What Size Lithium Battery Is Best for Your RV?
How Much Do Lithium RV Batteries Cost? The average cost of a deep-cycle lead-acid RV battery is $125, whereas a lithium RV battery can start at around $400 and go up to well over $2,000. The initial cost of a lithium battery can seem like a daunting hurdle to jump, especially if you''re already on a tight budget. However, because of the price ...