Battery Size When Replacing RV Deep Cycle with Lithium

Updated 09/12/2025 | Published 08/28/2025

Question:

Hi. I am lookin at replacing my rv deep cycle batteries with lithium batteries. How do I figure out what I need? Any conversation?

asked by: Chris S

Expert Reply:

Hey Chris, a good place to start with would be what is the amp rating of the current battery you have and then decide if that was adequate or not and go with a similar or higher rated lithium battery.

The Rich Solar Alpha part # RS74VR that you referenced is a 100 amp hour battery. I attached a link to all of the lithium batteries we carry as well.

expert reply by: Jameson C

Jameson C.

9/12/2025

Hey Chris, did you find out the amp rating of your current battery and decide on a lithium battery that suits your needs? I'm here to help if you need more assistance with your battery replacement.