Recommendation: Next time you need to get a simple water filter ( non battery operated one) look into getting a Sawyer mini. Lasts a long time and is used by everyone. Long distance hikers and folks like you. I have one and 2 lifestraws as part of my kit. BTW in case you did not know, My Dad travels around the country in a mini bus he converted. Full time. He's voluntarily homeless. I call him free. Here's a video I made about him switching from his DIY truck camper to the mini bus:

Great video!