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Old 03-25-2015, 04:02 PM   #11
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6 Volt batteries.. the plates are thicker so you get more power out of them and longer life (with reasonable care)
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Old 03-25-2015, 04:08 PM   #12
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Good info here : Factory RV 12V Installations and Boondocking Part 2 ‚ÄĒ Kiss My Grits
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Old 03-25-2015, 04:33 PM   #13
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Here's another Lithium-Ion battery.

https://store.starkpower.com/12V-125...tery_p_65.html

Ken
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Old 03-25-2015, 05:12 PM   #14
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My .02, dual 6 Volt batteries are superior but if for some reason you have another one of them go TU you now have no power to the trailer at all since you only be at 6v. I prefer to use dual 12v deep cycle batteries and know that if one of them fails I will still have power. My longest dry camping every year is elk hunting for 12 days. I bring my 2,000w generator and run it for about 1hr each night while I am eating dinner. I've never had a problem with my batteries running low doing this. BUT: I also have the following mods:

1) Progressive Dynamics PD4545 converter
2) 2ga wire ran from the converter directly to my batteries.
3) LED lighting throughout

I plan to do the same converter/battery setup with my new trailer that is on order.
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Old 03-25-2015, 05:16 PM   #15
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I cant believe the price of those lithium batteries. Jeez. I thought my honda eu3000 was pricey. But then again no gen. is as quiet as a battery. Whats the life span of those batteries?
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Old 03-25-2015, 06:48 PM   #16
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Depending on quality and care, they can be recharged 500 to 1000 times. Also, they are cold sensitive, so if temps are below 0F should be removed and brought inside, or they get ruined. AND they have to be partially discharged to a storage level if they are not going to be used for weeks or months, or they get ruined. AND did we mentioned that they need special charging equipment, or they get ruined (or worse)? AND they are much, much more prone to catching fire than the familiar types of batteries - to the point where there are a variety of bans on shipping them in airplanes being considered or are in effect!
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Old 03-25-2015, 10:29 PM   #17
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According to the comparison chart in the URL I posted, Lithium batteries are far superior to lead acid batteries including temperature range, self-discharge rate, & no explosive gases. It also states that they are a direct drop-in replacement for an OEM battery. I know there are special converter/chargers for them but it appears they can be charged with a standard charger or generator.

I'm not advocating for Lithium batteries, just trying to present the facts as stated by the manufacturer.
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Old 03-26-2015, 06:50 AM   #18
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Lithium differences

Lithium batteries are a whole different animal. The cells of a regular flooded battery are 2.1 volts each, the cells of a Lithium battery are about 3.525 volts each. You can use some chargers, but it needs to have its settings altered to adjust for the different characteristics of the Lithium battery.

On the interesting side, Lithium batteries operate best in a charge range of 90% SOC and down to 10% SOC. Operating in that range increases cycle life about 50% or 2000 up to 3000 cycles.

They require a special battery management system and using a regular battery charge controller you could fry your battery on the first couple charges. That would be a VERY EXPENSIVE choice.

It will be a while before I can afford those babies.

Just my thoughts,
Don
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Old 03-26-2015, 08:10 AM   #19
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Unless you are anticipating an extreme off grid setup for an extended time, the cost of Lit batteries would be hard to justify. The rest of all this is pretty much "established science". Want more Ah's than the OEM battery, get a true deep cycle 12v. Want more then go with dual batteries. 2 6v's will trump 2 12v's any day of the week.

Moving on to next thread!
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Old 03-26-2015, 11:32 AM   #20
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Quote:
Originally Posted by Bassdogs View Post
Unless you are anticipating an extreme off grid setup for an extended time, the cost of Lit batteries would be hard to justify. The rest of all this is pretty much "established science". Want more Ah's than the OEM battery, get a true deep cycle 12v. Want more then go with dual batteries. 2 6v's will trump 2 12v's any day of the week.

Moving on to next thread!
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