We upgraded to lithium batteries in our Wolf Pup travel trailer. We quadrupled our 12v battery capacity with this simple upgrade.
Timeusb batteries: https://amzn.to/3xxXGH0
The battery I used: https://amzn.to/3BrkdXa
Timeusb's website: https://www.timeusbpower.com/?ref=XCW...
Tongue boxes: https://amzn.to/3QWtTi1
Wire loom: https://amzn.to/3UfZDBL
Wire: https://amzn.to/3eRENZb
Battery terminals: https://amzn.to/3LlAX6K
Crimping tool: https://amzn.to/3dnedqo

How to upgrade your inverter:    • How to Upgrade A Converter Charger  ...  

Check out all the stuff we use around the shop on DoItYourselfDad here: http://amzn.to/2z8Yly0

Check out our other channels:
Budget Outdoor Adventures: Doing the outdoor stuff without breaking the bank:    / budgetoutdooradventures  
CarDIY, our car repair and Do It Yourself channel:    / @cardoityourself  
Check out my awesome daughter's kids cooking channel:    / @kayleyskitchen  

DoItYourselfDad on Facebook:   / diyourselfdad  
DoItYourselfDad on Instagram:   / diyourselfdad  

As an Amazon Associate, I earn from qualifying purchases. Clicking on the links above helps support the channel and helps us provide you with more quality content. We thank you for your support.