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Author: Subject: Car freezer/refrig
PaulW
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[*] posted on 7-6-2021 at 07:35 PM


The ArcPac comes with a charging device, but for that device needs external power, and charging time depends on that source. A source like 110v would be faster than solar or the alternator on your rig.
Fact: ArcPac's do not come with a battery.
Fact: All frigs work with any 12v battery. (And also on 110v).
For a frig you do not need an ArcPac. All you need is a 12v battery or a 110v receptacle at your house. The extras that ArcPac provides have nothing to do with powering a refrigerator.

Anyway if you run down a battery to 40% is must be charged back to 100% so the discharge can begin again for your next trip or more days on a trip.
When I am home I use a 110v trickle charger ($ 25) to recharge my frig battery. When I travel I recharge it from the car I drive.

Battery I use is a Group 65 start battery that delivers 71AH @ 7amp.
Better choice would be a Group 31 deep cycle battery that has 200AH
These two batteries are lead acid, heavy, and cost $300-350
Lion batteries cost more for the same AH and weigh less than a comparable lead acid battery. The Lion batteries are considered luxury - way more than needed for the average cost limited person.
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Hook
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[*] posted on 7-7-2021 at 08:13 AM


Who makes a Group 31 lead acid battery that has 200ah? I have never seen one. The most I've seen is about 120ah.

I think the price justification for the LI ion batts, outside of weight consideration, is that you can draw them farther down than around 40-50% of capacity, without doing them harm. What good is a 120ah battery if you shouldnt take more than 60ah out of it?

People who buy grp 31 batteries are people who dont have the space to do 2-6v batteries. I am in that category, with my older truck camper. A grp 31 is the max I can go.



[Edited on 7-7-2021 by Hook]
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PaulW
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[*] posted on 7-7-2021 at 09:52 AM


My edit Group 31 should have said 105 not 200

Cost examples:
Lion 100AH, 27 lbs $925
AGM lead acid 105AH 64 Lbs $370
AGM led acid 210AH, 124 Lbs $649

Give us the numbers for 2-6v batts.
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Chup
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[*] posted on 7-7-2021 at 03:52 PM


Quote: Originally posted by PaulW  
My edit Group 31 should have said 105 not 200

Cost examples:
Lion 100AH, 27 lbs $925
AGM lead acid 105AH 64 Lbs $370
AGM led acid 210AH, 124 Lbs $649

Give us the numbers for 2-6v batts.


The AGM prices seem high to me. Are those Baja prices?

I'm seeing Renogy deep cycle agm 200AH for $399 online in the states.

Same for Renogy Lion 100AH - for $799.
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PaulW
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[*] posted on 7-7-2021 at 06:22 PM


Random selection off Google looking at US made top brands like Concorde, etc. My result is higher prices

You did a better search and got better prices.
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