Does any of that matter? The battery shows 52v across the terminals after the charger turns off, and the BBSHD display also says 52v. That's been the case from the first time it was plugged in. For the record though, I'm 80 kg and riding "hilly city" type conditions, think San Francisco.
Like the title says, I bought the cheapest 48V 10+ Ah battery for e-bikes that wasn't obviously a scam - more specifically this one: https://www.aliexpress.com/item/Free-customs-duty-48V-13Ah-lithium-ion-bottle-water-kettle-battery-ebike-battery-For-Bafang-BBS02/32680168866.html . I was fully...