Dec-09-2013 08:39 AM
Dec-12-2013 05:33 AM
full_mosey wrote:BillMFl wrote:
Sealed batteries don't have to be AGMs. I use sealed marine deep cycles in both my Class A and my Class B. But for sure sealed batteries are best for confined spaces with poor ventilation.
I thought those wet sealed were starting batteries. Do you have a link to those batteries so I can review the specs? My details are in my profile.
The AGMs are hybrids with both starting and deep cycle service specs.
I used an inverter to run a 900W electric 120V kettle with my 79AH AGM for 7 min to boil a quart of water. Would an equivalent AH wet sealed do that without exploding?
HTH;
John
Dec-11-2013 07:43 PM
Dec-11-2013 07:37 PM
BillMFl wrote:
Sealed batteries don't have to be AGMs. I use sealed marine deep cycles in both my Class A and my Class B. But for sure sealed batteries are best for confined spaces with poor ventilation.
Dec-11-2013 04:14 PM
full_mosey wrote:
AGM batteries were a godsend for me. In my case, the AGMs made my system possible.
I have living space issues because there is not enough outside space for the AHs I need.
There are no batteries on the tongue. I use that space for other cargo.
The AGMs are inside the van and under the bed/dinette in the TT. Some have suggested that they could have been wets if I bought a sealed container and then drilled holes for vents in the van and TT. That only makes maintenance more difficult and dangerous. Nogo for me as I put the AGMs in somewhat inaccessible locations where an acid spill could occur during water maintenance. There goes any cost savings.
I also believe I need fewer AHs than wets would have required. That saves space and $.
HTH;
John
Dec-11-2013 10:14 AM
Dec-11-2013 05:34 AM
wa8yxm wrote:harold1946 wrote:
There are Marine deep cycle batteries and there are marine deep cycle/starting batteries. Two different applications.
Have never seen a true Deep Cycle battery with the word MARINE printed on it... Though I can see where there would be an advantage to DEEP CYCLE for many functions on the water.
I have seen true DEEP CYCLE 12 volt batteries in assorted sizes from around Group 27 up to you can't pick it up without a forklift.. But then it also POWERED said forklift.
All the Marine/Deep cycle (usually labeled exactly as I typed it with the slash) are starting batteries which can be SLIGHTLY discharged beyond what you would do with a common car battery.
The other claim I often see that I dispute is the claim of longer life for AGM's.
When I bought this MH, It came with a pair of GC-2 Flooded wet cells, I will be replacing them soon.
The following January I added a pair of AGM's. Replaced them 2 years ago.
I also slepped in some Maintenance Free Marine/Deep cycle types I had lying about, these are OLDER than the GC-2. Those I replaced over teh course of this last summer (2013) The last one last month
So the Maintenance free roughly lasted as long as the GC-2, but both of them long outlasted the far more expensive AGMs.
Dec-11-2013 02:47 AM
Diplomat Don wrote:
Okay...I'll be more exact.....your converter converts 110v power to 12 volt, but uses the batteries as a cushion for even battery power and operation. No matter how you look at it, you need to have a good set of batteries!
Dec-10-2013 08:31 PM
chucl66 wrote:
Will an 12 volt, AGM work, with the progressive dynamics, PD9260C, converter/charger, with built in charge guard.
Chuck
Dec-10-2013 08:17 PM
Dec-10-2013 02:27 PM
Diplomat Don wrote:
Chuck...good for you on replacing the batteries with the Interstates. People seem to forget that even if you're not dry camping, all of your 12 volt powered items run through your batteries first, plugged into shore power or not.
The batteries are the heartbeat of the coach. The people that put in cheap batteries to save a few dollars are always the ones that can't figure out why they're having electrical issues later on.
Would you put a Kirkland battery in your pacemaker?
Dec-10-2013 01:42 PM
harold1946 wrote:
There are Marine deep cycle batteries and there are marine deep cycle/starting batteries. Two different applications.
Dec-10-2013 12:12 PM
Dec-10-2013 09:05 AM
Dec-10-2013 06:28 AM
wa8yxm wrote:
Pros and cons of Sealed Valve Regulated Lead Acid over Flooded wet cell.
Pro: Little maintenance (They say Maintenance free but they still need some terminal cleaning every few years).
Cons: First, most MF batteries sold for RV use are Maine/Deep cycle, Marine/Deep cycle are NOT deep cycle, they are starting batteries, though they can safely go slightly deeper into discharge than a automotive starting battery. but 50 percent is a seriously deep discharge for them, it is the recommended minimum charge on the flooded wet cell GC-2 Deep cycle.
Cons: Higher cost
Cons: Lower overall life in many cases.
So for the best "Bang for your buck" GC-2's from Sam's Club may be the best buy.