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Open Roads Forum  >  Tech Issues

 > Camping 3 months with single 100Ah Lithium

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jaycocreek

Idaho

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Posted: 11/02/21 06:24am Link  |  Quote  |  Print  |  Notify Moderator

Oh and those that are worried about cost of lithium,Amazon has a 100ah lifepo4 battery for $299 right now..It would be hard to match that in amp hours with a lead acid battery or batteries and especially in a truck camper..


475 ah LFP/600 watts solar

StirCrazy

Kamloops, BC, Canada

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Posted: 11/02/21 08:07am Link  |  Quote  |  Print  |  Notify Moderator

jaycocreek wrote:

Oh and those that are worried about cost of lithium,Amazon has a 100ah lifepo4 battery for $299 right now..It would be hard to match that in amp hours with a lead acid battery or batteries and especially in a truck camper..


yup LFP batteries are on par with AGM here now for buying a premade solution. if you can do it your self then way cheeper.

Steve


2014 F350 6.7 Platinum
2016 Cougar 330RBK
1991 Slumberqueen WS100

Kayteg1

California > Nevada

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Posted: 11/02/21 12:52pm Link  |  Quote  |  Print  |  Notify Moderator

I just bought 100 amp-hr battery for my boat for $65 at Costco.
Just saying.





pianotuna

Regina, SK, Canada

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Posted: 11/02/21 03:51pm Link  |  Quote  |  Print  |  Notify Moderator

jaycocreek wrote:

What a couple people are missing is this is the truck camper forum where weight and space come at a price..Some truck campers only have room for one battery like mine...I have room for one group 27 battery at 64# and 50 usable amp hours..Should I replace that with my 120ah lithium battery, I would gain 70 amp hours and lose 35# in weight plus be able to charge it 100% in 4-5 hrs via 20 amp charger or to 70-80% without any harm time after time..

One 100ah lifepo4 battery in a truck camper, as Ralph posted, does the job of two group 27 AGM batteries and is over 100# lighter with 8-10X the cycle life..

Ralph did good for those that understand..


So get an SiO2 and not bother with all the hoops for Li.


Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

jaycocreek

Idaho

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Posted: 11/02/21 04:02pm Link  |  Quote  |  Print  |  Notify Moderator

I actually thought and looked at the Sio2 batteries/2-6 volt and stuffing the wheel wells with batteries..All good choices for some, but the way I camp out in the boonies, the lithium and it's charge parameters and weight won out..Being able to charge up so quickly and or just partial charges matters to me....

Solar is another story...lol..Haven't figured that out quite yet and how it fits my style and places..[emoticon]

Kayteg1

California > Nevada

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Posted: 11/02/21 04:50pm Link  |  Quote  |  Print  |  Notify Moderator

I have to use shore, or generator, since 90% + of my camping require AC, so I am not jumping on solar wagon.
However doing Sprinter conversion I installed single solar panel, just to go with common trend. That proved to be valuable when fuel pump on my van went bad and I had to crank the engine several times for testing and then spend over 1 hr on the cellphone. The 75W solar panel help me with keeping the batteries at certain level, what helped a lot.
Still dealer's mechanic crank it without connecting charger and fried $1000 ignition module for starters.

pianotuna

Regina, SK, Canada

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Posted: 11/02/21 06:22pm Link  |  Quote  |  Print  |  Notify Moderator

jaycocreek wrote:

I actually thought and looked at the Sio2 batteries/2-6 volt and stuffing the wheel wells with batteries..All good choices for some, but the way I camp out in the boonies, the lithium and it's charge parameters and weight won out..Being able to charge up so quickly and or just partial charges matters to me....


SiO2 allows partial charges. So there is no need to stuff the wheel wells with batteries, from a capacity point of view.

StirCrazy

Kamloops, BC, Canada

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Posted: 11/03/21 09:41pm Link  |  Quote  |  Print  |  Notify Moderator

pianotuna wrote:

jaycocreek wrote:

I actually thought and looked at the Sio2 batteries/2-6 volt and stuffing the wheel wells with batteries..All good choices for some, but the way I camp out in the boonies, the lithium and it's charge parameters and weight won out..Being able to charge up so quickly and or just partial charges matters to me....


SiO2 allows partial charges. So there is no need to stuff the wheel wells with batteries, from a capacity point of view.


it would still be a lot more weight, and you would require two to get the longjevity that a LFP will give you. while you can discharge a SIO2 to 100% a fair amout of time it is still recomended to stay above 50% to get the max life which is still less cycles than a LFP gives you doing 100% discharges constantly. unless your frequently camping in -0c or below I just couldnt justify the extra weight, reduced capacity when cold and more expensive cost. sio2 are now the most expensive option available to us now. I was looking at them again wondering if the price has dropped to a reasonable level for the 5th wheel, but for the camper I wouldn't even concider them because of the size and weight constraints.

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