Good question, and it's one of the more interesting splits in the 2026 Amflow lineup.
The PX uses the new FP700 integrated battery at 700Wh with a claimed energy density of 220Wh/kg. The higher density cells are what allow the M2S motor to sustain its full 1,300W continuous output without the battery becoming the bottleneck. It's a non-removable unit, fast charges via the 12A/508W charger (0-80% in 76 minutes), and is rated IP56.
The PR takes a different approach entirely: it uses removable batteries for the first time in Amflow's history. The PR Carbon gets the RS800 at 800Wh (200Wh/kg, 4kg), and there's also an RS600 at 600Wh as a second option. These are quick-release designs, and the RS800 is claimed to deliver around 158km of range. The trade-off is slightly lower energy density compared to the FP700's newer cells.
So in short: PX prioritises power delivery and charge speed with denser, faster cells. PR prioritises flexibility and outright capacity with swappable packs. The PR is also the first Amflow where battery removal doesn't require dropping the motor, which was a notable gripe with the PL.