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
Grit dog wrote:RLS7201 wrote:
Marine/RV batteries are compromise batteries. They were developed for marine trolling and engine start. They do not excel at either.
For you application a standard lead cell starting battery is your bet choice.
Richard
You’re right about the first part, sort of. They’re actually just fine for starting and will take the short term high amp loads just fine but they’re a compromise for deep cycle/ house battery use like trolling motors and campers because they have more/thinner plates to accommodate the high amp loads.
Second part you’re completely off/backwards. A dedicated starting battery while it will do the same job as a deep cycle, it won’t do it near as long before it’s worn out. That’s why true deep cycles aren’t suitable for high amp starting loads. They have thicker plates that last longer under discharge conditions that a good operating starting / charging system keeps from happening.
It is my understanding that the OP was looking for a starting battery. Which makes my comments correct.
Richard
