Can multiple AmpAura Purea 3 power stations be linked together in series?

Featuring an impressive 3.84 kWh battery capacity, the Purea 3 ensures
you never run out of power during your journey. Need more power? You
can add an expansion battery for an additional 3.84 kWh of capacity. So
add up to 9 expansion batteries and the Purea 3 delivers max 38.4 kWh of
capacity. Still need more? Pair 2 units of Purea 3 and up to 18 expansion
batteries to achieve 7200 w output and max 76.8 kWh capacity. it's time to
say goodbye to worries about power shortages and embrace the freedom
to explore without constraints.

Two AmpAura Purea 3 are connected via the Double Voltage Hub, then capacity and power are doubled

If one AmpAura Purea 3 is connected to one Purea 3 extended battery, up to nine Purea 3 extended batteries can be connected, doubling the capacity. Expandable capacity up to 7.68-38.4 kWh

However, if two AmpAura Purea 3's are connected via the Double Voltage Hub and two Purea's are each connected to 9 Purea 3 Extended Batteries, then both capacity and power are doubled. Expandable capacity up to 76.8 kWh