Is there anything that can be done to outdoor solar lanterns that will make them more weatherproof and thus last longer?

I bought some outdoor decorations that have little solar lanterns on them. I know from previous experience that the little solar lights don’t last long, maybe a year or two if you’re lucky.

These things are made cheaply, and they’re out in the cold, the hot sun, the pouring rain, I get it. I am just wondering if there’s something I can do to the light itself to make it more durable, before I put them outdoors.