.
OK, my chart wasn't even this detailed. My chart had 100% 75% 25% and dead.

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Old 04-30-2016, 07:29 PM   #50
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I love this little guy. It fits on the cabinet rail perfectly.
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