I ordered a cheaper battery last night from Ebay, and a cable to connect it to the scope. Not sure how long this battery might last, but it was cheap so if it doesn't last long then I won't be out much money. I saw it on YouTube where a guy was using it but he didn't say how long it will power the scope. There are more powerful batteries available and with a higher price tag but will give this one a try first. If it will power the scope for a few hours then I will purchase a backup battery or two and hopefully would be able to hunt for a reasonable amount of time.
Also, there is a focus knob available on Ebay that should make turning it much easier. I haven't ordered it yet but plan to.
Thanks for the info about the cap.
