No, they are not solid rubber tires. The tire is made out of a soft plastic, called EVA (Ethylene-Vinyl Acetate).
The upper handle of the cart is ‘locked’ into place with the lower cart just above the upper bag strap. It’s the same plastic piece that adjusts the angle/position of the handle. Slide this plastic piece back up the shaft (toward the ball holders), and the upper handle will release & fold down. The 2 side wheels also fold in at the same time.
The battery is included in the package. It is so called CR2 Lithium battery.
The only difference is the scorecard holder between the two versions. Please refer to the photos of the respective models
Please refer to the “Video for CaddyLite EZ” in the “SUPPORT” section of this website.