Battery Size (replacing)
I need to replace my RV battery. It is a 24DC model. I know that does not mean 24 volts DC. I see a 24DC battery I can get but there is also a 27DC that has more MCA (not sure what that means but I a...
Forum Discussion
Veebyes wrote:
There are plenty of good reasons to go to an AGM. The double to triple the service life is only one of them. My first AGM gave me nine years.
In storage the AGM loses very little. My AGM sits, disconnected and untended, November to April and retains enough power to operate landing legs upon reconnection.
Zero maintenance other than annual terminals cleaning.
Yes they cost more. Much more. Given what they are over the 100 plus year old technology of the wet cell the AGM is worth it.
There's a reason why they are used in aviation and marine applications.
The reason they are used in marine, and aviation was they don't spill when the boat rocks or the planes bank. Also, before I retired from the Navy in 2009 we converted a lot of our stuff to Lithium batteries to improve reliability, capacity, and lifespan.
They do last longer compared to a normal starting battery but not when compared to a GC2 so let's throw out some context. The only reason to buy an AGM in an RV, in my opinion, is if you don't want to do maintenance on the batteries as they do protect themselves from low water levels better. To me it just doesn't make sense to get AGM for a RV application as here, the price is double for an equivalent battery.
