Good Sam Club Open Roads Forum: Truck Campers: Inverter to charge battery
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Truck Campers

Open Roads Forum  >  Truck Campers

 > Inverter to charge battery

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next
Mickey Finn

Whitefield, Maine

New Member

Joined: 03/12/2018

View Profile


Offline
Posted: 03/12/18 04:24pm Link  |  Quote  |  Print  |  Notify Moderator

Hi Very new to truck campers. I have a single 12 volt group 27 lead acid deep cycle in my camper. I have an 1100 watt inverter in my truck(6 cyl Tacoma). If I plug my shore power w/adapter into the inverter and run the truck engine am I charging the battery? How long will it take at idle to charge? Also can I run the fridge at 110? Thanks

Lwiddis

El Pueblo Señora la Reina de los Ángeles

Senior Member

Joined: 08/12/2016

View Profile



Good Sam RV Club Member

Offline
Posted: 03/12/18 04:50pm Link  |  Quote  |  Print  |  Notify Moderator

Ah, Mickey. Think solar, me boy, think solar. Small batteries scream for solar.


2015 Winnebago 2101DS TT & Tahoe LTZ, 300 watts WindyNation solar-parallel & MPPT, Trojan T-125s. TALL flagpole for US flag. Prefer USFS, COE, BLM, NPS, TVA, USF&WS, state & county camps. Bicyclist! 14 year Army vet - 11B40 then 11A - old MOS 1542 & 1560.

Old-Biscuit

Verde Valley

Senior Member

Joined: 06/20/2009

View Profile



Posted: 03/12/18 05:04pm Link  |  Quote  |  Print  |  Notify Moderator

Unless the inverter ALSO has a charger then it is NOT doing any charging of battery

With truck running your truck alternator will be supplying a minimal charge to battery......

Fridge on 110 via inverter....and only one single 12V group 27 battery------NO


Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
On the Road Debt Free April '07
Off the road still Debt Free Jan. '14

KD4UPL

Swoope, VA

Senior Member

Joined: 03/16/2008

View Profile



Good Sam RV Club Member

Offline
Posted: 03/12/18 05:24pm Link  |  Quote  |  Print  |  Notify Moderator

So you have a regular inverter in the truck and want to plug in the trailer to power it's onboard charger to charge your trailer battery, correct? This will work but is kind of complicated means of doing it.
Your fridge will pull about 300 watts on 120v AC so that's about 30 amps at 12v coming out of your alternator. If you truck is just idling I don't know how much it will put out but likely not that much. Your camper should have an electric cord that plugs into the truck for 12v power as well as marker lights and maybe signal and brake lights. This cord should allow the truck alternator to charge the battery when running without using the inverter or the camper's charger. If it's not set up that way I would make it that way. You eliminate 2 pieces of equipment and lots of inefficiency and inconvenience.
Running the fridge on 120v this way is probably less fuel efficient and cost effective than just running it on propane but I guess you could do it if you wanted to. Most people just run them on propane like they're designed to do. They typically cool better on propane than electric anyway.
It's impossible to say how long this set up would take to charge your battery. Nobody here knows what charger you have in your camper or if your truck's alternator puts out enough power at idle to power it.

Mickey Finn

Whitefield, Maine

New Member

Joined: 03/12/2018

View Profile


Offline
Posted: 03/12/18 07:03pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for the info.. Electricity is a black art to me so I'm a bit confused. I easily ran a 7 cu foot freezer full of fish off the inverter while underway from Alaska to Maine last fall. If the inverter is producing 110 volts/1100 watts, how is that different from shore power? Camper is wired with 3 flat plug for truck. Truck has 4 flat plug for my boat. I can't find any info. about what my truck alternator produces at any rpm's . I plan on mostly boon docking and don't have room for a generator.

Buzzcut1

Norcal

Senior Member

Joined: 10/04/2010

View Profile


Offline
Posted: 03/12/18 07:59pm Link  |  Quote  |  Print  |  Notify Moderator

Mickey Finn wrote:

Thanks for the info.. Electricity is a black art to me so I'm a bit confused. I easily ran a 7 cu foot freezer full of fish off the inverter while underway from Alaska to Maine last fall. If the inverter is producing 110 volts/1100 watts, how is that different from shore power? Camper is wired with 3 flat plug for truck. Truck has 4 flat plug for my boat. I can't find any info. about what my truck alternator produces at any rpm's . I plan on mostly boon docking and don't have room for a generator.


add a front receiver hitch and use a tray to carry the generator up front

like one of these
https://www.torklift.com/rv/lock-and-load-sidekick


2011 F350 6.7L Diesel 4x4 CrewCab longbed Dually, 08 Lance 1055, Torqlift Talons, Fast Guns, upper and lower Stable Loads, Super Hitch, 48" Super Truss, Airlift loadlifter 5000 extreme airbags


time2roll

Southern California

Senior Member

Joined: 03/21/2005

View Profile



Good Sam RV Club Member


Posted: 03/12/18 07:59pm Link  |  Quote  |  Print  |  Notify Moderator

It is the same as utility power. How long does the charge take plugged in at home?

Otherwise you need to post the model number of the converter in the camper. Generally a low battery takes 3 to 24 hours to get to 90% charged depending on the converter.

I recommend about 200 watts solar for off-grid camping... assuming you have some sun.


2001 F150 SuperCrew
2006 Keystone Springdale 249FWBHLS
675w Solar pictures back up

Lwiddis

El Pueblo Señora la Reina de los Ángeles

Senior Member

Joined: 08/12/2016

View Profile



Good Sam RV Club Member

Offline
Posted: 03/12/18 08:20pm Link  |  Quote  |  Print  |  Notify Moderator

Mickey, me boy. RVing and electricity are inseparable. Learn, lad, learn.

996Pilot

San Diego

Full Member

Joined: 05/18/2016

View Profile


Offline
Posted: 03/12/18 08:34pm Link  |  Quote  |  Print  |  Notify Moderator

Year, make and model of the camper to let us figure out how it's equipped?


2006 Outfitter Apex 8, 260W Kyocera Solar, Blue Sky MPPT Controller, (2) Trojan T-105's, 35A Converter - 3 Stage Charger, Fastguns
2015 RAM 3500 SRW Laramie Longhorn 6.7 Cummins 68RFE
2006 Dodge Ram 2500 Laramie 5.9 Cummins 48RE TRADED


lawrosa

Howell NJ

Senior Member

Joined: 10/06/2013

View Profile



Posted: 03/13/18 12:10am Link  |  Quote  |  Print  |  Notify Moderator

13 volts / 900 watts the converter will want is about 70 amps. This will be what your alt needs to put out to power the converter and a discharged camper battery

What size wire is going from your inverter in your truck to the batterys.

1. Even 2 gauge wire will get warm. Ask me how I know.
2. Unless you have tow package I doubt your alt puts out 70 amps. Or its just 70 amps. I think the tow package tacomas put out 130 amps.


Your better off just using jumper cables from truck battery to camper battery..

If you do insist on trying it, please try it at home,.

This way you dont get stuck in the woods when the alternator over heats and stops working.

Hope your fused properly too... Electrical fires are no fun...


Mike L ... N.J.

2006 Silverado ext cab long bed. 3:42 rear. LM7 5.3 motor. 300 hp 350 ft lbs torgue @ 4000 rpms
2018 coachmen Catalina sbx 261bh


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 3  
Next

Open Roads Forum  >  Truck Campers

 > Inverter to charge battery
Search:   Advanced Search

Search only in Truck Campers


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2018 CWI, Inc. © 2018 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS