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ddfuller's avatar
ddfuller
Explorer
Feb 28, 2015

FK2100 Weekend Warrior Electrical questions

Hello,
I have 2010 FS2100 Weekend Warrior toy hauler. Got it last year and everything seems to be in good shape, however I suspect the 12V system is weak or could be improved.
Two questions.
1. I have a new single cell 12V Deep Cycle RV battery. When dry camping, and being careful with electrical use (very min. lights, rare water pump usage, etc) the battery will show near drained within a day or so. With my last older camper, similar battery and usage routines would get me 3-4 days of dry camping. This new trailer has C02 and LP sensors that my last didn't. I know the fridge 'auto-defrost' is turned off. I can't figure out why the battery drains so quick. This winter (mild winter here in PacNW) I just plugged the RV into 110V once in while to keep the battery charged. Once I unplug the 110V, the 12V battery would drain to half or less in just a matter of few wks, but the only draw I can think it had was the Co2 sensor up near the ceiling. Lp sensor disconnected, never turned on lights or anything. Is that normal?
2. So I figured I would just have to use my little Honda 1000W gen more often. it's rather quiet, so not a bit deal, however when I plug my 110V outlet into gen and fire up it seems to charge the battery so slowly, if at all I wonder if there is suppose to be a switch or setting somewhere that I didn't engage. My last camper we never had/used a gen. The FS2100 has a ITOA DLS-30 converter (http://www.iotaengineering.com/dls30.htm)

So what tests or checks do I need to do to make me feel more confident for some dry camping this spring? At this stage I don't trust my 12V battery to hold charge for long, nor does it feel like the generator charges very well. I don't want to run a gen for 8hrs to charge a single battery every day. I was expecting better.
Appreciate the help and guidance.
thx.

16 Replies

  • To answer your question. I would say yes this is normal. My old warrior, and every RV that I know of has a battery disconnect. Be sure and switch that to off when your not using your rig. This will help to save some of the charge.
  • Thanks for the 12v side of life ad converter/charger link.. I'll review
    Yes, I charge at home. through winter I just plug in for a few days every few wks to keep the battery level up. Yes, my truck is wired to charge trailer while towing.
  • Ok a few things.

    You really need another battery. One doesn't cut it very well for most RVers. It's very common for RVers to use a Dual 6volt battery setup. One of the best resources is a site called The 12volt Side of Life I highly recommend book marking it and taking the time to read it over in detail, you will learn a lot. I've used it as a resource well over 10 years now.

    Your converter/charger like most RVs is unusually the cheapest they can buy. It won't charge your battery very fast, but it's better then nothing. Progressive Dynamics is one that makes some better units that can rapid charge a battery. Progressive Dynamics

    Many generators come with cables you can attach to the battery, in this case you want to remove one of the leads and just let it run charging the battery directly. Your Honda 1000 may or may not have this option, but it's work looking into, but it's a hassle.

    Finally, do you charge your battery at home? Is it always plugged in, are you checking the water level? Is your truck setup to charge while towing? Many are able but don't always have the required fuse or breaker installed from the factory.
  • I saw the IQ4, but I don't understand what problem of mine it solves? Sorry if an elementary question, but it's not obvious to me how this fixes my slow charging..
  • I would have at least 2 batteries. More and more electrical things on RVs. Many of large RVs have 4 batteries.