Some unsolicited advice from your not so local e-bike tech...

Consider getting yourself some nicer brakes on that beast for those hills. Amazon ebikes typically come pretty under-equipped in that department, especially with the fat tire bikes and their weight.. for the past few years now, I can't tell you how many of those types of bikes come in our shop with failed brakes. If/when they go (hopefully not while you're riding down a hill like that one), name brand brakes like tektro (e350s at the least), magura(mte4's or greater), and shimano are a safe bet. Might want to consider a four piston brake if you regularly ride hills.

Also, I'd make sure that battery is UL listed. Otherwise, keep the battery out of your house.. Another treat from the more "economical" brands available on Amazon is selling fire hazards with no BMS.