It comes with a 48v 17.5AH battery and I've ordered a second 52v 17.5AH, so I'm not totally concerned about range, but I do plan on doing a few tests to see where my comfort levels with the batteries are.
Bringing tools to tighten things is a really good idea, having something pertinent shake loose would really suck, especially if all it takes is a quick tighten to ride a lot safer. But man, you are making me want to hide under a blanket after listening to the problems you've had. I do NOT want to be pushing a bike loaded with groceries home, and being able to make quick grocery runs is one of the reasons I've bought this bike! Can I ask what you use when you haul groceries? I've got some panniers on order and I figure the trailer could be used for bigger hauls, but I'm always interested to know what others use.
I carry the groceries mostly in the panniers on the bike in my avetar. Sometimes I blow the cube limit & tie the bread on top. It is a stretch cargo frame, so my weight goes on the front, cargo weight goes on the back. I've carried A/C's, night stands & bookshelf kits, power wheels & a spare bicycle back there. Ag chemicals in 2.5 gal bottles & 5 gal of diesel fuel at a time. A pickup tire. String is my friend.
I have one 48 v 17.5 ah battery and cross 30 miles & >80 hills with it. The ebikeling motor it would red light on the last couple of hills, sometimes cut out. This Mac12t motor I have now I start @ 53v and get there at 45 or 46. Downhill run uses less watthours of course. I'd like to ride to concerts & festivals 50 miles away, but my hips hurt too much after 3 hours. So I need a better seat more than a second battery.
If that foldup tire is not a big scam, it would fit in the pannier and only weigh 3 more pounds. The schwinn foldup tires were trash, would fall off the rim and blow the tube out. That would cover one of the big push home sources. The shimano 7 speed rear, I'll have to look up the biktrix classic duo to see if you have one. If you do, it is trash. Dropped balls & stranded me. There is a replacement axle with a machined on race that won't back off available, We The People, but it is never in stock at modernbike or thebikeshopstore. My 8 speed shimano axle has not been a problem in 6500 miles.
Pushing the bike, I've got to stay in shape. I do 5 lb pilates weight lifts besides bike riding, because muscle all melts away past age 60 if you don't exercise it regularly. I'm 70. The time I pushed 7 miles with 60 lb groceries, I waved a $50 bill at about 25 pickup trucks blasting past me. There is no help out there for bicyclers in dually dieselland. The maps are **** too out in the country, I don't think a tow truck could find me if I did push onto the cell phone grid.
My heart "has nothing wrong with it" the cardiologist said, when he charged medicare $5000 to allow me to have shoulder surgery. So with enough water, I can walk in from anywhere I guess. Wear good shoes and take a way to lock your bike up to a power pole or metal post. I wouldn't worry much about the trailer except at stores or in town where it is fenceable.
Edit the biktrix juggernaught classic has shimano 7 speed rear. don't ride it further than 1000 miles IMHO. Piece of ****.
Happy trails, as RR used to sing.