AGM and golf carts vs. Lithium Battery Test

Tom_M wrote:

TurnThePage wrote:
No doubt they are expensive, but somebody pointed out how you won't get your money's worth out of them unless you keep your RV for a long time. I submit that if you are one to buy and sell your RV every few years, you're losing more than the cost of Battleborn batteries every time you replace your RV.

You could always swap batteries when you buy a new RV.

Absolutely. I'm the type that hangs on to vehicles and RVs for a long time so it's no skin off my back. Somebody mentioned how it's a waste of money because they won't keep the RV long enough to recoup the cost. I was simply pointing out that rolling over to new RVs every 5 years is already a losing proposition.

TurnThePage wrote:
No doubt they are expensive, but somebody pointed out how you won't get your money's worth out of them unless you keep your RV for a long time. I submit that if you are one to buy and sell your RV every few years, you're losing more than the cost of Battleborn batteries every time you replace your RV.

You could always swap batteries when you buy a new RV.

pnichols wrote:
Of course ... you know that AGM batteries in 6V golf cart sizes for true deep cycle use are available? These 6V type/size AGM batteries definitely are not intended for vehicle starting.

The 12V AGM batteries in our MH ...

Trojan make 6V and 12V golf cart batteries in AGM, T105-AGM and T1275-AGM. Expensive and not easy to locate.

Greening in the hard curing of new paste on plates. It is done with plate saturation with H2SO4 and electricity applied in a non linear curve. After which the cells are filled with electrolyte but no more charge. This is where a top charge pays off before putting the cells to work.

No battery "test" is worth ten cents unless it is performed to BCI specs then analyzed on a documented white paper. Reams of mumbo jumbo make good fire starting wads.

Use your noodle people! 6,000 days is how many years? It is the VIABILITY of accelerated testing that separates the legitimate testers from the knotheads.

No lead acid battery with plates .040" - .060" can be considered a recyclable accumulator. As far as I am aware of only the Concorde (Lifeline) battery with .105" plates is eligible to be monikered a cycleable AGM.
The subject of ease of recovery of any mistreated battery was never covered.
I made my living doing accelerated life cycle testing of pallets of batteries from UL size to L-16.
Test results had to be given in a white paper format.
Ron Popiel presentations were rejected out of hand. If adjusted charging and discharging (amp hours format) were not used the "tests" were considered garbage. Laughed at by battery design engineers and manufacturers.
If a test organism could not autopsy or build a valid battery they are a fraud

Totally unfair. They knew.

agesilaus wrote:
MIGO TMI..heh. He packs so much tech data in so fast it's impossible to evaluate. And I am a tech tho not of the electrical variety. One thing I fished out of the flood was that the cheap 6V golf cart batteries were the most cost efficient. Strange that he didn't include Trojans or another high quality brand into the test. He then launches into the life cycle cost analysis. That's where I gave up. I have to admit that I have suspicions that this fellow is in the pocket of Battleborn. The info about 6V batteries was inserted in a very fleeting manner, almost as if he was hiding it.
As for life cycle I will admit that if you keep your RV for 20 years or so then yes, Lithiums may pay for themselves. But most of us will not. And even if you have to replace your 6V battery pack once or twice over your time in the RV the costs will never approach the $4000 LiB battery pack price.
I have never been a fan of AGM, they are designed to start a vehicle not store energy. Golf cart batteries are designed to store power and so are the LiB.
So I'll stick with 6V unless the price of LiB plummets. Something I doubt will happen because of the scarcity of lithium.

Of course ... you know that AGM batteries in 6V golf cart sizes for true deep cycle use are available? These 6V type/size AGM batteries definitely are not intended for vehicle starting.

The 12V AGM batteries in our MH also have nothing to do with vehicle starting - they are labeled and specified to be specifically intended for deep cycle applications. They also charge fast because of their low internal resistance.

FWIW, lithium batteries are noted for holding a higher terminal voltage right down to their total discharge point. This is not always a good thing, as this can be a problem for knowing how much charge they have left because it's more complicated to tell when they're getting low - unless they're monitored with equipment that keeps track of current consumed versus time while in use. i.e. For the AGM batteries in our MH, I just check their terminal voltage with a simple, inexpensive digital voltmeter in order to tell how low in charge they are.

pianotuna wrote:
They did not "green" the lead acid jars. The Mortons do accept gifts.

Is this English?

/

No doubt they are expensive, but somebody pointed out how you won't get your money's worth out of them unless you keep your RV for a long time. I submit that if you are one to buy and sell your RV every few years, you're losing more than the cost of Battleborn batteries every time you replace your RV.

FWC wrote:
Assuming you are cycling your battery hard every day (365 cycles) then there is really not much advantage to a battery that provides more than 2-3000 cycles, as calendar aging will kill it long before cycle aging. For most of us here that may only deeply cycle our batteries 50 - 100 times a year, then 1000 - 2000 cycle is plenty.

Exactly my point. If your battery makes it for 6 years and you cycle them 100 times a year that's only 600 cycles. The potential to get 5000 or 10000 cycles is meaningless in RV terms.