Week 49 2015 assumed from the photo I have 3 of these. Other two are 2017 and 2016 manufacturing dates Some marks from storage As well as replacing modules in a BMW pack could be used for solar storage as it's within the range of a lot of 48V inverters. Or electric bike or go kart projects as has decent discharge rates.

Brand: BMW
Type: Battery Module
Nominal Voltage: 50 V
Manufacturer Part Number: 6127 8610463
Reference OE/OEM Number: high voltage, pack, evolution, i3s, IB1, XB4, motorrad, ELECTRIC, CAR, BATTERIES, I8, LEAF, NISSAN, TESLA, MODEL, 34ah, HYBRID, 45EX