Aldi battery e-bike

Contemporary electric bicycles use 36V or 48V lithium batteries. With power of 200W-250W it means somewhere around 5A current. (200W/40V=5A) That can be easily handled by an Aldi Xfinity 4Ah battery pack, depending on your voltage and power requirements. 4Ah here means it will provide current for almost an hour (4/5 of 1h = 48minutes of ride). To achieve 36V nominal voltage, 2 IDENTICAL packs been used in series.
-o-----(-)pack1(+)---(-)pack2(+)----o+
2 Aldi packs are enough to provide me ene