Reply
 
Thread Tools Display Modes
Old 04-24-2012, 12:55 PM   #1
Member
 
Rustymax's Avatar
 
Join Date: Mar 2011
Location: Close to North / South Carolina border and Blue Ridge Mountains
Posts: 51
Fast charging batteries

I was dry camping for the first time in my new travel trailer last week and I have a question about charging batteries.
I am wondering if I bring my battery charger and plug it directly into the generator will it charge the batteries faster than the trailer inverter. Any experience here?
My generator(s) is a Yamaha 2000is and has two 110 plug outlets. Additionally this generator has a special charging cable for battery only charging. I tried to fast charge my dual battery setup by connecting the alligator clip to the battery terminals but this didnít appear to produce a much faster charge than using the trailer inverter, perhaps I am overlooking something, Iím a newbie.
Any tips for keeping the batteries lasting longer when dry camping?
__________________

__________________
Rustymax is offline   Reply With Quote
Old 04-24-2012, 02:18 PM   #2
Moderators' Assistant
 
bikendan's Avatar
 
Join Date: Jan 2007
Location: Camano Island, Washington
Posts: 13,269
First, the trailer has a converter, not an inverter. Many newbies get them mixed up.
Second, your converter will charge about as good as a separate charger.
Third, the 12v cables that come with the Yamaha, are the worst option to charge the battery and are only useful for emergency uses.
__________________

__________________
Dan-Retired Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 4x4 3.5 Ecoboost w/Max Tow Package
Equalizer WDH and Prodigy BC
bikendan is online now   Reply With Quote
Old 04-24-2012, 02:50 PM   #3
Phat Phrog Stunt Team
 
TURBS's Avatar
 
Join Date: Aug 2011
Location: Iowa
Posts: 34,337
Bikendan speak the truth.
__________________
TURBS is offline   Reply With Quote
Old 04-24-2012, 03:02 PM   #4
Senior Member
 
Join Date: Dec 2011
Location: Southwest Wyoming
Posts: 588
Quote:
Originally Posted by bikendan View Post
First, the trailer has a converter, not an inverter. Many newbies get them mixed up.
Second, your converter will charge about as good as a separate charger.
Third, the 12v cables that come with the Yamaha, are the worst option to charge the battery and are only useful for emergency uses.
Curious. Why are the 12V cables that come with the Honda a bad option?
__________________
2012 Grey Wolf 19RR
2008 Dodge 2500 CTD

Nights camped 2012 - 35
Nights camped 2013 - 46
rkswyo is offline   Reply With Quote
Old 04-24-2012, 03:08 PM   #5
Moderator Emeritus
 
Join Date: Nov 2008
Location: Winston-Salem, NC
Posts: 2,381
How did Honda get here? OP said he had a Yamaha generator. Doesn't matter, what I remember of generator specs, the 12 volt cable is good for max of about 10 amps max, on most brands. Usually that is used to recharge the battery in electric start models. The converter in the trailer could go as high as 50, or more, depending on model of the converter, of course.
__________________
LadyWindrider
2012 Ford F250 ext. Cab 4x4
2002 Jeep Wrangler Sahara
2008 Yamaha V-Star 650 Classic

2008 Work and Play 18LT
LadyWindrider is offline   Reply With Quote
Old 04-24-2012, 03:08 PM   #6
Site Team - Lou
 
Herk7769's Avatar
 
Join Date: Oct 2009
Location: South Eastern PA
Posts: 21,169
I seem to remember a thread that proved to me that that was true.
Now I need to go back and find it.
Bummer.
__________________

Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
Herk7769 is online now   Reply With Quote
Old 04-24-2012, 03:10 PM   #7
Site Team - Lou
 
Herk7769's Avatar
 
Join Date: Oct 2009
Location: South Eastern PA
Posts: 21,169
Ah, that was it. The amp limit on the DC portion of the generator.
That is why I use a dedicated 120 VAC Ship-n-Shore charger plugged into the AC outlet on my Yamaha 3000.
__________________

Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW
Herk7769 is online now   Reply With Quote
Old 04-24-2012, 04:31 PM   #8
Moderator Emeritus
 
Triguy's Avatar
 
Join Date: Aug 2010
Location: Southeast Wisconsin
Posts: 6,950
I use a 40amp three-stage smart charger and prefer it over the converter - a wfco 55amp.

I don't know what converter you have, but consider that the wfco 55-amp in my trailer doesn't seem to go into the 14v bulk mode at all. It stays at 13.6v and will drop to its float 13.2v after a couple of days (measured at the converter). I've read that this issue about not getting to the 14v bulk mode is common with the wfco 55amp.

Also, because I have Trojan batteries that need 14.8v, the converter is less capable as its upper limit is 14.4v in bulk (which it won't reach anyway ).

I can't speak to the generator but I do think there is a general performance difference between a separate charger and the converter.
__________________
Scott
DW, 3 Kids and our Goldens

2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD
Triguy is offline   Reply With Quote
Old 04-24-2012, 07:45 PM   #9
Senior Member
 
kz08h5's Avatar
 
Join Date: Apr 2009
Location: Carmel, Indiana
Posts: 308
You need to read the 12 Volt Side:

The 12volt Side of Life (Part 1)

This is a good tutorial on batteries and charging. The main problem with RV OEM charging systems is that they are nothing more than trickle chargers. You will never get a full charge. I have ruined on battery not knowing any better. I now use a Schumaker 3 stage charger each morning to charge the battery. Also, don't go by the status panel in the RV to determine battery charge.

As far as the 12v port on the generator, it will basically to the same thing as your RV converter. It will never fully charge your battery.
__________________
kz08h5

2008 Chevy Silverado 2500 Duramax Crewcab
Jeep Commander - sold
Flagstaff V-Lite WRB26
kz08h5 is offline   Reply With Quote
Old 04-24-2012, 07:50 PM   #10
Senior Member
 
Rugged Brown's Avatar
 
Join Date: Jan 2011
Posts: 2,098
So, Am I hearing that a good dedicated battery charger connected to the said Yamaha 2000 generator is better than the RV converter. Can you give it to me in laymens's language.
__________________

__________________
Terry/Bernadette
Lily the Yorkie
2015 Dodge Ram Sport 1500
2015 Crossroads Zinger ZT28BH
Rugged Brown is offline   Reply With Quote
Reply

Tags
battery

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 02:46 PM.