How Long will my 100AH LiPo Battery Last?

[Pilot4net]

Good morning! Got a question for all you experts this morning....

We are making a trip to Broken Bow, OK this summer and this will be our first long trip with our new '25 Valor. It has the 800w'ish solar package and the 100AH LiPo battery. We have the 17 cuft 12V French door Furrion refrigerator. We will breaking our own rule, and the general rule of thumb, about not traveling more than 2-4 hours on a given travel day and will be on the road for a total of like 7 hours.

My concern is this... Let's say it's cloudy all day and solar is contributing nearly zero to battery charge, and taking into account that the truck will not be charging the battery via pigtail, by the time we finish the 7 hour trip, will we have enough charge left in the battery to properly run the hydraulic leveling system? I know the refrigerator and the CO/LP detector will be the only real draws on the 12V system, but not sure how much that draw will be to calculate the power consumption.

I tried finding a spec as to current draw on my specific fridge but in the manual, Furrion doesn't list a power consumption/amp draw figure, so I'm relying on y'all's thoughts and actual experiences.

Let me know what you think. Thanks!

 

[BryanValRox]

Good morning! Got a question for all you experts this morning....

We are making a trip to Broken Bow, OK this summer and this will be our first long trip with our new '25 Valor. It has the 800w'ish solar package and the 100AH LiPo battery. We have the 17 cuft 12V French door Furrion refrigerator. We will breaking our own rule, and the general rule of thumb, about not traveling more than 2-4 hours on a given travel day and will be on the road for a total of like 7 hours.

My concern is this... Let's say it's cloudy all day and solar is contributing nearly zero to battery charge, and taking into account that the truck will not be charging the battery via pigtail, by the time we finish the 7 hour trip, will we have enough charge left in the battery to properly run the hydraulic leveling system? I know the refrigerator and the CO/LP detector will be the only real draws on the 12V system, but not sure how much that draw will be to calculate the power consumption.

I tried finding a spec as to current draw on my specific fridge but in the manual, Furrion doesn't list a power consumption/amp draw figure, so I'm relying on y'all's thoughts and actual experiences.

Let me know what you think. Thanks!

Morning, just a couple of thoughts, questions and some experience sharing.

1. Please share more about your truck line not charging the battery comment. Is this because the Valor line doesn't utilize this feature ?
2. You could figure the fridge amp draw via a clamp on amp meter or via a digital display if you have a shunt installed or even if you can Bluetooth monitor your battery or system.
3. Remember your fridge will cycle so power draw will not be continuous
4. You will likely get “Some” level of Solar charging even on a cloudy day.

We have 310 RL equipped with a LA deep cycle marine battery rated at 86AH and the standard Solar system from the factory. It is also equipped with disc brakes which pull current from the battery to run the actuator pump.

While not advised, we have towed 11 hours straight 2 times and arrived both times with more then ample power left to level and extend slides.

Granted our truck charge line is active via a 20 amp Dc/Dc charger and Solar was charging at different levels during the trip due to weather and available sunlight.

Your lithium battery would have more usable capacity .

If you have capacity concerns, you could switch out or add battery/batteries or consider adding a DC/DC charger and or bring the truck charge line into the system (using the right approach of course, give the charging rate difference between you FLA in your truck and Lithium in your coach)

Just some thoughts/ comments and experience from a NON -EXPERT!

 

[RoadJunkie]

I'm thinking that this is one of those questions you're going to have to answer based on individual real-world experience. You won't be able to measure the current accurately because it will vary based on several factors. I'm a bit surprised that with 800 watts of solar panel that you have a 100 Ah battery. I would swap that puppy out for more capacity.

 

[Oregon_Camper]

A 100 amp hour battery will most certainly have enough power to operate your jacks after a 7hr drive (even and 12hr drive)

Here is a test I did with our 340RL in our barn, with zero sunlight. You can see the frig and other vampire draws will pull a little over 110 amps in 24hrs. Again..with zero solar adding back power. If you're still concerned, you can put the frig into "night mode" to save even more power.

Here is my post on my testing of our power system

12v Refrigerator Battery Power Test

** Ignore if you saw this on the Alliance Facebook groups...but some folks here don't use Facebook ** I wanted to figure out just how much power our Norcold 12 refrigerator uses in 24-36 hour period. With our Alliance 340RL parked in our barn, so it is getting no solar power, I turned the...

alliancervowners.com

 

[Pilot4net]

So...

1. The truck charge line that is normally connected in the 7 pin plug pigtail from the truck to the RV is NOT connected by Alliance when the trailer comes equipped with a lithium battery because of the different charge profiles that the lithium battery requires and the truck is not able to offer.

2. Yes, the battery is only the 100ah battery that comes with the Valor "Off-the-Grid" package along with 2- 400 watt solar panels and charge controller. (Will probably invest in at least another 100ah lipo battery.)

3. I did check the fridge draw with an amp clamp but I also knew, as you all stated, that the current draw would vary as the fridge cycled on and off so figuring the amp draw over and extended time wasn't attainable with a data logging ammeter.

4. I will have to check though.... I believe both the Victron controller as well as the battery's BMS app would be able to show power consumption over time so I may be able to shut off everything other than fridge (and other phantom draws) and see how that works.

Thanks for the thoughts guys and the real world testing there Oregon_Camper!