I managed to score a closed box GoTrax Transit for half the retail price so I’m wondering what else I should get for it.
What’s a good bike lock so I don’t have to worry about it getting stolen? Are those U locks still easily pickable with a pen? Any cheap options out there for a rear rack and saddle bags? Lights? idk, what do I need so that I can keep it maintained? I’m on a tight budget so I’m looking for the best deals that I can get by with. I want to be able to use it get groceries and run local errands.
Also, do you take your batteries inside stores with you? I saw a lot of bikes on facebook marketplace with their batteries missing because they were supposedly stolen. Makes me think I should make a custom bag for it so I can carry mine around.
I do wish I had gotten one earlier, it’s a lot of fun. A little too much fun. I worry this is going to unlock a yearning for a motorcycle. 
aliexpress has all your bike needs, get a back rack and add a pannier bag. I can haul a lot of groceries with this combo. All bike locks can be broken with a cordless angle grinder, best protection is to know the area you’re locking your bike. If the area has few people around, it’s perfect opportunity for a bike thief.