Reply
 
Thread Tools Display Modes
Old 04-07-2016, 10:39 AM   #1
Senior Member
 
Join Date: Jan 2015
Location: Englewood FL
Posts: 1,587
Trimetric Owner Warning

I already posted this but I guess it went out into the ether!

If you have a Trimetric and you stay connected to shore power almost all the time, don't bother reading further. If you have a solar charger that works every day you can skip this too. However, if you spend long periods without a charger connected you need to read this.

Now, first and foremost, I love my Trimetric and wouldn't have an RV without one. It is the only way to keep track of your battery usage and tell you when to charge that really works (there are other brands as well.) However, if you don't charge for long periods it can be misleading. A Trimetric alone is like using a checkbook and never balancing it. Sure you keep track of how much you put in and how much you take out, but never check the ABSOLUTE amount.

That is what a Trimetric does and it does it very well. However, it really doesn't know what the absolute charge level is. It calculates what you put in and what you take out and give you the net charge. However, it doesn't know about self discharge,required overcharge or other issues like that. Modern converters really don't hit the bank with enough voltage to really get you to a solid 100% since they are worried about overcharging and electrolyte loss.

Bottom line is keep an eye on your resting voltage from the Trimetric. Right now my unit says that I am at 90% but the voltage is 12.3 (after a long rest) and...the hydrometer confirms that I am closer to 50% than I care to be.

For people who operate in this mode, the only solution is an SC-2030 charge controller and 150 or 300 watts of solar. It will hit the batteries hard and keep them at 100%. That is where I am going.
__________________

__________________

2015 335DS
ScottBrownstein is online now   Reply With Quote
Old 04-07-2016, 10:47 AM   #2
Phat Phrog Stunt Team
 
TURBS's Avatar
 
Join Date: Aug 2011
Location: Iowa
Posts: 34,337
This one Trimetric and Converter Trimetric and Converter


2008 2500hd Duramax
2015 Columbus 320RS
2016 nights camped "0"
2015 nights camped "34"
__________________

__________________
TURBS is offline   Reply With Quote
Old 04-07-2016, 09:59 PM   #3
Senior Member
 
Join Date: Mar 2016
Posts: 131
Good info, especially for newbies like me.

Thanks.
__________________
opie is offline   Reply With Quote
Old 04-08-2016, 06:09 AM   #4
Senior Member
 
Join Date: Jun 2013
Posts: 171
Agreed! Trimetric and Bogart solar controller and 280watts of solar is the balls!
__________________
Rbertalotto is offline   Reply With Quote
Old 04-08-2016, 10:43 PM   #5
Member
 
nodrawers's Avatar
 
Join Date: Aug 2015
Location: Tulsa, OK
Posts: 74
ITS A HARD COMBINATION TO BEAT. Since I allready had the TM & SC 2030 & 200w portable I added 200w to the roof. When I plug in the portables I have 400w. Park in shade & still have 200w. Caint beleive how good it works. Now more battery.
__________________
Tom & Laura USAF Ret Smsgt
1995 2500 5.9 Cummins 5 sp 3.54 diff
2011 Coachman Catalina 22FB
Days Camped 2016 91, 2017 110
nodrawers is offline   Reply With Quote
Old 04-08-2016, 11:24 PM   #6
Senior Member
 
Join Date: Mar 2016
Posts: 131
Would you mind posting a link to the 200w portable you have?
__________________
opie is offline   Reply With Quote
Old 04-09-2016, 12:07 AM   #7
Senior Member
 
Bluepill's Avatar
 
Join Date: Jun 2015
Location: Pensacola, FL
Posts: 935
Advice from a long-time trimetric dealer:

One you program it for something around 87 to 94 percent efficiency of your battery, and that allows for recharging more amp hours than are withdrawn (heat etc.) in order to accurately call it 100% full charge again. The other is that if additional amp hours are put in the battery causing it to be measured as over 100% full, as soon as the next discharge begins the meter resets from whatever overcharge back to 100%, since no battery is really at a positive number like 105% charge.
__________________
2015 T12RBST Flagstaff Hardside
2008 Itasca Meridian 37H
Bluepill is offline   Reply With Quote
Old 04-09-2016, 12:53 PM   #8
Member
 
nodrawers's Avatar
 
Join Date: Aug 2015
Location: Tulsa, OK
Posts: 74
Quote:
Originally Posted by opie View Post
Would you mind posting a link to the 200w portable you have?
200W Solar Powered Folding Portable Solar Panel for Caravan Trailer Camping RV | eBay $336.

That being said I wouldn't buy it again. It will sort of work but the stand is really lousy & weak. I am only using the portable panels (reinforced the stand) to feed a trimetric TM2030R & SC2030. It works so well now I added 2 100w from mountainwindtrad... ( 3588 ) $219. They just parallel with the portable when I plug them in (400Watt). Also allows me 200W when parked in the shade I love so much.
__________________
Tom & Laura USAF Ret Smsgt
1995 2500 5.9 Cummins 5 sp 3.54 diff
2011 Coachman Catalina 22FB
Days Camped 2016 91, 2017 110
nodrawers is offline   Reply With Quote
Old 04-09-2016, 02:27 PM   #9
Senior Member
 
Join Date: Mar 2016
Posts: 131
Quote:
Originally Posted by nodrawers View Post


200W Solar Powered Folding Portable Solar Panel for Caravan Trailer Camping RV | eBay $336.

That being said I wouldn't buy it again. It will sort of work but the stand is really lousy & weak. I am only using the portable panels (reinforced the stand) to feed a trimetric TM2030R & SC2030. It works so well now I added 2 100w from mountainwindtrad... ( 3588 ) $219. They just parallel with the portable when I plug them in (400Watt). Also allows me 200W when parked in the shade I love so much.
Thank you.

Sent from a field
__________________
opie is offline   Reply With Quote
Old 04-10-2016, 09:21 AM   #10
Member
 
Join Date: Mar 2016
Posts: 32
Need help with an experiment ....

Quote:
Originally Posted by Rbertalotto View Post
Agreed! Trimetric and Bogart solar controller and 280watts of solar is the balls!
Hi,

I don't have solar (yet). Maybe a year or so. But solar panels work better when the are cool (ironic because you need the sunlight which is what gets them hot -)).

So what if you put Styrofoam underneath the panel. This will keep the reflected heat from the roof off the panel. Now the question is (1) will this help at all (2) should the foam be left white or black.

Are you in the position to try this experiment. My belief is that black is the better choice.

Cheers
__________________

__________________
jkot is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 04:47 AM.