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81
Unity / Re: HVAC
Last post by Todd W -
I believe you have to move the AC to the invertor side of the fuse panel from the shore power side. If you get a soft start you might also get to use the AC for short periods of time.
82
Unity / HVAC
Last post by RavenNH -
I have a 2020 Unity Twin Bed with two, one-hundred amp Battleborn batteries.  I've adjusted the solar and inverter to Lithium (it had not been done on install by prior owners) but I have a basic question.  Any reason I cannot use the Dometic rooftop unit on DC at least in fan mode.  I understand no heat or AC unless gen running or plugged in, but why not the fan? 

On that line are the galley and head fans enough for sleeping in warm weather?
Ps: I get the limited inverter capacity, but talking a fan here basically.
Thanks in advance.
83
Unity / Re: storage attached to rear mask?
Last post by RavenNH -
I have been wondering that as well.  If you lay on your back and look up at the end cap there appears to be a lot of room there, at least 6".  I would almost think they could have designed it for a trash compartment. but would imagine you could see the ladder attachment points.
84
LTV Discussion / Re: Kepworth 300AH LiFePO4 Batteries
Last post by BradnChristine -
Quote from: charlie –
Quote from: BradnChristine –
In driving home, we used the AC several times, including 2 4 - hour bursts when we stopped for the evenings in the HOT midwest.  Batteries performed flawlessly and we took them down to 48% (a 303AH draw).  The Atmos 4.4 seemed to use an average of 50A per hour in the 90+ degree temps with similar humidity levels..
Wow ... that is awesome run time.  How is the noise level on the Atmos ?
I never checked the decibel level of the noisy Dometic, but the Atmos was 46.6 db the one time I checked it...then later that evening, after it cooled and I turned it off, I used the same app to check the noise level of the Fantastic fan.  They were nearly identical at 46.6 and 46.5 db. 
DEFINITELY much quieter, and no hard starts as they added a SoftStart Breeze prior to install.  The fan has 4 speeds, I think, and I just put it on Auto.  Noise is NOT an issue with the Atmos.
85
LTV Discussion / Re: Kepworth 300AH LiFePO4 Batteries
Last post by charlie -
Quote from: BradnChristine –
In driving home, we used the AC several times, including 2 4 - hour bursts when we stopped for the evenings in the HOT midwest.  Batteries performed flawlessly and we took them down to 48% (a 303AH draw).  The Atmos 4.4 seemed to use an average of 50A per hour in the 90+ degree temps with similar humidity levels..
Wow ... that is awesome run time.  How is the noise level on the Atmos ?
86
Unity / Re: storage attached to rear mask?
Last post by Spuds Rv -
It may depend on the year.

But since they offer the rear ladder as an option, there must be structural points that you could use to attach something creative.  As I recall the ladder is attached to the top and bottom of the endcap and a couple of places on the endcap face.

Contact LTV and see if you can get information of the ladder attachment points ( and do share :D )
87
Unity / storage attached to rear mask?
Last post by Alfred Kobacker -
I wonder if it is possible to attach a storage cabinet of appropriate design to the rear mask.  I feel confident there are good anchor points in there somewhere - and LTV is great about construction drawings, but I have never seen anyone do this, and wonder why.  There are many hitch-mounted storage products out there, but I'm not a fan - they wobble and appear very awkward.  So why couldn't one simply attach a box to the rear mask?
89
LTV Discussion / Re: Kepworth 300AH LiFePO4 Batteries
Last post by BradnChristine -
Found that BattleBorn finally cleared out their backorders and have the Victron Orion XS 50A B2B charger in stock.  Called them and mine should arrive Wednesday.  That should seriously increase my ability to recharge the 600AH.  I think my Sterling BB1230 barely produced any current past what was used by the refrigerator on our drive home as I think it reduced its output and most of the charging amperage I saw in the SmartShunt was from the solar.

If you make a little effort, there are BattleBorn discounts to be had.
90
LTV Discussion / Re: Kepworth 300AH LiFePO4 Batteries
Last post by BradnChristine -
All went wonderfully.  Install had no issues and we were out of the shop by 11 AM!  The high points:

In driving home, we used the AC several times, including 2 4 - hour bursts when we stopped for the evenings in the HOT midwest.  Batteries performed flawlessly and we took them down to 48% (a 303AH draw).  The Atmos 4.4 seemed to use an average of 50A per hour in the 90+ degree temps with similar humidity levels..

We left the refrigerator on Auto while driving, thus it took a lot of our Sterling BB1230 B2B output in this hot environment.  When the 3 day trip home was finished, we found our net battery status ended at 65%...a 203AH deficit.  Since the drive was about 25 hours, it appears that we needed 8A more charging as we drove to have ended up full.  Solar was impaired by clouds. 

The plan appears to be to generate another 20A of current while driving by replacing the Sterling B2B with a Victron Orion XS 12|12-50A B2B and that should give is a cushion. 

Parking in a no solar input situation with full batteries (600AH) should give us at least 12 hours of AC without having to turn on the generator.  We do make use of the Fantastic fan once the day cools.

Everyone uses power differently, but using a lot of AC, coupled with our usually long driving days seems to work with this much battery.