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Open Roads Forum  >  Class C Motorhomes  >  Class C

 > Anyone using Lithium batteries? Comments?

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VA-Apraisr

glen allen, VA

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Posted: 09/29/20 06:19am Link  |  Quote  |  Print  |  Notify Moderator

Looking at upgrading to Battleborn Lithium batteries with charger/inverter for superior boondocking. Tired of running generator/engine to recharge the 2-Optima blue AGM batteries in use now. According to Battleborn, this will be far superior than what I'm used to seeing in terms of consumption and the daily charging cycle. I use a Dish satellite for TV, lights, furnace, frig, toaster, coffee maker, etc. With their system, I could also run the microwave without using the generator.

Anyone out there have first-hand experience with Lithium?

bobndot

USA

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Posted: 09/29/20 06:28am Link  |  Quote  |  Print  |  Notify Moderator

I am thinking of going the same route when my AGM's are done. I do use my rv all year round and that includes cold temps below 32F. 0-32F I'm on the fence as of now.
If you are interested , there is a good comparison on YouTube for cold temp camping.
"AGM vs Lithium Batteries for Sub-Freezing Solar Powered Camping"

phemens

Montreal, Canada

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Posted: 09/29/20 06:29am Link  |  Quote  |  Print  |  Notify Moderator

Plenty here do. I've been using 6 of them since last year, very happy with the setup, but you will need solar if you want to avoid generator - you can safely draw down the batteries to 90% (I don't go beyond 80%), but they need feeding. For the microwave, you will need a solid inverter and beefy wiring.
I started a separate thread on cold weather charging of LifePO4 batteries. I built an insulated box (R10 styrofoam), with a waste tank heating pad and aluminum plate under the batteries to keep them warm. I also added a Victron temperature sensor to my equipment so that the MPPTs will not attempt to charge below 5C. Discharging is not the issue, they cannot be charged below 0C or you will damage them.


2012 Dutchman Denali 324LBS behind a 2006 Ford F-250 V10 out of Montreal
1 DW, 1 DD, 1 DS, 2 HD (Hyper Dogs)
1200w solar, 600AH LIFePO4, Yamaha EF2000 gen, Samlex 3000w Inverter

MDKMDK

Canada

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Posted: 09/29/20 10:01am Link  |  Quote  |  Print  |  Notify Moderator

There are some top end manufacturers/retailers that offer models that can be charged down to -4F/-20C without damage, by borrowing some of the charging current, and self heating the batteries. Both Relion and LifeBlue make such a battery. There may be others.
I have 2 X 100 Ah Relion RB100-LT batteries (charged by 3 X 100W ZAMP panels off grid) and so far so good. We don't worry about running out of power any more.


Mike.
2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 Wrangler JKU (sold @ ????)
2016 Sunstar 26HE, V10, 3V, 6 Speed (sold @ 4600 miles)
2002 Roadtrek C190P (sold @ 315,000kms)

pianotuna

Regina, SK, Canada

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Posted: 09/29/20 10:22am Link  |  Quote  |  Print  |  Notify Moderator

I'd recommend looking at SiO2 jars instead. They can be discharged to stone bone dead 620 times without dying. They are about 1/2 the price of LI. They can be used and charged at -40. They can be draw on at a rate of 9C. They do not need to be recharged to 100%.

The only negative is weight. The "best buy" is currently the 100 amp-hour battery.

For USA pricing go here:

https://azimuthsolarproducts.com/product-category/batteries/sio2/


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp hours of AGM in two battery banks 12 volt batteries, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

Second Chance

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Posted: 09/29/20 10:38am Link  |  Quote  |  Print  |  Notify Moderator

We have two Battle Born 100 AH batteries with 300 watts solar, automatic transfer switch and a 2,000 watt inverter. Our main intent (and the reason we don't have more batteries and solar) was to run the residential refrigerator on long travel days. The system has done very well at doing that and more. I put the thermostatically controlled heating pads on the batteries for cold weather (batteries are mounted in the enclosed but unheated front compartment/tool/battery/generator area of a fifth wheel). We have been extremely happy with the setup. I'm glad to be rid of battery maintenance and not worry about discharging the batteries all the way.

Rob


U.S. Army retired
2020 Solitude 310GK-R
MORryde IS, disc brakes, solar, DP windows
(Previously in a Reflection 337RLS)
2012 F350 CC DRW Lariat 6.7
Full-time since 8/2015


craz z

Montana

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Posted: 09/29/20 10:53am Link  |  Quote  |  Print  |  Notify Moderator

I've been using DIY cells for a couple years now.

I would only consider lithium at this point for the coach side of batteries.

Power is no longer an issue. Water and sewer is what brings me back to civilization.

* This post was edited 09/29/20 12:21pm by craz z *

bobndot

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Posted: 09/29/20 11:24am Link  |  Quote  |  Print  |  Notify Moderator

This subject is new to me. I am missing something here ?
During cold weather, between 0-32F, it would be necessary to preheat a Lithium battery before my solar panel starts to charge it. Correct ?
Therefore, if I have my rv stored or parked in my driveway for days or weeks, I can't just forget about it like I do using my AGM batteries, correct ?
Using lithium's , I too was thinking about using an insulated battery box and install a heat pad in order for my solar to start charging it. Therefore, I really need to leave the rv plugged in to shore power in order to heat the pads.
The only real advantage for me to use lithium is for summer use when I could drop below 50% while boondocking and not worry about charging them back up on warm days.
If that's the case, using my AGM's in the winter and lithium's in the summer seems to be a better option . Either that or look into the Si02 batts as suggested. Am I correct on my thinking ?

craz z

Montana

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Posted: 09/29/20 12:35pm Link  |  Quote  |  Print  |  Notify Moderator

bobndot wrote:

This subject is new to me. I am missing something here ?
During cold weather, between 0-32F, it would be necessary to preheat a Lithium battery before my solar panel starts to charge it. Correct ?
Therefore, if I have my rv stored or parked in my driveway for days or weeks, I can't just forget about it like I do using my AGM batteries, correct ?
Using lithium's , I too was thinking about using an insulated battery box and install a heat pad in order for my solar to start charging it. Therefore, I really need to leave the rv plugged in to shore power in order to heat the pads.
The only real advantage for me to use lithium is for summer use when I could drop below 50% while boondocking and not worry about charging them back up on warm days.
If that's the case, using my AGM's in the winter and lithium's in the summer seems to be a better option . Either that or look into the Si02 batts as suggested. Am I correct on my thinking ?


Depends with battleborn you do nothing the bms decides if its gonna take a charge or not. If there is capacity left over from the night and you use something in the rv they will warm up on their own and start charging. lithiums generate heat charging and discharging.

for added protection heat pads make it easier and faster to start the charge process. As does throwing a temp sensor on a victron charge controller for an added layer of protection in the rare case the bms doesn't do its job.

During storage charge to 50% or more disconnect batteries and walk away nothing else to do. Better yet bring them home inside for the winter and add anderson connectors to make the process fast.

the heat pads hardly use any energy. add insulation even less.

The SIO2's dont look much better stat wise then a agm and way more expensive.

pianotuna

Regina, SK, Canada

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Posted: 09/29/20 12:58pm Link  |  Quote  |  Print  |  Notify Moderator

craz z wrote:


The SIO2's dont look much better stat wise then a agm and way more expensive.


Then find me a battery that can be charged at -40 and can also survive being discharged totally 620 times before it degrades to 80% of OEM capacity?

Cycle life cost is cheaper than AGM.

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