sky_free wrote:
billtex wrote:
Wet cell batteries can only withstand about a 25% discharge rate before risking permanent damage/loss of capacity. AGM batteries can easily withstand 50% discharge without damage, giving 2x useful power for like size batteries.
billtex wrote:
skyfree...not sure I understand your question...but at 60% discharge a wet cell (could be) damaged...and would certainly be at risk of losing capacity.
One of the main advantages of AGM's is they give you 2x useable power vs a wet cell.
No questions -- I was just diatribing my own thread, since I like to keep facts straight in this forum. No disrespect, but the information I dug up doesn't really match what you are saying. At a 40% Depth of Discharge, both are identical with a life of 1500 cycles. I think that level of discharge is normal for most users. At a 50% Depth of Discharge the AGM has an advantage of 1200 vs 1050 cycles, but as I said this is not really that significant since most people don't get a chance to cycle their batteries that much before they die of natural chemical processes which are present in both types. Neither is really "damaged" ... they just lose cycles.
The real plus is the zero maintenance and ability to keep AGM's in unvented spaces. No argument from me -- it's clearly advantage AGM -- at a higher price of course.
This thread has really gone off track though. In my original post I was asking what people are using in their AF TC's in regards to the battery tray since I was worried about the sturdiness of the tray and the size of batteries people are happy with. I mentioned that was looking at AGM's in that first post.
Yes...sorry to get off track...I'll close by saying even at 40% discharge the wet cell (could be) permanently damaged. That is the challenge with wet cells, they can't take a great % of discharge...and they require diligence at that.
Good luck with the AF...nice campers.