12 Volt Blog
Guides, reviews, and tips for RV, marine, and off-grid 12V power systems.
Best LiFePO4 Batteries for RVs in 2026
We compare the top LiFePO4 batteries for RV use in 2026. Find out which lithium battery is the best fit for your rig and budget.
April 10, 2026
How to Size Your 12V Battery Bank
Learn how to calculate the right battery bank size for your RV, boat, or off-grid setup. Step-by-step guide with real examples.
April 8, 2026
AGM vs Lithium Batteries: Which Is Right for Your RV?
AGM or lithium for your RV? We break down cost, weight, lifespan, and performance to help you decide which battery type is the right choice.
April 5, 2026
Beginner's Guide to RV Solar
Everything you need to know to get started with RV solar. Panels, charge controllers, wiring, and sizing — explained simply.
April 1, 2026
Best Battery Monitors for RVs and Boats in 2026
Compare the best battery monitors for RVs and boats. From Bluetooth smart shunts to budget LCD displays — find the right monitor for your setup.
March 28, 2026