Hello Dave Newbie Smith,
Lots and lots of people love astronomy, but only a small percentage of them take it to the next level and purchase aTelescope. So you are now in an Elite group of people who want to discover the cosmos and see it for themselves.
This hobby requires that you progress your knowledge, you have to learn certain things before you can move on to bigger and better equipment all the while chasing the wow factor For a first Telescope, the 4SE is a good choice because the nexstar SE series is fairly easy to learn and those scopes are very accurate My buddies George and Ron both have 8SE scopes (along with other scopes LOL) and they love them.
Youre six amp hour battery is fine, better than using a bunch of D cell batteries, but if you stick with this you’ll want a bigger battery, something along 12 or 14 AH.
This zoom lens is fun, I recommend that you use it to figure out at what power of magnification you enjoy the most, and purchase an Eyepiece, with a field of view somewhere around 68 to 82° is preferred. Eyepieces are brighter than zoom lenses for some reason, and more brightness equals better seeing.
Once you master the set up and can sleuth to any object you desire, then you’ll find out that you want more aperture, to help you see more of these faint distant objects, if you have trouble getting started post another rip reply asking for help but I’m sure some of us will jump right in Dave!