Emergency Power Supply Unit

[Danial9874]

Hi guys,
I know that airbus have emergency power supply units (EPSU) to supply the emergency light system of aircraft incase if aircraft power supply breakdown but I am wondering if boeing have EPSU also ?

Thank you,
Dan

[NutLoose]

Try reading

https://www.aviationmatters.co/aircraft-ram-air-turbine-rat/

[QA1]

Yes, Boeings have to meet similar requirements to Airbus in the event of power failure, so they also have battery packs with chargers.