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Old 09-12-2014, 04:31 PM   #15
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Hes4all, perhaps I should have said" they don't Have any more amp- hours than a wet cell or have a life span any longer than a wet cell".
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Old 09-12-2014, 07:43 PM   #16
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Quote:
Originally Posted by TwelveVolt View Post

The ad starts with "Nothing short of incredible" and continues along that same thread. The science part is a bit weak. Do they hold and dispense a reserve of water?
They are designed to capture and return a large percentage of the condensate back to the battery versus evaporating to the air.

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Old 09-12-2014, 10:15 PM   #17
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Hes4all, perhaps I should have said" they don't Have any more amp- hours than a wet cell or have a life span any longer than a wet cell".

You are correct with the amp hours. Amp hours are amp hours!

And for your experience with AGM's, I would say yes for the life span.
But for me, they have lasted longer than any wet cell that I have ever had.

And the recharge time is quicker so I don't have to run the geni much. But I do know that that depends on you charger. With my three stage I leave the charge at 100%.

My coach had the AGM's when I bought it so I can't say at that time if I would go with them. But with my experience with them now and with what my friends go through that vacation with me, I can say that I would buy them now.

Just personal preference now!
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Old 09-12-2014, 10:44 PM   #18
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It seems to me the only ones who get any real value out of AGM or Gel cell batteries is the guys who will not maintain a battery. Anyone willing to schedule a hour or 2 a month to take care of their coach will save money and have much better luck with quality wet cell batteries. One thing I can tell you is when you pull your coach in my bay I can tell what stuff you take care of and what you ignore. When the latches are rusted shut on your gen door I can be pretty sure you don't maintain it very well. The same can be said for your battery compartment, filthy covered with sulfur and all the cables corroded likely means you really thought maintenance free was really that. The opposite is when I open one and the batteries are clean the cables are in good shape and they look like new even though they are 4 years old.
The other thing I have seen in 15 plus years is the guys that constantly complain about junk batteries are the ones who do the least to maintain them. As stated above there are some really good applications for each type of battery but the maintenance free idea is not one of them even AGM batteries like some care.
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Old 09-12-2014, 11:14 PM   #19
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New owner getting ready to replace 5 yr old 6v batteries. What makes the sealed glass mat batteries worth twice the money?

Longer life or just easier to take care of?

Thanks in advance for your insight.
If you go with AGM make sure your converter or inverter charger is capable of being set to properly charge them. The wrong charger or settings will ruin your new batteries.

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Old 09-13-2014, 12:08 AM   #20
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New owner getting ready to replace 5 yr old 6v batteries. What makes the sealed glass mat batteries worth twice the money?

Longer life or just easier to take care of?

Thanks in advance for your insight.
Go here and see what Lifeline says Lifeline Batteries - Marine & RV Deep Cycle Batteries

And as mentioned above, every battery needs maintaining.
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Old 09-13-2014, 05:43 PM   #21
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Old 09-13-2014, 08:23 PM   #22
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Trojan's thick plate true deep cycle batteries such as the T105 is rated at 1200 life cycles. Their thin plate batteries are rate at 600 life cycles. Life Line says their's are rated at almost 1000 life cycles. Of course unless any battery is not maintained properly or discharged more then 50% depth of charge regularly any battery will die prematurely.

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