FLIRT Akku 2-car unit for NAH.SH
The FLIRT Akku is the battery-operated version of the FLIRT series. The local transport authority in Schleswig-Holstein (NAH.SH) ordered 55 two-part FLIRT Akku units in July 2019 as part of an innovation partnership. The battery-operated multiple units are used on the Northern and Eastern networks since October 2023.

Designed for non-electrified or partially-electrified routes, the FLIRT Akku is highly versatile. The batteries can be charged during operation via the catenary and also at electrified terminal stations. In addition, the braking energy can be stored in the batteries, allowing the vehicle to be used efficiently and in an energy-saving manner. Reliable availability is also promised by the fact that the manufacturer provides all maintenance and service work for at least 30 years. The vehicle, which is equipped with lithium-ion batteries, is used as a two-car train unit in Schleswig- Holstein. The fully air-conditioned FLIRT Akku for the NAH.SH has bright passenger compartments equipped with passenger WiFi, and also spacious multi-purpose areas offering space for a total of 216 passengers, of which 123 can be seated.
Technical features
Technology
Automatic central buffer couplings
Lightweight construction in aluminium
Fulfils the requirements of DIN EN 15227 (Crash Norm)
Air-suspension bogies ensure smooth running
Catenary operation with 15 kV and catenary-free operation with lithium-ion traction battery
Fast charging of the lithium-ion traction battery via 15 kV catenary
Comfort
Light, friendly passenger compartments
Air-conditioned passenger compartments and driver's cab
Generously designed multifunctional compartments at all entrance areas
2 entry doors per side
Automatic gap bridges on all doors
Cycle/wheelchair spaces
Modern passenger information system
Universal WC pursuant to TSI PRM
WiFi access
Personnel
Ergonomic driver workplace design
Reliability / Availability / Maintainability / Safety
Fulfils the Crash Norm EN 15227
Fulfils the TSI PRM (fully accessible for people with reduced mobility) and the TSI Noise
Spare part delivery and technical maintenance for more than 30 years by the manufacturer