Hello Richi
The most suitable and I recommend the starter set with a charger and two batteries at Galaxus
"Bosch Home & Garden Starter-Set PBA 18V (2x2,5Ah) + AL 1830 CV" for CHF 76.90.
Then you have everything from one source and it works immediately!
Best wishes and a good start in 2024 !

Bosch Power for all battery 18 V 2.5 Ah and charger AL1830CV.
Galaxus, Bauhaus, Jumbo. Brack. etc.
Gardena also has the same battery and charger. Also belongs to Power for all alliance. I have both and it works perfectly.

Hoi Richi, it's best not to order the device at all. I bought it back then, tested it and sent it back the same day. The device has far too little power. I then bought the
Gardena PowerJet 18V P4A set for 156.00 francs (also from Galaxus). It has decent power for such an inexpensive device. Perfect for small blowing jobs around the house. Best with a spare battery. Incidentally, these are the same batteries as the Bosch.